Santosh Pathak, Mhalevonuo Chielie, Y Satish, B C Kusre
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引用次数: 0
Abstract
Rainfall plays a vital role in the field of agriculture as it affects agricultural production and associated economy. However, the changing trend of rainfall has become a global concern. So the study of changes in the trend of rainfall is necessary. In the present study, an innovative trend analysis method was adopted to assess the changing trend in the state of Nagaland. Data of 40 years was taken for performing the trend analysis using ITA. The entire process of trend change analysis was automated using Python programming. The analysis indicated that out of the 11 stations considered, three stations indicated a rising trend, eight indicated falling trends (annual), four rising and seven falling (monsoon), 0 rising and 11 falling (winter). The extent of trend change varied from –34.5 to 1.1. The spatial distribution of the trend change was also performed. It was observed that the southeast part of Nagaland’s rising trend was more pronounced compared to the southwest. The change was more prominent during the winter season followed by pre-monsoon and monsoon. The trend analysis is important for making appropriate water management decisions, such as water conservation in areas with falling trends and soil conservation in areas affected by rising trends.
期刊介绍：
The Journal of Earth System Science, an International Journal, was earlier a part of the Proceedings of the Indian Academy of Sciences – Section A begun in 1934, and later split in 1978 into theme journals. This journal was published as Proceedings – Earth and Planetary Sciences since 1978, and in 2005 was renamed ‘Journal of Earth System Science’.
The journal is highly inter-disciplinary and publishes scholarly research – new data, ideas, and conceptual advances – in Earth System Science. The focus is on the evolution of the Earth as a system: manuscripts describing changes of anthropogenic origin in a limited region are not considered unless they go beyond describing the changes to include an analysis of earth-system processes. The journal''s scope includes the solid earth (geosphere), the atmosphere, the hydrosphere (including cryosphere), and the biosphere; it also addresses related aspects of planetary and space sciences. Contributions pertaining to the Indian sub- continent and the surrounding Indian-Ocean region are particularly welcome. Given that a large number of manuscripts report either observations or model results for a limited domain, manuscripts intended for publication in JESS are expected to fulfill at least one of the following three criteria.
The data should be of relevance and should be of statistically significant size and from a region from where such data are sparse. If the data are from a well-sampled region, the data size should be considerable and advance our knowledge of the region.
A model study is carried out to explain observations reported either in the same manuscript or in the literature.
The analysis, whether of data or with models, is novel and the inferences advance the current knowledge.
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