TY - JOUR
T1 - Estimation of aerosol optical depth by applying the optimal distance number to NOAA AVHRR data
AU - Liu, Gin Rong
AU - Lin, Tang Huang
AU - Kuo, Tsung Hua
N1 - Funding Information:
This research was primarily supported by the Agricultural Council of ROC. The grant number was 87-RS-04(03). We also would like to thank Mr. Charlie C. K. Liang for his kindness in reviewing our English writing.
PY - 2002
Y1 - 2002
N2 - In order to correctly interpret the surface information with remotely sensed data, the extinction effects of the atmosphere must be appropriately removed. The aerosol optical depth (AOD) serves as an important parameter in describing this effect. Several factors, such as the satellite observation geometry, terrain geometry, temporal variation of canopy, and so forth, produce errors in the AOD estimation. This study strives to avoid such errors by introducing an "optimal distance number" into the structure function method that has been developed previously in estimating the AOD. The results of our experiment measured by a ground-based sunphotometer showed that the average errors of the estimated AOD values was reduced from 40% to 11% after the "optimal distance number" was used, indicating a significant improvement.
AB - In order to correctly interpret the surface information with remotely sensed data, the extinction effects of the atmosphere must be appropriately removed. The aerosol optical depth (AOD) serves as an important parameter in describing this effect. Several factors, such as the satellite observation geometry, terrain geometry, temporal variation of canopy, and so forth, produce errors in the AOD estimation. This study strives to avoid such errors by introducing an "optimal distance number" into the structure function method that has been developed previously in estimating the AOD. The results of our experiment measured by a ground-based sunphotometer showed that the average errors of the estimated AOD values was reduced from 40% to 11% after the "optimal distance number" was used, indicating a significant improvement.
UR - http://www.scopus.com/inward/record.url?scp=0036327379&partnerID=8YFLogxK
U2 - 10.1016/S0034-4257(02)00002-0
DO - 10.1016/S0034-4257(02)00002-0
M3 - 期刊論文
AN - SCOPUS:0036327379
SN - 0034-4257
VL - 81
SP - 247
EP - 252
JO - Remote Sensing of Environment
JF - Remote Sensing of Environment
IS - 2-3
M1 - 5671
ER -