Name
Abstract | ||
|---|---|---|
HJ-1A is one member of the Environment and Disaster Monitoring Microsatellite Constellation, which carries a HyperSpectral Imager (HSI) with the spectral resolution about 5nm from 450nm to 950nm. Retrieving columnar water vapor content is essential to the quantitative applications of hypespectral imagery. The ideal best band (940nm) for water vapor retrieval has lower signal-to-noise(S/N) value. In this paper, we choose another weak water absorption band (820nm) to retrieval the columnar water vapor content. Two common water vapor retrieval algorithms, called the Continuum Interpolated Band Ratio (CIBR) and the Atmospheric Precorrected Differential Absorption (APDA), are implemented and compared with each other. Simulation results show that these two algorithms have less difference in the accuracy of water vapor retrieval because the weak water vapor absorption effect in 820nm The water vapor contents derived from HJ-1A HSI by CIBR algorithm are compared with MODIS products and a systematic error may exist in the radiometric calibration of HSI. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/IGARSS.2011.6049570 | IGARSS |
Keywords | Field | DocType |
wavelength 820 nm,atmospheric humidity,remote sensing,columnar water vapor content,hyperspectral,atmospheric techniques,atmospheric optics,hyperspectral imager,hj-1a,cibr algorithm,environment and disaster monitoring microsatellite constellation,water vapor retrieval algorithm,h2o,radiometric calibration,water,weak water absorption band,continuum interpolated band ratio,radiometers,modis product,hypespectral imagery,atmospheric precorrected differential absorption,hj1a hyperspectral imagery,absorption,atmospheric modeling,water absorption,hyperspectral imagery,spectral resolution,water vapor,hyperspectral imaging,accuracy,systematic error | Atmospheric optics,Radiometric calibration,Computer science,Absorption of water,Remote sensing,Atmospheric model,Hyperspectral imaging,Spectral resolution,Water vapor,Radiometer | Conference |
Volume | Issue | ISSN |
null | null | 2153-6996 |
ISBN | Citations | PageRank |
978-1-4577-1003-2 | 0 | 0.34 |
References | Authors | |
2 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Hao Zhang | 1 | 1 | 2.45 |
| Zhengchao Chen | 2 | 22 | 10.85 |
| Bing Zhang | 3 | 422 | 74.10 |
| Dailiang Peng | 4 | 47 | 9.43 |