Huang, C., L. Yang, B. Wylie, and C. Homer, 2001. A strategy for estimating tree canopy density using Landsat 7 ETM+ and high resolution images over large areas. In: Third International Conference on Geospatial Information in Agriculture and Forestry; November 5-7, 2001; Denver, Colorado. CD-ROM, 1 disk.
The USGS acknowledges the support of MDA Federal Inc. in development of data in this zone.
The NLCD 2001 was created by partitioning the U.S. into mapping zones. A total of 66 mapping zones were delineated within the conterminous U.S. based on ecoregion and geographical characteristics, edge matching features and the size requirement of Landsat mosaics. Mapping zone 31 encompasses whole or portions of several states including the states of South Dakota and Nebraska. Questions about the NLCD mapping zone 31 can be directed to the NLCD 2001 land cover mapping team at the USGS/EROS, Sioux Falls, SD (605) 594-6151 or mrlc@usgs.gov.
Acquisition dates of Landsat ETM+ (TM) scenes used for land cover classification in this zone are as follows:
SPRING-
Index 1 for Path 29/Row 31 on 05/03/02 = Scene_ID 7029031000212350
Index 2 for Path 29/Row 32 on 05/13/00 = Scene_ID 7029032000013450
Index 3 for Path 30/Row 30 on 04/11/03 = Scene_ID 7030030000310150
Index 4 for Path 30/Row 31 on 05/04/00 = Scene_ID 7030031000012550
Index 4 for Path 30/Row 32 on 05/04/00 = Scene_ID 7030032000012550
Index 5 for Path 31/Row 29 on 05/01/99 = Scene_ID 5031029009912110
Index 6 for Path 31/Row 30 on 05/14/01 = Scene_ID 7031030000113450
Index 7 for Path 31/Row 31 on 04/28/01 = Scene_ID 7031031000111850
Index 8 for Path 31/Row 32 on 04/09/00 = Scene_ID 7031032000010050
Index 9 for Path 32/Row 29 on 05/02/00 = Scene_ID 7032029000012350
Index 9 for Path 32/Row 30 on 05/02/00 = Scene_ID 7032030000012350
Index 9 for Path 32/Row 31 on 05/02/00 = Scene_ID 7032031000012350
Index10 for Path 33/Row 29 on 05/12/01 = Scene_ID 7033029000113250
Index10 for Path 33/Row 30 on 05/12/01 = Scene_ID 7033030000113250
Index11 for Path 33/Row 31 on 04/13/02 = Scene_ID 7033031000210350
LEAF ON (Summer)-
Index 1 for Path 29/Row 31 on 06/30/00 = Scene_ID 7029031000018250
Index 2 for Path 29/Row 32 on 07/03/01 = Scene_ID 7029032000118450
Index 3 for Path 30/Row 30 on 08/08/00 = Scene_ID 7030030000022150
Index12 for Path 30/Row 30 on 08/24/00 = Scene_ID 7030030000023750
Index 4 for Path 30/Row 31 on 07/07/00 = Scene_ID 7030031000018950
Index 4 for Path 30/Row 32 on 07/07/00 = Scene_ID 7030032000018950
Index 5 for Path 31/Row 29 on 07/30/00 = Scene_ID 7031029000021250
Index 5 for Path 31/Row 30 on 07/30/00 = Scene_ID 7031030000021250
Index 6 for Path 31/Row 31 on 07/14/00 = Scene_ID 7031031000019650
Index 7 for Path 32/Row 29 on 07/03/02 = Scene_ID 5032029000218410
Index 8 for Path 32/Row 30 on 07/03/99 = Scene_ID 7032030009918450
Index 9 for Path 32/Row 31 on 08/06/00 = Scene_ID 7032031000021950
Index10 for Path 33/Row 29 on 07/12/00 = Scene_ID 7033029000019450
Index10 for Path 33/Row 30 on 07/12/00 = Scene_ID 7033030000019450
Index13 for Path 33/Row 30 on 09/20/02 = Scene_ID 7033030000226350
Index11 for Path 33/Row 31 on 07/28/00 = Scene_ID 7033031000021050
LEAF-OFF (Fall)-
Index 1 for Path 29/Row 31 on 09/21/01 = Scene_ID 7029031000126450
Index 1 for Path 29/Row 32 on 09/21/01 = Scene_ID 7029032000126450
Index 2 for Path 30/Row 30 on 10/25/99 = Scene_ID 7030030009929850
Index 3 for Path 30/Row 31 on 11/15/01 = Scene_ID 7030031000131950
Index 4 for Path 30/Row 32 on 09/12/01 = Scene_ID 7030032000125550
Index 5 for Path 31/Row 29 on 11/06/01 = Scene_ID 7031029000131050
Index 6 for Path 31/Row 30 on 10/18/00 = Scene_ID 7031030000029250
Index 6 for Path 31/Row 31 on 10/18/00 = Scene_ID 7031031000029250
Index 6 for Path 31/Row 32 on 10/18/00 = Scene_ID 7031032000029250
Index 7 for Path 32/Row 29 on 09/26/01 = Scene_ID 7032029000126950
Index 8 for Path 32/Row 30 on 10/09/00 = Scene_ID 7032030000028350
Index 9 for Path 32/Row 31 on 09/10/01 = Scene_ID 7032031000125350
Index10 for Path 33/Row 29 on 09/20/02 = Scene_ID 7033029000226350
Index11 for Path 33/Row 30 on 10/16/00 = Scene_ID 7033030000029050
Index11 for Path 33/Row 31 on 10/16/00 = Scene_ID 7033031000029050
Landsat data and ancillary data used for the tree canopy -
Data Type of DEM composed of 1 band of Continuous Variable Type.
Data Type of Slope composed of 1 band of Continuous Variable Type.
Data Type of Aspect composed of 1 band of Categorical Variable Type.
Data type of Position Index composed of 1 band of Continuous Variable Type.