Big Ten Academic Alliance Geospatial Discovery Portal

Big Ten Academic Alliance Geoportal

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You searched for: Format Raster Dataset Remove constraint Format: Raster Dataset Time Period 1950-1999 Remove constraint Time Period: 1950-1999
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1.
Aerial Photography Counties: Iowa, 1950s

Aerial Photography Counties: Iowa, 1950s

1950. Iowa Department of Natural Resources. 1950s Aerial Photography of Iowa County dataset in a zipped file.

2.
Aerial Photography Counties: Iowa, 1960s

Aerial Photography Counties: Iowa, 1960s

1960. Iowa Department of Natural Resources. 1960s Aerial Photography of Iowa County Dataset in a zipped file.

3.
Aerial Photography Counties: Iowa, 1970s

Aerial Photography Counties: Iowa, 1970s

1970. Iowa Department of Natural Resources. 1970s Aerial Photography of Iowa Each zip file contains a county raster dataset.

4.
CIR Aerial Photography Counties: Iowa, 1980s

CIR Aerial Photography Counties: Iowa, 1980s

1980. Iowa Department of Natural Resources. 1980s Color-Infra-Red Aerial Photography of Iowa Each zip file contains a County-wide dataset.

5.
Raster

DEM (30m): Wisconsin, 1998

1990-2000. United States Geological Survey. This Grid-format Digital Elevation Model (DEM) is a raster representation of land elevation of Wisconsin. This DEM ('demgw930') is derived from the...

6.
Digital Elevation Model (DEM) at 1:250,000: Illinois, 2006

Digital Elevation Model (DEM) at 1:250,000: Illinois, 2006

1994. Abert, Curtis C. This raster dataset consists of edge-matched USGS 1:250,000 DEM tiles for Illinois. Cell size is 301 feet and cell values are elevations in meters ...

7.
Digital Orthophoto Quadrangle (DOQ) Data: Illinois, 1998 - 2001

Digital Orthophoto Quadrangle (DOQ) Data: Illinois, 1998 - 2001

1998-2001. U.S. Geological Survey. This is a collection of tile-by-tile NAPP-III DOQs (1998-2001) images in MrSID format for the state of Illinois, in UTM Zones 15 and 16, NAD83. Ort...

8.
Raster

Land Cover Change in Iowa from 1984 - 2003

1984-2003. Change Detection GRID for the period 1985 to 2002 in the State of Iowa developed from Landsat Imagery. This zip file contains a raster dataset (ESR...

9.
Raster

Land Cover Change in Iowa from 1990 - 2003

1990-2003. Change Detection GRID for the period 1990 to 2002 in the State of Iowa developed from Landsat Imagery.

10.
Raster

Land Cover of the State of Iowa in the Years 1984-86

1984-86. Iowa Department of Natural Resources. Land Cover of Iowa in From 1984 to 2003 This zip file contains a 15-meter ESRI GRID of the Land Cover of Iowa.

11.
Raster

Land Cover of the State of Iowa in the Years 1989-91

1989-91. Land cover / Land use classification of the Iowa landscape derived from satellite imagery collected between 1989 and 1991. This zip file is a 15 m...

12.
Raster

Land Cover Persistence from 1984-2003: Iowa

1984-2003. Persistence of Land Cover Classes for the State of Iowa in the Years 1984-2002 This zip file contains a 15-meter raster dataset (ESRI GRID).

13.
Purdue Campus: West Lafayette, Indiana, 1959

Purdue Campus: West Lafayette, Indiana, 1959

1959. Purdue University Libraries. The Purdue historical campus map collection was scanned and georeferenced by Purdue University Libraries. The physical maps were collected as Purdu...

14.
Purdue Campus: West Lafayette, Indiana, 1962

Purdue Campus: West Lafayette, Indiana, 1962

1962. Purdue University Libraries. The Purdue historical campus map collection was scanned and georeferenced by Purdue University Libraries. The physical maps were collected as Purdu...

15.
Purdue Campus: West Lafayette, Indiana, 1968

Purdue Campus: West Lafayette, Indiana, 1968

1968. Purdue University Libraries. The Purdue historical campus map collection was scanned and georeferenced by Purdue University Libraries. The physical maps were collected as Purdu...

16.
Purdue Campus: West Lafayette, Indiana, 1977

Purdue Campus: West Lafayette, Indiana, 1977

1977. Purdue University Libraries. The Purdue historical campus map collection was scanned and georeferenced by Purdue University Libraries. The physical maps were collected as Purdu...

17.
Purdue Campus: West Lafayette, Indiana, 1978

Purdue Campus: West Lafayette, Indiana, 1978

1978. Purdue University Libraries. The Purdue historical campus map collection was scanned and georeferenced by Purdue University Libraries. The physical maps were collected as Purdu...

18.
Purdue Campus: West Lafayette, Indiana, 1979

Purdue Campus: West Lafayette, Indiana, 1979

1979. Purdue University Libraries. The Purdue historical campus map collection was scanned and georeferenced by Purdue University Libraries. The physical maps were collected as Purdu...

19.
Purdue Campus: West Lafayette, Indiana, 1980

Purdue Campus: West Lafayette, Indiana, 1980

1980. Purdue University Libraries. The Purdue historical campus map collection was scanned and georeferenced by Purdue University Libraries. The physical maps were collected as Purdu...

20.
Purdue Campus: West Lafayette, Indiana, 1981

Purdue Campus: West Lafayette, Indiana, 1981

1981. Purdue University Libraries. The Purdue historical campus map collection was scanned and georeferenced by Purdue University Libraries. The physical maps were collected as Purdu...