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Trend Analysis of Temperature and Rainfall across Agro Climatic Zones of Karnataka-A Semi Arid State in India

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Title Trend Analysis of Temperature and Rainfall across Agro Climatic Zones of Karnataka-A Semi Arid State in India
 
Creator Seedari Ujwala Rani
Naveen P. Singh
Pramod Kumar
Rabindra Nath Padaria
Ranjit Kumar Paul
 
Subject Agro climatic zones
spatio temporal
rainfall anomaly index
drought indicator
 
Description The study was carried out for ten Agro climatic zones in Karnataka state in India. The temperature
and rainfall data were used for analysis from 1979-2019 which is about 40 years. Understanding
spatiotemporal rainfall pattern, Rainfall Anomaly Index which is drought indicator technique was
used to classify the positive and negative severities in rainfall anomalies. The RAI ranges below
0.2 are considered as dry zone. The analysis resulted that, all zones are falls in category of dry
zone with range of 0.2 to 0.4. For past five years, North Eastern Transition Zone was noted
maximum times falling in the range of RAI below 0.2 and near to zero. Statistical techniques like
linear trend estimation, R square was used for trend estimation across annual, seasonal to identify
the variation in the temperature across different zones. The meaningful statistically significant
achieves when there is r2≥0.65 and p≤0.05. It was analysed that, hilly Zone experienced decreased
trend in both minimum and maximum temperature in all seasons which ultimately reflected in
annual temperature to decrease with high R square values.
 
Date 2022-04-29T09:38:04Z
2022-04-29T09:38:04Z
2022-01-01
 
Type Research Paper
 
Identifier http://krishi.icar.gov.in/jspui/handle/123456789/71779
 
Language English
 
Publisher Not Available