Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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1. Aerial Imagery: Iowa, 2016

2016. Iowa Homeland Security and Emergency Management. This aerial imagery was flown in the spring of 2016 over the eastern part of the state. it is four-band imagery that includes the near-infra-red ba...

2. Aerial Photography: Carver County, Minnesota, 2005

2005. CarverGIS. Carver County 2005 Aerometric Imagery.

3. Aerial Photography: Carver County, Minnesota, 2008

2008. CarverGIS. Carver County 2008 Pictometry Imagery.

4. Aerial Photography: Carver County, Minnesota, 2011

2011. CarverGIS. Carver County 2011 Pictometry Imagery.

5. Aerial Photography: Carver County, Minnesota, 2013

2013. CarverGIS. Carver County 2013 Aerometric Imagery.

6. Aerial Photography: Dakota County, Minnesota, Spring 2017

2017. Dakota County. County wide ortho photography at 6-inch pixel resolution in County Coordinates. The photography was exposed on 4/1/17, 4/4/2017, 4/6/2017, 4/7/2017...

7. Aerial Photography: Iowa, 1930s

1930. Iowa DNR. This dataset represents panchromatic orthophoto imagery produced from black and white aerial photographs. This dataset was developed from individua...

8. Aerial Photography: Iowa, 1950s

1950. Iowa DNR. This dataset represents panchromatic images produced from black and white aerial photographs. This dataset was developed from individual aerial ima...

9. Aerial Photography: Iowa, 1960s

1960. Iowa DNR. This dataset represents panchromatic images produced from black and white aerial photographs. This dataset was developed from individual aerial ima...

10. Aerial Photography: Iowa, 1970s

1970. Iowa DNR. This dataset represents panchromatic images produced from black and white aerial photographs. This dataset was developed from individual aerial ima...

11. Andreas Atlas: Iowa, 1875

1875. Iowa DNR. This dataset is a georectified image of the Illustrated Historical Atlas of the State of Iowa, 1875 by A.T. Andreas. The David Rumsey Map Collectio...

12. Aquifer sensitivity in shallow aquifers: Indiana, 2015

2015. Indiana Geological Survey (IGS), Center for Geospatial Data Analysis (CGDA), and Sally L. Letsinger (data compiler). Aquifer_Sensitivity_Near_Surface_IN is a raster data layer that displays a reclassified raster data layer of estimated rates of diffuse groundwater...

13. Color-Infra-Red Aerial Photography: Iowa, 1980s

1980. Iowa DNR. This data represents a color-infrared (CIR) county orthophoto mosaic in MrSID image format produced from CIR aerial photographs of a particular Iow...

14. Crops for 2001, Derived from National Agricultural Statistics Service: Indiana, 2002

2002. United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS), Research and Development Division, Geospatial Information Branch, Spatial Analysis Research Section (SARS). The following is excerpted from the metadata provided by NASS (USDA) for the source data set IN01NASS.TIF: The USDA-NASS 2001 Indiana Cropland Data...

15. Crops for 2002, Derived from National Agricultural Statistics Service: Indiana, 2003

2003. United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS), Research and Development Division, Geospatial Information Branch, Spatial Analysis Research Section (SARS). The following is excerpted from the metadata provided by NASS (USDA) for the source data set IN02NASS.TIF: The USDA-NASS 2002 Indiana Cropland Data...

16. Crops for 2003, Derived from National Agricultural Statistics Service: Indiana, 2004

2004. United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS), Research and Development Division, Geospatial Information Branch, Spatial Analysis Research Section (SARS). The following is excerpted from the metadata provided by NASS (USDA) for the source data set IN03NASS.TIF: The USDA-NASS 2003 Indiana Cropland Data...

17. Crops for 2006, Derived from National Agricultural Statistics Service: Indiana, 2007

2007. United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS), Research and Development Division, Geospatial Information Branch, Spatial Analysis Research Section (SARS). The following is excerpted from the metadata provided by NASS (USDA) for the source data set CDL_AWIFS_R_IN_2006.tif: The USDA-NASS 2006 Indiana Cr...

18. Crops for 2008, Derived from National Agricultural Statistics Service: Indiana, 2010

2010. United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS), Research and Development Division, Geospatial Information Branch, Spatial Analysis Research Section (SARS). The following is excerpted from the metadata provided by NASS (USDA) for the source data set CDL_AWIFS_R_IN_2008.tif: The USDA, NASS Cropland Data ...

19. Crops for 2009, Derived from National Agricultural Statistics Service: Indiana, 2013

2013. United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS), Research and Development Division, Geospatial Information Branch, Spatial Analysis Research Section (SARS). The following is excerpted from the metadata provided by NASS (USDA) for the source data set CDL_2009_CLIP_20131230093625_434373848.tif: The USDA, ...

20. Crops for 2010, Derived from National Agricultural Statistics Service: Indiana, 2013

2013. United States Department of Agriculture (USDA), National Agricultural Statistics Service (NASS), Research and Development Division, Geospatial Information Branch, Spatial Analysis Research Section (SARS). The following is excerpted from the metadata provided by NASS (USDA) for the source data set CDL_2010_CLIP_20131230093625_434373848.tif: The USDA, ...