6/22/2001

Report on the Coordinated Enhanced Observing Period
(CEOP) International Workshop

February 27-March 1, 2001
NASA Goddard Space Flight Center
Greenbelt MD

Michael G. Bosilovich (Co-convener)
and
Rick Lawford (Co-convener)

Sponsored by:
NOAA Office of Global Programs
NASA Land Surface Hydrology Program

EXECUTIVE SUMMARY

The Coordinated Enhanced Observing Period (CEOP) International Workshop was held on February 27 -- March 1, 2001 at NASA's Goddard Space Flight Center, Greenbelt MD. CEOP has been proposed under GEWEX and WCRP to coordinate the data from GEWEX Continental Scale Experiments (CSEs) and other regions as well as from regional modeling, remote sensing and data assimilation sources. Furthermore, this coordination extends beyond data management to the science issues involving water and energy cycle simulation and prediction and monsoon system studies. The primary purpose of the workshop was to discuss and resolve details regarding the CEOP implementation plan.

The immediate actions that were outlined includedfollowing actions are required immediately:

Model Output Location Time Series (MOLTS) are required for high temporal resolution modeling studies. The geographic distribution and temporal frequency of the MOLTS be finalized in a way that best suits the identified science plan.

The characteristics (sampling times, data quality, and metadata) and data types of the CSE reference sites needsneed to be further specified fore each case. For example, a lack of river flow data at some CSEs may prevent the water balance from being closeding.

A Pre-CEOP data collection exercise be undertaken to evaluate the level of effort needed to provide a common format, given the disparate nature of the data sources.

A plan to handle satellite observations initiated in the satellite working group meeting needs to be finalized.

Data assimilation and numerical prediction efforts should be encouraged to participate in CEOP.

The implementation plan will be finalized by April 2001. The collection of CEOP data for the first phase of CEOP is scheduled to begin in July 2001, and will continue through September 2003. This is an optimal period considering based on considerations of the availability of in-situ (CSE) observations as well as new remote sensing platforms.

CONTENTS

1. Workshop Background and Objective

2. Presentation Highlights

• Introduction, NASA EOS and Data Assimilation

• The International Role of CEOP

• Monsoon Studies

• Water and Energy-Cycle Simulations and Predictions

• CSE Status, LDAS and Transferability

3. Summary of Working Groups

• CEOP Scope and Value-Added Products

• Water and Energy Cycle Simulation and Prediction (WESP)

• Monsoon System Studies

• Satellite and In-situ Data Requirements

• Data Analysis and Assimilation Requirements

4. Workshop Recommendations

• Final session

5. Action Items

Appendix I: Acronyms

Appendix II: Agenda

Appendix III: List of Attendees

The Global Water and Energy Cycle Experiment (GEWEX) Hydrometeorology Panel (GHP) is charged with the development of the quantitative understanding of the global hydrological and energy cycles through global observations and comprehensive climate and weather predictions models. The primary effort of obtaining unique and concentrated observations is through Continental Scale Experiments (CSEs). The five main CSEs are:

Baltic Sea Experiment (BALTEX)

GEWEX Asian Monsoon Experiment (GAME)

GEWEX Americas Prediction Project (GAPP), formerly GEWEX Continental-scale International Project (GCIP)

Large-scale Biosphere-atmosphere Experiment in Amazonia (LBA)

Mackenzie GEWEX Study (MAGS)

To maintain and support the long-range goals of the GHP, a coordinated effort is required to transfer the results of between the CSEs and to other regions. It was therefore proposed in 1997 that there beTherefore, in 1996 it was proposed that a selected time period for simultaneous investigations of water and energy cycles that willshould be chosen that would draw upon and extend the efforts of the individual components of GHP. Because of the timing of a set of new satellites, the ending of some GEWEX projects, the readiness of a critical number of researchers, and the maturity of a number of global models and data assimilation systems, the 2001-2003 time period is considered to be optimalthe for theselected as the optimal period. This initiative is known as the Coordinated Enhanced Observing Period (CEOP). The purpose of CEOP is to coordinate the CSEs, satellite data, model simulations and data analyses over a fixed period to provide data in support of GHP goals. The coordination effort also extends to science objectives and the data collected must support the science. In particular, the data development follows two main science themes: the simulation and prediction of the water and energy cycles, and monsoon system studies. In practice, CEOP represents the integrated applied side of GHP science objectives, and thereby reflects the characteristics of these science objectives.

The purpose of the CEOP International Workshop was was to finalize the implementation plan and to better define the role of CEOP in the context of GHP science goals, including the development of remotely sensed data and reanalysis data in CEOP, the development of the data management structure and to update the community on the progress of in-situ field experiments and science objectives.

Introduction, NASA EOS and Data Assimilation

In the opening remarks, Mike Jasinski (NASA HQ) summarized the NASA Global Water and Energy Cycle and NASA Land Surface Hydrology Program in the context of CEOP. Rick Lawford (OGP, GAPP Program Manager) briefly summarized the background for CEOP.

Dr. Michael King, NASA Earth Observing System (EOS) Senior Project Scientist, summarized the status of many of the EOS platforms. He discussed some of the most recent and significant findings of EOS relating to the observations of water vapor and land surface processes. These results included results recent products from Terra and QSCAT / Sea Winds.

