TY - JOUR
T1 - Estimation of regional surface resistance to evapotranspiration from NDVI and thermal-IR AVHRR data
AU - Nemani, R. R.
AU - Running, S. W.
PY - 1989
Y1 - 1989
N2 - We tested a hypothesis that the relationship between surface temperature and canopy density is sensitive to seasonal changes in canopy resistance of conifer forests. Surface temperature (Ts) and canopy density were computed for a 20×25 km forested region in Montana, from the NOAA/AVHRR for 8 days during the summer of 1985. A forest ecosystem model, FOREST-BGC, simulated canopy resistance (Rc) for the same period. For all eight days, surface temperatures had high association with canopy density, measured as Normalized Difference Vegetation Index (NDVI) (R2=0.73-0.91), implying that latent heat exchange is the major cause of spatial variations in surface radiant temperatures. -from Authors
AB - We tested a hypothesis that the relationship between surface temperature and canopy density is sensitive to seasonal changes in canopy resistance of conifer forests. Surface temperature (Ts) and canopy density were computed for a 20×25 km forested region in Montana, from the NOAA/AVHRR for 8 days during the summer of 1985. A forest ecosystem model, FOREST-BGC, simulated canopy resistance (Rc) for the same period. For all eight days, surface temperatures had high association with canopy density, measured as Normalized Difference Vegetation Index (NDVI) (R2=0.73-0.91), implying that latent heat exchange is the major cause of spatial variations in surface radiant temperatures. -from Authors
UR - http://www.scopus.com/inward/record.url?scp=0024850844&partnerID=8YFLogxK
U2 - 10.1175/1520-0450(1989)028<0276:EORSRT>2.0.CO;2
DO - 10.1175/1520-0450(1989)028<0276:EORSRT>2.0.CO;2
M3 - Article
AN - SCOPUS:0024850844
SN - 0894-8763
VL - 28
SP - 276
EP - 284
JO - Journal of Applied Meteorology
JF - Journal of Applied Meteorology
IS - 4
ER -