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Comparison of Spectral Characteristics Between China HJ1-CCD and Landsat 5 TM Imagery.
- Source :
- IEEE Journal of Selected Topics in Applied Earth Observations & Remote Sensing; Feb2013, Vol. 6 Issue 1, p139-148, 10p
- Publication Year :
- 2013
-
Abstract
- The Landsat 5 mission is in jeopardy. Therefore, the United States Geological Survey (USGS) is exploring ways to alleviate a data gap if both Landsat 5 and 7 missions fail prior to the planned launch of Landsat 8 (known as the Landsat Data Continuity Mission) in 2013 [Randy, 2012]. Using the Chinese HJ1-CCD remote sensing data, analyses were performed on the spectral signature of these two different sensors to investigate the substitution of existing sensors for Landsat 5 TM in certain fields of research. In particular, a comparison was made between Landsat 5 TM and the HJ1-CCD in terms of orbital parameters, imaging features and spectral response characteristics, among other characteristics. Thereafter, a comparative analysis was performed on the “at-satellite” reflectance of nine pairs of remote sensing images of different land cover in China, and a mutual quantitative relationship was established. The results indicate that Landsat 5 TM and HJ1-CCD have similar orbital parameters, and the latter has a higher time resolution with advantages in its breadth and the quantity of sensors, although both have the same spatial resolution. Regarding the imaging and spectral response characteristics, although the at-satellite reflectance of HJ1-CCD is different from that of Landsat 5 TM for red, green, blue and near infra-red bands, there is still a broad correlation between HJ1-CCD and Landsat 5 TM, and the coefficient of determination approaches unity. Therefore, a mutual complementation and substitution of the at-satellite reflectance between HJ1-CCD and Landsat 5 TM images is feasible. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 19391404
- Volume :
- 6
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- IEEE Journal of Selected Topics in Applied Earth Observations & Remote Sensing
- Publication Type :
- Academic Journal
- Accession number :
- 86172473
- Full Text :
- https://doi.org/10.1109/JSTARS.2012.2206800