Vijaya Kumar P.,Indian Central Research Institute for Dryland Agriculture |
Rao V.U.M.,Indian Central Research Institute for Dryland Agriculture |
Bhavani O.,Indian Central Research Institute for Dryland Agriculture |
Prasad R.,AICRP on Agrometeorology |
And 2 more authors.
Mausam | Year: 2015
To understand the climatic changes and variability in mid-Himalayan region, 22 to 28 years data on maximum and minimum temperatures and rainfall of Palampur, Bajaura, Dhaulakuan, Shimla and Salooni of Himachal Pradesh and Ranichauri of Uttarakhand were analysed. Highly significant positive trend (0.5 to 1.1 °C/decade) in annual maximum temperature at four locations, significant negative trend (-0.4 °C/decade) in annual minimum temperature at Ranichauri and highly significant increasing trend of rainfall (22 mm/year) at Shimla was observed. Maximum temperature in summer showed significant increasing trend at all the locations except Ranichauri. Maximum temperature showed significant increase in all the seasons at Shimla. During Rabi season, significant increasing trend in maximum temperature at Palampur, Bajaura and Shimla and significant decreasing trend in rainfall at Bajaura and Dhaulakuan was noticed. Both maximum and minimum temperatures in March registered significant increase decade after decade at most of the locations. At all the locations, temperature or rainfall related extreme events have not significantly increased or decreased continuously for the past three decades. Though peak of average temperature occurred one month earlier at Palampur, peak of rainfall occurred one month earlier at Ranichauri, Bajaura and Dhaulakuan and one month later at Shimla during the present time scale compared to the previous time scale. These climatic trends or variability may adversely affect the Rabi crops and positively affect the Kharif crops. © 2015, India Meteorological Department. All rights reserved.
Rajegowda M.B.,AICRP on Agrometeorology |
Soumya D.V.,AICRP on Agrometeorology |
Padmashri H.S.,AICRP on Agrometeorology |
Janardhana Gowda N.A.,AICRP on Agrometeorology |
Nagesha L.,AICRP on Agrometeorology
Journal of Agrometeorology | Year: 2014
Forecasting models were developed using twenty five years (1985-2009) of weather and yield data of ragi and groundnut of different districts of Karnataka State Models were validated for the years 2010 and 2011. Good agreements have been realized between the estimated and the observed yields for both ragi and groundnut crops with the similar trend of deviation at preharvest stage. The deviations of predicted yield were with in 10%. Hence, these models can be used for predicting ragi and groundnut yields of different districts of Karnataka. © 2014, Association of Agrometeorologists. All rights reserved.