Recent research and development plans in the NASA Data Assimilation Office were presented. These include: The development of an entirely new data assimilation system, the improvements to reanalyses and forecasts by assimilating total precipitable water and rainfall, plans to assimilate snow cover and skin temperature. A new method of assimilating water vapor and the on-line bias correction of data were also discussed. (Michael Bosilovich, NASA DAO)

Steve Lord (NCEP/EMC) summarized the data assimilation activities in NOAA, including global and regional reanalyses and the NASA/NOAA Joint Center For Satellite Data Assimilation. NCEP has numerous ongoing projects that could contribute to CEOP including; atmosphere, ocean, land and sea ice data assimilation products; global, regional and ensemble (short -- long range) predictions; mesoscale and land model transferability projects (using Eta and NOAH); and precipitation, snow and vegetation ancillary data products.

The International Role of CEOP

Ron Stewart provided an overview of CEOP including the its science objectives, data products, and outstanding issues. Key elements of CEOP were identified as: Ssatellite data products, in-situ data, data assimilation, model products and data production. The satellite data, data assimilation and data production were issues that needed to be clarified through this workshop.

CEOP was discussed in the context of WCRP and GEWEX Phase II science plan. CEOP plays a key role in gathering the data required for land / atmosphere interaction and transferability studies. It will also contribute to answering GEWEX phase II science questions, such as "Is the water cycle accelerating?" The CEOP effort will also contribute to projects that will determine the seasonal and interannual predictability of the water and energy cycles. (Paul Try, IGPO)

The Committee on Earth Observing Systems (CEOS) agencies have been encouraged (by their Strategic Implementation Team) to support the implementation of a CEOP Satellite Data Integration Center, establish a CEOP Satellite Working Group and to provide access to satellite observations. CEOP needs to prepare a statement of requirements for the CEOS agencies consideration by CEOS. Further details are provided in the discussion of the Satellite Working Group. (Toshio Koike, U. Tokyo)

The implementation of CEOP will take several phases: Planning (mostly finished), Preparations (underway) and Data collection and analysis (scheduled to begin July 2001), principal research and advanced research. Many issues regarding the third phase needed to be addressed in working groups including, data management, remotely sensed data and project scope. (John Leese, NOAA/OGP)

Monsoon Studies

The monsoon research community has a considerable interest in CEOP. Efforts such as Monsoon Impacts on Continenuatall Areas -- Pilot Studies (MICAPS) require detailed observations from monsoon regions coincident in time. Similarities of between different monsoon regions were discussed, for example, the North and South American low level jets. This relates directly to the transferability goals developed through CEOPSuch similarities need to be understood for planning transferability studies. The teleconnections that appear to link the Asian monsoon and American monsoons require further study. (William Lau, NASA GSFC)

The CEOP Asian-Australian Monsoon Project (CAMP) was established as awhich is part of GAME in cooperationhas established collaborations with CLIVAR to investigate the coupled atmosphere / ocean / land interactions in the Asian/Australian/A monsoon. As such, CAMP requires extensive observations over land and ocean. In-situ observations (land stations, ships and buoys) from GAME will be supplemented with remotely sensed observations. CAMP will play a critical role in the study of the global monsoon system (with MEAS, NAME and CATCH). (Toshio Koike, U. Tokyo)

Variability of the American Monsoon Systems (VAMOS) is participating in CEOP through the North American Monsoon Experiment (NAME) and South American Monsoon Experiment (MESA). Aspects of VAMOS are aimed directed at better understanding the seasonal cycle and variability of many time scales, and the impact of land surface processes on medium and long-range prediction. VAMOS will use CEOP to better address these research projects prioritiesand link to CEOP specific data, such as MOLTS and remotely sensed data. (Roberto Mechoso, UCLA)

The North American Monsoon Experiment (NAME) period will largely coincide with the CEOP enhanced observing periods. NAME encompasses the Ocean -- Land -- Atmosphere interactions, and is a joint CLIVAR-GEWEX process study. NAME will propose the CEOP Model Output Location Time Series (MOLTS) points that best characterize the monsoon's life cycle and are coincident with existing profile observations. The collaboration between NAME and CEOP will improve the understanding of warm season precipitation processes, the evolution of the NA monsoon and contribute to improved predictability of the monsoon system. (Wayne Higgins, NOAA/CPC)

Water and Energy-Cycle Simulations and Predictions

CEOP Water and Energy-Cycle Simulations and Predictions (WESP) are evolving from the regional vertically integrated water and energy budget diagnostic studies (WEBS) currently underway by the Continental Scale Experiments (CSEs) toward more comprehensive model evaluations, simulations and predictions at global scales. The WESP working group has developed a research agenda, which will make use of the comprehensive global data sets being developed as part of CEOP, to study diurnal to interannual variations of water and energy processes in the subsurface, the planetary boundary layer and the troposphere. Specific objectives include developing better global characterizations of surface vegetation, snow and soil moisture, atmospheric cloud and water vapor and the associated water and energy cycle processes. Transferability experiments, which will use models developed for specific regions in independent regions, are just beginning and should contribute toward improved predictability and model simulation. (John Roads, UCSD)

