Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s12524-011-0097-z |
Analysis of Seasonal Variability of Vegetation and Methane Concentration over India using SPOT-VEGETATION and ENVISAT-SCIAMACHY Data | |
Goroshi, Sheshakumar K.; Singh, R. P.; Panigrahy, S.; Parihar, J. S. | |
通讯作者 | Goroshi, Sheshakumar K. |
来源期刊 | JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING
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ISSN | 0255-660X |
EISSN | 0974-3006 |
出版年 | 2011 |
卷号 | 39期号:3页码:315-321 |
英文摘要 | This paper highlights the spatial and temporal variability of atmospheric columnar methane (CH4) concentration over India and its correlation with the terrestrial vegetation dynamics. SCanning IMaging Absorption spectrometer for Atmospheric CHartographY (SCIAMACHY) on board ENVIronmental SATellite (ENVISAT) data product (0.5A degrees x 0.5A degrees) was used to analyze the atmospheric CH4 concentration. Satellite Pour l’Observation de la Terre (SPOT)-VEGETATION sensor’s Normalized Difference Vegetation Index (NDVI) product, aggregated at 0.5A degrees aEuro parts per thousand x 0.5A degrees grid level for the same period (2004 and 2005), was used to correlate the with CH4 concentration. Analysis showed mean monthly CH4 concentration during the Kharif season varied from 1,704 parts per billion volume (ppbv) to 1,780 ppbv with the lowest value in May and the highest value in September. Correspondingly, mean NDVI varied from 0.28 (May) to 0.53 (September). Analysis of correlation between CH4 concentration and NDVI values over India showed positive correlation (r = 0.76; n = 6) in Kharif season. Further analysis using land cover information showed characteristic low correlation in natural vegetation region and high correlation in agricultural area. Grids, particularly falling in the Indo-Gangetic Plains showed positive correlation. This could be attributed to the rice crop which is grown as a predominant crop during this period. The CH4 concentration pattern matched well with growth pattern of rice with the highest concentration coinciding with the peak growth period of crop in the September. Characteristically low correlation was observed (r = 0.1; n = 6) in deserts of Rajasthan and forested Himalayan ecosystem. Thus, the paper emphasizes the synergistic use of different satellite based data in understanding the variability of atmospheric CH4 concentration in relation to vegetation. |
英文关键词 | Remote sensing Methane Vegetation SCIAMACHY NDVI CH4 Correlation Kharif |
类型 | Article |
语种 | 英语 |
国家 | India |
收录类别 | SCI-E |
WOS记录号 | WOS:000296518200005 |
WOS关键词 | EMISSIONS ; SATELLITE |
WOS类目 | Environmental Sciences ; Remote Sensing |
WOS研究方向 | Environmental Sciences & Ecology ; Remote Sensing |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/169465 |
作者单位 | ISRO, Ctr Space Applicat, Ahmadabad 380015, Gujarat, India |
推荐引用方式 GB/T 7714 | Goroshi, Sheshakumar K.,Singh, R. P.,Panigrahy, S.,et al. Analysis of Seasonal Variability of Vegetation and Methane Concentration over India using SPOT-VEGETATION and ENVISAT-SCIAMACHY Data[J],2011,39(3):315-321. |
APA | Goroshi, Sheshakumar K.,Singh, R. P.,Panigrahy, S.,&Parihar, J. S..(2011).Analysis of Seasonal Variability of Vegetation and Methane Concentration over India using SPOT-VEGETATION and ENVISAT-SCIAMACHY Data.JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING,39(3),315-321. |
MLA | Goroshi, Sheshakumar K.,et al."Analysis of Seasonal Variability of Vegetation and Methane Concentration over India using SPOT-VEGETATION and ENVISAT-SCIAMACHY Data".JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING 39.3(2011):315-321. |
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