Landsat-7 ETM+ as an observatory for land cover Initial radiometric and geometric comparisons with Landsat-5 Thematic Mapper
Landsat-7 ETM+ as an observatory for land cover Initial radiometric and geometric comparisons with Landsat-5 Thematic Mapper
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DOI：
10.1016/s0034-4257(01)00254-1
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发表时间：
2001-10-01
影响因子：
13.5
通讯作者：
Pak, E
中科院分区：
文献类型：
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作者：
Masek, JG;Honzak, M;Pak, E
Landsat-7 ETM+传感器比Landsat-4，5专题制图仪传感器有几项改进，包括增加光谱信息内容、提高大地测量精度、减少噪音、可靠校准、增加全色波段和提高热波段的空间分辨率。在本文中，我们提出了一些初步的比较Landsat-5 TM和Landsat-7 ETM+图像，以量化这些改进。我们发现，ETM+继续TM观测的记录，并在许多方面，大大提高了早期的传感器。具体的改进包括降低空间噪声水平，提高信息含量，系统校正产品的大地测量精度达到50-100英寸。这些改进可能对土地覆盖物制图和变化探测应用产生重大益处。(C)2001年由Elsevier Science Inc.出版All rights reserved.
The Landsat-7 ETM+ sensor offers several enhancements over the Landsat-4,5 Thematic Mapper (TM) sensor, including increased spectral information content, improved geodetic accuracy, reduced noise, reliable calibration, the addition of a panchromatic band, and improved spatial resolution of the thermal band. In this paper, we present some initial comparisons between Landsat-5 TM and Landsat-7 ETM+ imagery in order to quantify these improvements. We find that the ETM+ continues the record of TM observations, and, in many respects, substantially improves upon the earlier sensor. Specific improvements include lower spatial noise levels, improved information content, and geodetic accuracy of systematically corrected products to 50-100 in. These improvements are likely to have significant benefits for land-cover mapping and change detection applications. (C) 2001 Published by Elsevier Science Inc. All rights reserved.