CSE Status, LDAS and Transferability

The BALTEX SSG determined that there should be involvement in CEOP, relatedwill be involved in CEOP through to a new German research program on the water cycle climate. Twenty institutions are receiving BALTEX related funding through 2003, with a potential for a follow-on project. There is a large effort toward validating regional climate models using BRIDGE data. The CEOP effort will be useful to better understand the North Atlantic Oscillation and its relationship to the Baltic Sea vicinityregional climate variability. (Harmut Grassl and Burkhardt Rockel)

Jose Marengo (CPTEC/INPE) summarized the LBA continuous observations that will contribute to CEOP. The details of eight CEOP reference sites were provided. In addition, six field campaigns across Amazonia will be occurring over the life cycle of CEOP. MOLTS locations were proposed. There will also be a regional reanalysis using the NCEP Eta model for LBA and Amazonia during the CEOP period (coincident with a suite of ensemble numerical simulations). The LBA Data Information System (DIS) will be ready prior to the start of CEOP data collection.

The GEWEX Americas Prediction Project (GAPP, a follow-on to GCIP) has vested interest in CEOP, and will benefit from interaction with the CEOP participants. GAPP is funding or otherwise supporting data collection activities (ARM/CART and flux towers), regional reanalysis projects and background studies for NAME and WESP. GAPP can also provide resources for data coordination and management. From CEOP, GAPP requires a framework for monsoon studies, forcing data for mesoscale and hydrologic models for initialization and process studies (from global assimilation to support transferability studies), estimates of both model and observation uncertainty and a reliable CEOP data management system. (Rick Lawford, NOAA/OGP)

Land Data Assimilation Systems

Results from the NCEP land modeling and data assimilation were reviewed. The NCEP Land Data Assimilation System (LDAS) is investigating and using an adjoint model for surface skin temperature assimilation. Soil moisture is important for atmospheric forecast initializations and will soon be assimilated. This LDAS system is also moving toward a global domain. (Ken Mitchell, NCEP/EMC)

Land Data Assimilation Systems (LDAS) are an emerging technology for analyzing the vast quantities of remotely sensed data and in-situ observations and model simulations. Global LDAS (GLDAS) is uniquely suited to exploit the CEOP coordination effort to undertake transferability studies of land modeling and assimilation processes and techniques. This effort would feedback to CEOP assessment of data quality. It was also suggested that GLDAS could be a center of data integration for CEOP. (Paul Houser, NASA/GSFC)

The Saskatchewan GEWEX Experiment (SAGE) is designed to understand the transferability of knowledge between regions. Specifically, the hydrologic cycle of the SAGE region will be intercompared with the MAGS data (Mackenzie Basin). The model capability demonstrated for MAGS will be tested for reproducibility in SAGE. By contributing to the CEOP experiment, the data from both MAGS and SAGE will be available for transferability studies. (Ron Stewart, MSC)

Further transferability studies in South America were presented by Hugo Berbery (U. Maryland). The La Plata River-basin Model Evaluation and Research Applications (La PRIMERA) project aims to demonstrate the degree to which the forecasting ability developed for the GCIP (data rich) region is applicable to the La Plata river basin. The key issue is the short-term predictability of the hydrologic and energy cycles. La PRIMERA encourages two types of transferability exchanges: between forecasting centers (NCEP and CPTEC) and between research universities. The core of the project will be carried out in the third EOP of CEOP with continuing background studies continuing until then.

The GHP established the Data Management Working Group (DMWG) to coordinate and facilitate the data management activities of the CSE's. CEOP has grown to more than the coordination of CSE observations and requires special consideration in the DMWG strategy. CEOP Data Management will include the CSE in situ data, ancillary in situ data provided by CSE enhanced observations, model simulation data, regional and global assimilated data and remotely sensed data (even level 1b data for small areas around the CSEs). Gridded data sets (model and assimilation) will provide MOLTS at high temporal resolution rather than the complete data files. The complete MOLTS locations are still being determined. CSE observations will be distributed using a tiered approach. Level 0 -- As is (No QC), Level 1 -- Reformatted (central source, on-line, minimal QC), Level 2 -- Derived (additional derived data and processing, more extensive QC, online), Level 3 -- Final (completed data available on CD), Level 4 -- Remotely sensed data (3 combined with remote sensing). Several outstanding issues need to be resolved regarding data management (discussed in the working groups) including the development of a Pre-CEOP data collection project. (Steve Williams, UCAR)

CEOP Scope and Value-Added Products

Following the oral presentations, questions were raised regarding the scope of CEOP (objectives that are similar to those of GEWEX and CLIVAR) and the value-added product of CEOP (what will CEOP produce above and beyond the work already being done by individual institutions or projects). These questions were addressed by each working group in their reports, but they are summarized here.

