ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 42 Issue 8 > 2016,42(8):971-979. DOI:10.7519/j.issn.1000-0526.2016.08.007 Prev Next
Research on Retrieval of Cloud Top Height Based on A-Train Data
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
An applicable method to retrieve cloud top height (CTH) is proposed. Using the ATrain data in 2007, CTH in low latitude area (15°S~15°N) is retrieved. Firstly, using the brightness temperatures at Channels 31 and 32 of MODIS, clouds are classified into three categories including opaque clouds, semitransparent clouds and transparent clouds based on SVM method with 90.6% accuracy. Then, the CTH of the three categories are retrieved by kernel regression.The root mean square errors (RMSE) are 0.95 km, 1.17 km and 1.27 km, respectively, compared with CloudSat 2BGEOPROFLIDAR product.The errors of the three categories of clouds all decrease after being classified. Lastly, three typical cases are analyzed. The algorithm could be carried out in other satellites containing infrared split window channels.
Keywords:
Project Supported:
Clc Number:
Mobile website
