Category Archives: National Government
New Geofabric Tutorials
The Australian Hydrological Geospatial Fabric (Geofabric) tutorial series has expanded, with a further two tutorials now available. The Geofabric is a specialised Geographic Information System. It registers the spatial relationships between important hydrological features such as rivers, water bodies, aquifers … Continue reading
Get ready—2013 Atlantic Hurricane Season is underway
The NOAA Climate Prediction Center is forecasting an active to extremely active season this year. In their 2013 Hurricane Outlook, NOAA states there is a “70 percent likelihood of 13 to 20 named storms” with “3 to 6 major hurricanes”. With Hurricane … Continue reading
A new tool for creating sampling hexagons
by Tim Whiteaker, Research Associate, Center for Research in Water Resources, The University of Texas at Austin, twhit@mail.utexas.edu. I recently needed to create a mesh of hexagons covering a study area in the Arctic for a research proposal. These hexagons … Continue reading
Red, Blue and Purple: mapping the 2012 US Presidential Election
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very time an election occurs, maps become a key component in telling the story, but what type of map best tells the story of the winners and losers? Red/blue choropleths? Areas shaded in an array of purples? Value by alpha maps? Dot density by County? Ultimately, the areas used (e.g. Counties) are arbitrary, exhaust space and dictate the visual pattern we see. We can warp them into cartograms but these sometimes distort geography too much for them to make much sense. The patterns we see are as much a product of the boundaries as the voting patterns of real people in real places. This blog entry explores different ways to map election results and describes a different type of map we made to show the 2012 Presidential election results…it’s a multiscale dasymetric dot density web map (viewable on ArcGIS Online).
GIS Hydro 2013 Pre-Conference Water Resources Workshop: More Coming Soon!
by Steve Kopp, Geoprocessing and Spatial Analysis Team, Esri
Jump-start your conference a day early by joining us for the 20th annual pre-conference Water Resources Workshop on Sunday July 7th. The Water Resources Workshop is a FREE, full day workshop focused on emerging trends in the integration of GIS and Water Resources and how you can use them in your work.
ArcPad Packages
Looking for Wetlands resources?
Look no further than the Esri Hydro Resource Center! We now have an online experience entirely devoted to WETLANDS, that was curated by our friends at the US Fish and Wildlife Service. Please browse our pages to learn about … Continue reading
New Map Packages for the SSURGO Downloader
by Rich Nauman, Product Engineer, Esri. Do you need to use soil data in your analysis? Simply open the SSURGO Downloader Application, navigate to your project area, click the map to open a pop-up and then click the download link … Continue reading
National Hydrography Dataset Plus Version 2
by Tommy Dewald, USEPA Office of Water The National Hydrography Dataset Plus (NHDPlus) is a suite of geospatial products that build upon and extend the capabilities of the NHD (1:100,000 scale) by integrating it with the National Elevation Dataset (30M) … Continue reading