CEOP was initiated as an applied project out ofby GEWEX. The idea behind CEOP was designed to coordinate the regional CSE observations and to facilitate global and transferability studies. At the same time, the science that motivates GEWEX and CEOP must be considered so that the coordinated data can satisfy the needs of numerical and observational research. As the concepts behind CEOP developed, numerical modeling, remote sensing and data assimilation activities became entrained into the CEOP project. Therefore, in its simplest form, the scope of CEOP is primarily data collection and organization with respect to GEWEX science. The science activities that drive CEOP (as established through GEWEX and CLIVAR) must be coordinated simultaneously so that the final product is optimally useful. It should be noted that the goals of producing the CEOP data set requires tremendous effort of data management (this is not an easy task and will not come together without planning and forethought).

Since the initiation of CEOP, several CSEs that would have otherwise expired (e.g. BALTEX -- BRIDGE) found renewed funding to participate in CEOP. Other modeling and assimilation organizations are becoming aware of the effort, and are expressing interest to provide data. Therefore, the coordination effort itself will lead to a data set that is greater than the sum of its parts. In turn, participating organizations will benefit through increased exposure to the international science community, and feedback regarding their data products. In turn, this unsolicited feedback will help improve modeling and data assimilation products, and facilitate future collaborations. Further, CEOP organization and definition of data requirements lessens the burden of data production on the participating organizations. By stepping up and taking on the responsibility of coordination, CEOP will facilitate numerous activities beyond the individual source data sets:

• Unification of disparate data sets for general scientific use

• Foundation Establishment of the transferability concept and protocols

• Validation, development and intercomparisons of models and observations in the context of many climate regimes (the essence of transferability) by providing a focused period of intensive observations

• Provision for CSEs to interact with a broad range of global programs (e.g. IGOS and CEOS)

• Provision for a legacy data set that will be useful well long into the future for global water and energy cycle studies

While much of the data may exist without CEOP, the lack of organization and inherent disparities between different research groups would be pose an intractable problem for a single researcher attempting to undertake a global study (e.g. transferability or monsoon teleconnections) using all the proposed CEOP data.

Water and Energy Cycle Simulation and Prediction (WESP)

Chair: John Roads

The purpose of WESP in CEOP is to better understand the simulation and prediction of the water and energy cycles using CEOP as a two-year case study that additionally serves as a precursor for a more comprehensive global hydroclimatological project. Each of the CSEs are contributing data to the WESP effort. However, it is also recognized that the some CSEs may have unique activities that can contribute to WESP and these need to be evaluated to help better define future field experiments. Further activities, such as LDAS, AMIP, and PIRCS as well as operational analysis products will play an important role in WESP. The modeling and analysis activities require that MOLTS locations and data content be finalized.

Remotely sensed data can provide a focal point for transferability studies due to its global naturecoverage. The participants identified access to remotely sensed observations as an important need from CEOP. For example, CEOP may be able to provide additional support to instrument teams undertaking calibration/validation exercises over the CEOP period. The satellite data requirements need to be finalized. CEOP will bring together disparate data sets (in situ, satellite, model and analysis), but this entails bringing together the observationalists and modelers with a common scientific objective.

Issues that still need resolved:

• MOLTS requirements must be clarified to to provide the bestoptimally link observations, models and science

• Science questions should be used to screen the data, in order to have manageable data sets

• There are still many concerns about the consistency of the in-situ data, as well as possible satellite launch delays

Co-Chairs: William Lau and Roberto Mechoso

The development of the CEOP data set will contribute greatly toward monsoon research, providing a pilot study of the global monsoon system. In particular, the interconnectivity between monsoon system and the commonalities and differences between monsoon regions needs further study. This includes the entire life cycle of the different monsoons, onset, intensity and breaks. The CSE reference site data will include much of the data needed for monsoon studies, but soil moisture and snow cover are especially needed. These monsoon studies are intimately tied to the transferability concepts that CEOP will develop and foster. However, collaborations with operational centers are required to perform sensitivity studies of the monsoon circulations.

The key regional monsoon study experiments are:

CEOP Asian-Australian Monsoon Project (CAMP)

North American Monsoon Experiment (NAME)

Monsoon Experiments in South America (MESA)

CATCH Studies on the West African Monsoon System

CEOP will facilitate the intercomparison of data in different regions over concurrent time periods. Monsoon Impacts on Continental Areas Pilot Study aims to identify and understand the teleconnection patterns associated with the dominant global heat sources and sinks and the affect on the hydrologic cycle over the continents.

Satellite and In-situ Data Requirements

Co-Chairs: Toshio Koike and Steve Williams; Rapporteur: Venkat Lakshmi

The periods of most intensive data collection will be undertaken during Enhanced Observing Periods (EOPs). There will be three distinct EOPs:

EOP-1, Coordinated Systems Test, 1 July - 30 September, 2001

EOP-2, First Annual Cycle, 1 October 2001 - 30 September 2002

EOP-3, Second Annual Cycle, 1 October 2002 - 30 September 2003

EOP-1 will be a short end-to-end test of all systems needs to produce the data for general use during a ramp-up period. The primary data sets collected during EOP-1 will be primarily the in-situ reference sites and routine supporting satellite data. EOP-2 and EOP-3 will focus more on the annual cycle with data collected during special field campaigns at the reference sites; data from the new satellites placed into orbit during these periods; and special model output from various numerical modeling centers. The data collection in all three EOPs should be as comprehensive as possible: CSE regional data including special campaigns, numerical model data, operational analyses, remote sensing and other sources (e.g. GLDAS). Reanalyses will require additional time following the observing periods to be produced. It is expected that data from each EOP will be processed and available to the scientific community one year following each EOP.

