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 52 encompasses whole or portions of several states including the states of Ohio, Indiana, and Michigan. Questions about the NLCD mapping zone 52 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 19/Row 31 on 03/04/00 = Scene_ID 7019031000006450
Index 1 for Path 19/Row 32 on 03/04/00 = Scene_ID 7019032000006450
Index 2 for Path 19/Row 33 on 04/05/00 = Scene_ID 7019033000009650
Index 3 for Path 20/Row 31 on 04/13/03 = Scene_ID 5020031000310310
Index 3 for Path 20/Row 31 on 04/13/03 = Scene_ID 5020031000310310
Index 4 for Path 20/Row 33 on 03/14/01 = Scene_ID 7020033000107350
Index 5 for Path 21/Row 31 on 03/21/01 = Scene_ID 7021031000108050
Index 6 for Path 21/Row 32 on 04/12/03 = Scene_ID 7021032000310250
Index 7 for Path 21/Row 33 on 04/30/01 = Scene_ID 5021033000112010
Index 8 for Path 22/Row 31 on 03/25/00 = Scene_ID 7022031000008550
Index 9 for Path 22/Row 32 on 04/29/01 = Scene_ID 7022032000111950
Index 9 for Path 22/Row 33 on 04/29/01 = Scene_ID 7022033000111950
LEAF ON (Summer)-
Index 1 for Path 19/Row 31 on 07/16/02 = Scene_ID 7019031000219750
Index 2 for Path 19/Row 32 on 06/25/03 = Scene_ID 5019032000317610
Index 3 for Path 19/Row 33 on 06/19/01 = Scene_ID 5019033000117010
Index 4 for Path 20/Row 31 on 07/15/02 = Scene_ID 5020031000219610
Index 5 for Path 20/Row 32 on 08/21/01 = Scene_ID 7020032000123350
Index13 for Path 20/Row 32 on 11/04/99 = Scene_ID 7020032009930850
Index 6 for Path 20/Row 33 on 08/16/99 = Scene_ID 7020033009922850
Index 7 for Path 21/Row 31 on 06/09/01 = Scene_ID 7021031000116050
Index 8 for Path 21/Row 32 on 07/11/01 = Scene_ID 7021032000119250
Index 9 for Path 21/Row 33 on 07/08/00 = Scene_ID 7021033000019050
Index10 for Path 22/Row 31 on 07/02/01 = Scene_ID 7022031000118350
Index11 for Path 22/Row 32 on 07/16/03 = Scene_ID 5022032000319710
Index14 for Path 22/Row 32 on 06/16/01 = Scene_ID 7022032000116750
Index12 for Path 22/Row 33 on 08/01/03 = Scene_ID 5022033000321310
LEAF-OFF (Fall)-
Index 1 for Path 19/Row 31 on 10/30/00 = Scene_ID 7019031000030450
Index 1 for Path 19/Row 32 on 10/30/00 = Scene_ID 7019032000030450
Index 2 for Path 19/Row 33 on 10/30/00 = Scene_ID 7019033000030450
Index 2 for Path 20/Row 31 on 11/04/99 = Scene_ID 7020031009930850
Index 3 for Path 20/Row 32 on 11/04/99 = Scene_ID 7020032009930850
Index 3 for Path 20/Row 33 on 11/09/01 = Scene_ID 7020033000131350
Index 4 for Path 21/Row 31 on 10/28/00 = Scene_ID 7021031000030250
Index 5 for Path 21/Row 32 on 10/31/01 = Scene_ID 7021032000130450
Index 5 for Path 21/Row 33 on 10/31/01 = Scene_ID 7021033000130450
Index 6 for Path 22/Row 31 on 10/19/00 = Scene_ID 7022031000029350
Index 6 for Path 22/Row 32 on 11/07/01 = Scene_ID 7022032000131150
Index 7 for Path 22/Row 33 on 11/07/01 = Scene_ID 7022033000131150
Index 2 for Path 20/Row 31 on 11/04/99 cloud replacement
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.