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 Sanborn Map Company 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 13 encompasses whole or portions of several states including the states of California, Nevada, Utah and Arizona. Questions about the NLCD mapping zone 13 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 38/Row 34 on 04/26/00 = Scene_ID 7038034000011750
Index 2 for Path 38/Row 36 on 04/10/00 = Scene_ID 7038036000010150
Index 3 for Path 38/Row 37 on 03/25/00 = Scene_ID 7038037000008550
Index 4 for Path 39/Row 34 on 05/03/00 = Scene_ID 7039034000012450
Index 5 for Path 39/Row 35 on 04/01/00 = Scene_ID 7039035000009250
Index 5 for Path 39/Row 36 on 04/01/00 = Scene_ID 7039036000009250
Index 6 for Path 39/Row 37 on 03/22/02 = Scene_ID 7039037000208150
Index 7 for Path 40/Row 34 on 04/08/00 = Scene_ID 7040034000009950
Index 7 for Path 40/Row 35 on 04/08/00 = Scene_ID 7040035000009950
Index 8 for Path 40/Row 36 on 04/09/03 = Scene_ID 5040036000309910
Index 9 for Path 40/Row 37 on 02/25/02 = Scene_ID 7040037000205650
Index 7 for Path 41/Row 34 on 04/08/03 = Scene_ID 7041034000309850
Index 7 for Path 41/Row 35 on 04/08/03 = Scene_ID 7041035000309850
Index10 for Path 41/Row 36 on 03/04/02 = Scene_ID 7041036000206350
LEAF ON (Summer)-
Index 1 for Path 38/Row 34 on 05/31/01 = Scene_ID 7038034000115150
Index 2 for Path 38/Row 36 on 06/13/00 = Scene_ID 7038036000016550
Index 2 for Path 38/Row 37 on 06/13/00 = Scene_ID 7038037000016550
Index 3 for Path 39/Row 34 on 07/06/00 = Scene_ID 7039034000018850
Index 3 for Path 39/Row 35 on 07/06/00 = Scene_ID 7039035000018850
Index 3 for Path 39/Row 36 on 07/06/00 = Scene_ID 7039036000018850
Index 4 for Path 39/Row 37 on 06/07/01 = Scene_ID 7039037000115850
Index 5 for Path 40/Row 34 on 06/11/00 = Scene_ID 7040034000016350
Index 5 for Path 40/Row 35 on 06/11/00 = Scene_ID 7040035000016350
Index 6 for Path 40/Row 36 on 06/17/02 = Scene_ID 7040036000216850
Index 7 for Path 40/Row 37 on 06/14/01 = Scene_ID 7040037000116550
Index 8 for Path 41/Row 34 on 07/20/00 = Scene_ID 7041034000020250
Index 9 for Path 41/Row 35 on 07/26/02 = Scene_ID 7041035000220750
Index10 for Path 41/Row 36 on 06/08/02 = Scene_ID 7041036000215950
LEAF-OFF (Fall)-
Index 1 for Path 38/Row 34 on 11/02/99 = Scene_ID 7038034009930650
Index 2 for Path 38/Row 36 on 10/17/99 = Scene_ID 7038036009929050
Index 3 for Path 38/Row 37 on 10/01/99 = Scene_ID 7038037009927450
Index 4 for Path 39/Row 34 on 10/08/99 = Scene_ID 7039034009928150
Index 5 for Path 39/Row 35 on 10/24/99 = Scene_ID 7039035009929750
Index 5 for Path 39/Row 36 on 10/24/99 = Scene_ID 7039036009929750
Index 6 for Path 39/Row 37 on 10/27/03 = Scene_ID 5039037000330010
Index 7 for Path 39/Row 37 on 11/14/01 = Scene_ID 7039037000131850
Index 8 for Path 40/Row 34 on 10/15/99 = Scene_ID 7040034009928850
Index 9 for Path 40/Row 35 on 09/29/99 = Scene_ID 7040035009927250
Index10 for Path 40/Row 36 on 10/07/02 = Scene_ID 7040036000228050
Index11 for Path 40/Row 37 on 10/04/01 = Scene_ID 7040037000127750
Index12 for Path 41/Row 34 on 10/08/00 = Scene_ID 7041034000028250
Index13 for Path 41/Row 35 on 09/20/99 = Scene_ID 7041035009926350
Index14 for Path 41/Row 36 on 09/06/00 = Scene_ID 7041036000025050
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.