There is no comprehensive centralized data management effort planned for CEOP; thus each CSE will be responsible for providing data in a coordinated fashion to the CEOP scientific community. This will be coordinated by the GHP Data Management Working Group. An initial effort is underway for each CSE to provide a pre-CEOP "sample" Reference Site data that will be used to catalog observations made at each site as well as document various data formats and data set sizes to be expected during CEOP. Each CSE will continue to maintain their satellite inventories and data holdings during CEOP for re-distribution.

Clearly, the key to the success of CEOP is to utilize model output and remote sensing data to the extent possible with the reference sites used as "validation" or ground truth. The comparison of various global and regional models will be valuable for transferability studies. Many issues that focus on remotely sensed data were discussed in post-workshop meetings between Toshio Koike and several NASA scientists.

The CEOP implementation must address the needs of the remote sensing data. Specifically, level 1B data is too extensive to manage for the entire globe, but the data management of level 1B data for each CSE reference sites should be tractable. This will provide the ability to improve algorithms and contribute to additional calibration and validation exercises. Level 2 and 3data will be collected for entire CSE regions. Preview examples of the integrated satellite products will be made available on the internet. A proposal on CEOP satellite data integration will be made to the CEOS Plenary session in November 2001.

Data Analysis and Assimilation Requirements

Co-Chairs: Paul Houser and Burkhardt Rockel Rapporteur: Michael Bosilovich

Inclusion of data assimilation and reanalysis products in CEOP is mutually beneficial to the data assimilation community and the GEWEX/CEOP science effort. Data assimilation will provide a regularly gridded characterization of the water and energy cycle processes. Global analyses will provide lateral boundary and initial conditions for regional models (research mesoscale and climate models), as well as validation for forecasting experiments. In return, the expanded user base created through the CEOP community and the coordinated effort will provide valuable feedback on the quality of the assimilation systems, which will prompt stimulate research and advances in the assimilation systems. Further, the intercomparison of the high quality observations and several analysis systems will improve the understanding of the envelope of uncertainty that exists between the analyses and observations. The key to this collaboration is an established prime focus period where the coordinated, augmented and compiled data is are widely available.

There exists a wide scope of potential collaboration in the data assimilation. Numerous regional analysis activities are already planned. Major centers with global data assimilation systems will participate at some level (e.g. NCEP, ECMWF and NASA/DAO). Further, the LDAS and GLDAS projects are well represented within GEWEX programs. This means that the final CEOP data will most likely include analysis data sets that are global coupled/uncoupled and regional coupled/uncoupled.

The level at which the data assimilation centers could participate can be characterized in a tiered approach:

Tier 1 -- Operational Analyses Some centers already provide operational data analysis products. Theseis data generally conforms to the individual center's specifications, but is widely available within a short time period following the observational time. With only small resources, the operational centers could provide theseis data to the CEOP effort. Of course, over the period of CEOP data collection, operational systems may be updated and improved regardless of the CEOP timetables, thereby limiting the usefulness of the data.

Tier 2 -- CEOP Reanalysis Given that the operational system may change in time, the operational centers may provide a reanalysis of the CEOP time period. This would be performed just prior to the beginning of the CEOP research phase, using a well-tested and validated version of the assimilation system. In this way, the reanalysis system will be consistent in time. In general, this will require additional resources by the centers that participate.

Tier 3 -- Assimilation of CEOP Specific Observations CEOP will compile high quality observations from regions around the globe. In some cases, it would be useful if theseis data were included in an assimilation system. Further, some observations that are not presently assimilated may be found to be important for the science objectives. In order to develop reanalyses with CEOP specific data, considerable resources would be required. These projects would need a scientific proposal and collaborations to document the importance and need for to obtain the necessarythe projects resources.

It is important to note that some smaller institutions may not have the resources to produce realtime analyses, but may work more easily in a research mode (better suited for Tier 2 and 3). The working group recognizes that many other institutes may like to participate, and they are welcome. Tier 1 and 2 analyses would provide a backbone basis of analyzed data suitable to support science research outlined by CEOP and GEWEX. Tier 3 would represent data assimilation research and development well beyond the CEOP data collection period. The key would be a focus period with well-documented observations that CEOP can would provide.

Some outstanding questions were again raised. What are the data requirements from CEOP (MOLTS locations, format, additional diagnostic information)? What is needed from a CEOP period reanalyses? What is the common data format?

CEOP will provide a focus period for intercomparison and validation of assimilation products. The independent validation of any analysis system against global observations is critical for future development of the system. This is the essence of transferability of the model and assimilation systems.

