2007 Annual Report 1a.Objectives (from AD-416) Obtain and analyze historical and new wind, rainfall and associated climatic data for multiple regions of the Pacific Northwest to develop relationships for predictions of wind erosion, soil water conservation and airborne particulates. 1b.Approach (from AD-416) Obtain historical climatic data sets additional to those already accumulated for the Pacific Northwest region. These are to be analyzed for improving predictive relationships of wind erosion and soil water regimes for various methods of farming and conservation tillage systems. These data and analyses will be carefully coordinated with on-going projects of the USDA/ARS for development and calibration of wind and water modeling. Emphasis will be for analyses of climatic data and soil erodibility characteristics pertinent to both wind erosion and fine dust emissions. This work is a continuation of Agmt. #58-5348-7-982 (5348-11000-002-05S). Documents SCA with WSU. Formerly 5328-11000-003-08S (2/05). 3.Progress Report This report serves to document research conducted under a specific cooperative agreement between the USDA-ARS and Washington State University. Additional details of research can be found in the report for the parent CRIS 5348-11000-004-00D entitled “Strategies for predicting and controlling PM10 emissions from agricultural soils within the Columbia Plateau.” This project supports the in-house project (5348-11000-004-00D) in developing the capability to predict wind erosion and fugitive dust emissions from agricultural soils within the Columbia Plateau. Soils collected during the 2006 field campaign near Ralston, WA were analyzed for particle size distribution and PM10 content. Work assignments and performance by the cooperator are reviewed monthly. 4.Accomplishments None 5.Significant Activities that Support Special Target Populations None