[Cross-comparison between ASTER and Landsat-7 ETM+ multispectral imagery]
Chun-hua Li1, Han-qiu Xu, Li-cong Chen
1College of Environment and Resources, Fuzhou University, Fuzhou 350108, China. lchfzfj@yahoo.com.cn
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|November 26, 2010
Summary
This study cross-compares Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and Landsat-7 Enhanced Thematic Mapper Plus (ETM+) imagery. It establishes accurate relation equations for corresponding sensor bands, crucial for remote sensing data fusion.
Area of Science:
- Earth Observation
- Remote Sensing
- Sensor Technology
Context:
- Cross-comparison of ASTER and Landsat-7 ETM+ imagery is novel.
- Utilizes synchronization images and common ground regions for analysis.
Purpose:
- To conduct a complementary study between ASTER and Landsat-7 ETM+ sensors.
- To establish relation equations between corresponding VNIR and SWIR bands.
- To validate the accuracy of derived relation equations and matching coefficients.
Summary:
- Compares sensor characteristics: orbit, scanning mode, and spectral properties.
- Derives relation equations for VNIR and SWIR bands using apparent reflectance.
- Validation confirms high accuracy of the developed band relation equations.
Impact:
- Enables improved data fusion between ASTER and Landsat-7 ETM+.
- Provides accurate cross-calibration for multisensor remote sensing applications.
- Enhances the utility of satellite imagery in Earth science research.
Related Concept Videos
01:13Attenuated Total Reflectance (ATR) Infrared Spectroscopy: Overview
Attenuated total reflectance (ATR) infrared spectroscopy is a powerful analytical technique used to study the composition of materials. It is widely employed in chemistry, materials science, forensic science, and other fields where sample characterization is required. ATR has several advantages over traditional transmission IR spectroscopy, including the requirement of little to no sample preparation and the ability to analyze a wide range of samples.
The ATR process begins by directing a beam...
The ATR process begins by directing a beam...
02:16Light Acquisition
In order to produce glucose, plants need to capture sufficient light energy. Many modern plants have evolved leaves specialized for light acquisition. Leaves can be only millimeters in width or tens of meters wide, depending on the environment. Due to competition for sunlight, evolution has driven the evolution of increasingly larger leaves and taller plants, to avoid shading by their neighbors with contaminant elaboration of root architecture and mechanisms to transport water and nutrients.