4. Workshop Recommendations

Final session

Co-Chairs: Ron Stewart and Toshio Koike

The main deliverable of the CEOP effort is to provide data from a multitude of sources in a common format. However, the data must also be coordinated with the scientists that will use the data in their research. The CEOP International Workshop represented a meeting of the data providers and scientists who will use the global nature of the proposed data to discuss the implementation plan. The first step in this is to identify the typical data available from CSE's, remote sensing, analysis systems and numerical models. This will be accomplished through a gathering the development of a Pre-CEOP data set. It was determined that a Pre-CEOP data set that wcould serve bestoth as a preliminary data management exercise. Its and full scientific purpose usefulnesswould isbe difficult to determinegenerate because of difficultiesthe inability to converge on a uniform time period. All potential contributors will be asked to provide two weeks of data, and try to get data near a pre-determined date. The Pre-CEOP data will be used to assess the amount of work involved in unifying and managing the data.

The implementation plan will be finalized by April 2001 and will address the major issues brought up by the working groups. The collection of CEOP data is scheduled to begin in July 2001, and will continue through September 2003. This is an optimal period considering the availability of in-situ (CSE) observations as well as new remote sensing platforms.

5. Action Items

• Finalize the MOLTS Properties and send a letter to NWP centers requesting their participation in CEOP, in part by contributing MOLTS and gridded data from their center.

• Determine reference site data characteristics, including hydrologic characteristics

• Develop and release a Pre-CEOP data set in a timely manner

• Determine the available satellite data and how it will be handled and delivered.

• Finalize the implementation plan

Appendix I: Acronyms

• ALLS: American Low-Level Jets

• AMIP: Atmospheric Model Intercomparison Project

• CDC: Climate Diagnostics Center

• CEOP: Coordinated Enhanced Observing Period

• CLIVAR: Climate Variability, a WCRP research program

• CPC: Climate Prediction Center

• CPTEC: Cemter for Weather Forecasts and Climate Studies

• ECMWF: European Center for Medium Range Weather Forecasts

• EDAS: Eta-model Data Assimilation System

• ENSO: El Niño Southern Oscillation

• EOP: Enhanced Observing Period

• GAPP: GEWEX America Prediction Project

• GCIP: GEWEX Continental-Scale International Project

• GCM: General Circulation Model

• GEWEX: Global Energy and Water Experiment

• GPS: Global Positioning System

• LDAS: Land Data Assimilation System (E- Europe, N- North America, G- Global)

• MESA: Monsoon Experiment South America

• MOLTS: Model Output Location Time Series

• NAME: North American Monsoon Experiment

• NAMS: North American Monsoon System

• NAO: North Atlantic Oscillation

• NASA: National Aeronautics and Space Administration

• NCAR: National Center for Atmospheric Research

• NCDC: National Climatic Data Center

• NCEP: National Centers for Environmental Prediction

• NOAA: National Oceanic and Atmospheric Administration

• OGP: Office of Global Programs

• PACS: Pan American Climate Studies

• QSCAT: NASA's Quick Scatterometer

• SAGE: Saskatchewan GEWEX Experiment

• SSMI: Special Sensor Microwave Imager

• SST: Sea Surface Temperature

• SSTA: Sea Surface Temperature Anomalies

• TOVS: TIROS Operational Vertical Sounder

• TRMM: Tropical Rainfall Measuring Mission

• VAMOS: Variability of the American Monsoon System, an element of CLIVAR

Appendix II: Agenda

Appendix III: List of Attendees

 

