1. Data set identification (Title)

NOAA AVHRR-based NDVI Data of China

2. Subject/keywords

NOAA AVHRR, 8km, NDVI, WinDisplay, Vegetation Index

3. Spatial reference

Projection: Albers Conic Equal-Area projection
Horizontal Units: Meters
Vertical Units: Meters
Spheroid: WGS84
Standard parallel 1: 27 00 00 North
Standard parallel 2: 45 00 00 North
Central meridian: 105 00 00 East
Latitude of Origin: 35 00 00 North
False Easting: 0.0000
False Northing: 0.0000

4. Location/Area

China, Hainan, Taiwan, North Korea, South Korea

5. Data set structure (Format)

ARC/INFO GRID Format

6. Source

NOAA AVHRR 8-km 10-day composite NDVI data
- This data set is part of the Pathfinder Land data set archived at the Goddard DAAC, 
  which was collected by the Advanced Very High Resolution Radiometer (AVHRR) 
  flown on NOAA-series satellites.
- Nominal orbit parameters for the NOAA-7, -9, -11, and -14 are

Launch date: 6/23/1981 (NOAA-7), 12/12/1984 (NOAA-9),
                    9/24/1988 (NOAA-11), 12/30/1994 (NOAA-14)

Daa date ranges:
       NOAA-7 Jul. 13, 1981 through Feb. 5, 1985
       NOAA-9 Feb. 6, 1985 through Nov. 7, 1988
       NOAA-11 Nov. 8, 1988 through Sep. 14, 1994
       NOAA-14 Jan. 3, 1995 through Dec. 31, 2000
       Note: 10-day periods that cross platform dates contain data from both platforms.

Orbit: Sun synchronous, near polar
Nominal altitue: 833 km
Inclination: 98.9 degreess
Orbital period: 102 minutes

7. Resolution

- 8000 meters

8. Time

Jul. 13, 1981 - Sep. 10, 1994
Jan. 3, 1994 - Sep. 31, 2001

9. Acknowledgments

NASA Goddard DAAC(Distributed Active Archive Center) AVHRR

10. Last updated

September 2003

11. Further information

Dr. X. Ben Wu
Landscape Ecology Laboratory
Dept. of Rangeland Ecology and Management
Texas A&M University
College Station, TX 77840-2126

Phone: 979-845-0352
FAX: 979-845-6430