USGS Multimedia Gallery
This text will be replaced
To embed this video, click "menu" on the video player toolbar. If no transcript and/or closed-caption is available, please notify us.
My name is Ariel Doumbouya and this demo is on
the Hydrography Event Management Tools (HEM). We will be covering what are the HEM tools, why use these tools, how to use the HEM tools, how to access and install the tools as well as how to find additional resources. The HEM Tools are ArcGIS Tools for the creation, management and refresh of event data that is referenced to NHD routes. Currently, there is an ArcGIS 9.3 and ArcGIS 10 version. The HEM Tools are important because they can be used to create new data and improve existing datasets by referencing them to the NHD. The HEM Tools also provide robust editing functionalities and this enhances the usability of the data. Benefits of the HEM Tools are that novice to advanced users can utilize these tools. Any information that can be referenced to the NHD can become an event. The tools can also be used for advanced functionality such as network analysis to find events up or downstream of a certain location or hydrologic modeling to study the effects of dam removal. Some examples of events can include invasive species, stream gages, and water quality data. The basic functions of the HEM Tools include creating and modifying linear and area point events on the NHD route system. Additional functionality includes items such as importing events which can include a shapefile or feature class, event synchronization which is used to update events that have become out of synch with the underlying NHD, editing NHD events which can be used to add gages, dams, and water quality stations that should be incorporated into the NHD national dataset, and network trace which can be used to find a path through braids to trace the path of contaminants or model the path of an invasive species. More information can be found at the NHD homepage at nhd.usgs.gov. This is where you can find information on how to download and install the HEM tools. In addition, there’s information on requesting training and user support. Additional resources include the HEM Tools MyUSGS Community. Here you can find announcements on new releases and bug fixes and an FAQ on topics such as installing an ArcGIS 10 version, NHD event types, linear referencing, and a user support forum where you can see other users questions and how those were resolved. There are many training opportunities associated with the HEM Tools. These include WebEx trainings, trainings from the vector POCs (points of contact), classroom trainings in Denver, and other options. The schedule of these trainings is available on the NHD Stewardship site. In addition, pre-recorded focused topics will be available on the MyUSGS and NHD sites. Any questions can be send to HEM@usgs.gov. This concludes the demo on the Hydrography Event Management Tools. |
DetailsTitle: Hydrography Event Management Tools (HEM) Description: Describes the Hydrography Event Management Tools (HEM); what types of data the tool creates and how one can use them to attach information to the National Hydrography Dataset (NHD). Location: USA Date Taken: 9/1/2011 Length: 3:43 Video Producer: Kristiana Elite , U.S. Geological Survey, National Geospatial Technical Operations Center (NGTOC), National Hydrography Dataset Note: This video has been released into the public domain by the U.S. Geological Survey for use in its entirety. Some videos may contain pieces of copyrighted material. If you wish to use a portion of the video for any purpose, other than for resharing/reposting the video in its entirety, please contact the Video Producer/Videographer listed with this video. Please refer to the USGS Copyright section for how to credit this video. Additional Video Credits: U.S. Geological Survey National Geospatial Technical Operations Center (NGTOC) National Hydrography Dataset Source: For more information go to: National Hydrography Dataset File Details: Suggest an update to the information/tags? Tags: |
* DOI and USGS link and privacy policies apply.