Robert Adler NASA/ Goddard Space Flight Center Goddard Mail Code 912 Greenbelt, MD 20770 Phone: 301.614.6290 Fax: 301.614.5492 robert.adler@gsfc.nasa.gov				Richard Armstrong University of Colorado/NSIDC Phone: 303-492-1828 Fax: 303-492-2468 rlax@kryos.colorado.edu
Raymond Arritt Iowa State University 3010 Sgronomy Hall Ames, IA 50011 Phone: 515-294-9870 Fax: 515-294-2619 rwarritt@iastate.edu				Roni Avissar Rutgers University New Brunswick, NJ 08901-8551 Phone: 732-932-9520 Fax: 732-932-3562 avissar@envsci.rutgers.edu
Debbie Belvedere NASA/ Goddard Space Flight Center Code 974 Greenbelt, MD 20771 Phone: Fax: debbieb@hsb.gsfc.nasa.gov				Ernesto Hugo Berbery University of Maryland 3427 CSS Building College Park, MD 20742 Phone: 301-405-5351 Fax: 301-314-9482 berbery@atmos.umd.edu
Michael Bosilovich NASA/ Goddard Space Flight Center Code 910.3 Greenbelt, MD 20771 Phone: 301-614-6147 Fax: 301-614-6297 mikeb@dao.gsfc.nasa.gov				Antonio Busalacchi University of Maryland Phone: 301-405-5599 Fax: 301-405-8468 tonyb@essic.umd.edu
Jian-dar Chern NASA Goddard Space Flight Center Code 910.3 Greenbelt, MD 20771 Phone: 301-614-6175 jchern@dao.gsfc.nasa.gov				Paul Dirmeyer COLA / IGES Phone: 301-902-1254 Fax: 301-595-9793 dirmeyer@cola.lges.org
Qingyun Duan National Weather Service 1325 East-West Highway Silver Spring, MD 20910 Phone: 301-713-1018 Fax: 301-713-0963 qingyun.duan@noaa.gov				Dawn Erlich Int'l Gewex Project Office Phone: 301.565.8345 Fax: 301.565.8279 gewex@cais.com
Benjamin Felzer NOAA/OGP 1100 Wayne Avenue Suite 1210 Silver Spring, MD 20910 Phone: 301-427-2089 x196 Fax: 301-427-2073 felzer@ogp.noaa.gov				Gilberto Fisch Centro Tecnico Aeroespacial Praca marechal Eduardo Gomes, 50 Sao Jose dos Campos, 12228-904 Phone: 55-12-347-4565 Fax: 55-12341-2522 gfisch@iae.cta.br
Wolfgang Frohlich Federal Institute of Hydrology Kaiserin-Augusta-Anlagen 15-17 Koblenz, 56068 Phone: 49-30-63986-375 Fax: 49-261-13065704 froehlich@bafg.de				Barry Goodison Meteorological Service of CANADA 4905 Dufferin Street Downsview Ontario, M3H 5T4 Phone: 416-739-4345 Fax: 416-439-5700 barry.goodison@ec.gc.ca
Arnold Gruber NOAA / NESDIS 5200 Auth Road Camp Springs, MD Phone: 301-763-8251 Fax: 301-763-8580 Arnold.gruber@NOAA.Gov				Forrest Hall NASA Goddard Space Flight Center Greenbelt, MD 20771 Phone: 301-614-6659 Fax: 301-614-6695 fghall@ltpmail.gsfc.nasa.gov
Dirceu Herdies NASA Goddard Space Flight Center Phone: 301-614-6167				Wayne Higgins Climate Prediction Center NCEP / NNS / NOAA Phone: 301-763-8000 x7547 Fax: 301-763-8395 whiggins@ncep.noaa.gov
Holger Hoff PIK Telegrafenberg Potsdam, 14473 Phone: 49331-2882573 Fax: 49-331-2882547 hhoff@pik-potsdam.de				Paul Houser NASA/ Goddard Space Flight Center Code 974 Greenbelt, MD 20771 paul.houser@gsfc.nasa.gov
George Huffman SSAl GSFC Mail Code 912 Phone: 301.614.6308 Fax: 301.614.5492 huffman@agnes.gsfc.nasa.gov				Ronald Hutjes Alterra Green World Research Droevendaalse steeg 3 Wageningen, NL 6700 AA Phone: 31-317-474744 Fax: 31-317-419000 hutjes@alterra.wag-ur.nl
Michael Jasinski NASA Headquarters Manager, Land Surface Hydrology Program (Acting) Office of Earth Science, Code YS Washington, DC 20546 Phone: 202.3581847 Fax: 301.614.5782 mjasinsk@mail.hq.nasa.gov				Masao Kanmitsu CPC / NCEP / NOAA Phone: 301-763-8000 ex 7508 Fax: 301-763-8395 Masao.Kamamitsu@noaa.gov
Michael King NASA/ Goddard Space Flight Center Code 900 Greenbelt, MD 20771 king@climate.gsfc.nasa.gov				Toshio Koike University of Tokyo 7-3-1 Hongo Bunkyo-ku Tokyo, 113-8656 Phone: 81-3-58416106 Fax: 81-3-5841-6130 tkoike@hydra.t.u-tokyo.ac.jp
Venkat Lakshmi University of South Carolina Dept. of Geological Sciences Columbia, SC 29208 Phone: 803.777.3120 Fax: 803.777.6610 vlakshmi@geol.sc.edu				Tim Lang Harvard University 673 Franklin Street #206B Worcester, MA 1604 Phone: 508-756-5090 tlang@myspot.net
William Lau NASA/ Goddard Space Flight Center Code 913 Greenbelt, MD 20771 Phone: 301-614-6185 Fax: 301-614-6307 lau@climate.gsfc.nasa.gov				Rick Lawford NOAA Office of Global Programs 1100 Wayne Avenue Suite 1210 Silver Spring, MD 20910 Phone: 301.427.2089x146 Fax: 301.427.2073 lawford@ogd-noaa.gov
John Leese Gewex International Project Office NOAA/OGP Phone: 301-427-2089 ext: 148 Fax: 301-427-2073 Leese@ogp.noaa.gov				David Legler US CLIVAR Office Suite 250 1717 Pennsylvania Ave, NW Washington, DC 20006 Phone: 202 419 3471 Fax: 202-223-3064 legler@usclivar.org
Dennis Lettenmaier University of Washington Phone: 206-543-2532 Fax: 206-685-3836 dennis@u.washington.edu				Dag Lohmann NOAA/UCAR 5200 Auth Road Camp Springs, MD 20746 Phone: 301-763-8000 x7278 Fax: 301-763-8545 dlohmann@ncep.noaa.gov
Stephen Lord NOAA/ NWS/ NCEP/ EMC Phone: 301-763-8000 ext. 7202 Fax: 301-703-8545 stephen.lord@noaa.gov				Lifeng Luo Rutgers University 14 College Farm Road New Brunswick, NJ 08901-8551 Phone: 732-932-3891 Fax: 732-932-8644 luo@envsci.rutgers.edu
Jose Antonio Marengo Orsini CPTEC/INPE Rodovia Dutra km. 40 12630-000 Cachoeira Paulista Sao Paulo, Phone: 55-17-560-8464 Fax: 55-17-561-2136 marengo@cptec.inpe.br				Carlos Mechoso University of California Los Angeles Dept. Atmospheric Sciences Phone: 310-825-3057 Fax: 310-206-5219 mechoso@atmos.ucla.edu
Tilden Meyers NOAA PO Box 2456 Oak Ridge, TN 37830 Phone: 865.576-1245 Fax: 865.576.1327 meyers@atdd.noaa.gov				Kenneth Mitchell NCEP/EMC (NOAA/NWS) Room 207 5200 Auth. Road Camp Springs, MD 20746-4304 Phone: 301-763-8000 x 7225 Fax: 301-763-8545 kmitchell@ncep.noaa.gov
Pierre Morel UMBC/GEST 1000 Hilltop Circle Baltimore, MD 21250 Phone: 410-455-8808 Fax: 410-455-8806 morel@umbc.edu				Carlos Nobre Director CPTEC/INPE C. Postal 01 12 630-000 Cachoeira Paulista, SP Phone: 55-12-5608499 Fax: 55-12-5612835 nobre@cptec.inpe.br
Robert Oglesby NASA MSFC GHCC Phone: 256-961-7595 Fax: 256-961-7723 bob.oglesby@msfc.nasa.gov				Thomas Phillips Lawrence Livermore Nat'l Lab L-264 Phone: 925.422.0072 Fax: 925.422.7675 phillips@pcmdi.llnl.gov
Rachel Pinker University of Maryland Phone: 301-649-1928 Fax: 301-314-9482 pinker@atmos.umd.edu				John Roads Scripps ECPC UCSD, 0224 La Jolla, CA 92093 Phone: 858.534.2099 Fax: 858.534.8561 jroads@ucsd.edu
Alan Robock Rutgers University NASA Center Phone: 732.932.9478 Fax: 732.932.8644 robock@envsci.rutgers.edu				Burkhardt Rockel GKSS Research Centre Max-Planck Strasse 21502 Geesthacht, Phone: 49-4152872008 Fax: 49-4152872020 rockel@gkss.de
John Schaake NOAA/NWS Phone: 301-713-1660 Fax: 301-713-0963 john.schaake@noaa.gov				Robert Schiffer NASA Headquarters Code YS 300 E Street, SW Washington, D.C. 20546 Phone: 202.358.1876 Fax: 202.358.2770 rschiffer@hq.nasa.gov
Wei Shi Climate Perdiction Center / NCEP / NWS / NOAA Phone: 301-763-8000 ext.7545 Fax: 301-763-8395 wshi@ncep.noaa.gov				Maria Assuncao Silva Dias University of Sao Paulo Goddard Space Flight Center Phone: 55-11-3818-4713 Fax: 55-11-3818-4714 mafdsdia@model.iag.usp.br
Pedro Silva Dias University of Sao Paulo Goddard Space Flight Center Phone: 55-11-3818-4713 Fax: 55-11-3818-4714 pldsdias@model.iag.usp.br				Ronald Stewart Environment Canada Goddard Space Flight Center Phone: 416-739-4122 Fax: 416-739-5700 ron.stewart@ec.gc.ca
Yogesh Sud NASA Goddard Space Flight Center				Dan Tarpley NOAA/NESDIS Phone: 301.763.8042 dan.tarpley@noaa.gov
Dave Toll NASA Goddard Space Flight Center Code 974 Greenbelt, MD 20771 Phone: 301-614-5801 Fax: 301-614-5808 dave.toll@gsfc.nasa.gov				Paul Try International GEWEX Project Office 1010 Wayne Avenue Suite 450 Silver Spring, MD 20910 Phone: 301-565-8345 Fax: 301-565-8279 gewex@cais.com
Sushel Unninayar NASA Goddard Space Flight Center Code 900 Greenbelt, MD 20771 Phone: 301-286-2757 Fax: 301-286-0574 sushel@pop900.gsfc.nasa.gov				Charles Vorosmarty University of New Hampshire Morse Hall, 39 College Road Durham, NH 3824 Phone: 603.862.1792 Fax: 603.862.0587 charles.vorosmarty@unh.edu
Chris Weaver Rutgers University NASA Center Center for Environmental Prediction & Dept. Environmental Sciences Phone: 732.932.7902 Fax: 732.932.8644 weaver@cep.rutgers.edu				Steve Williams UCAR/JOSS PO Box 3000 Boulder, CO 80307 Phone: 303-497-8164 Fax: 303-497-8158 sfw@ucar.edu
Zong-Liang Yang University of Arizona 1133 E. North Campus Drive Tucson, AZ 85721 Phone: 520-621-8922 Fax: 520-621-1422 liang@hwr.arizona.edu				Evgeney Yarosh NOAA/CPC World Weather Building Rom 605 Camp Springs, MD 20910 Phone: 301.763.8227 x 7575 Fax: 301.763.8395 eyarosh@ncep.noaa.gov