ARCHIVES
VOL. 3, ISSUE 3 (2021)
Simulated aridity and climate related multi threats to the state of Telangana, south India
Authors
Dhanya P, Jagannathan R, Cuba Perumal, Sesha Srinivas Jonnalagadda, Geethalakshmi V
Abstract
Semi-arid areas of India are anticipated to face multitudes of climate change threats. The negative impacts can be felt both on natural and human ecosystems. The present study endeavors to project changes in climate and aridity conditions in the erstwhile Andhra Pradesh, South India under the IPCC high and medium emission scenarios RCP 8.5 and 4.5 respectively. The meteorological parameters such as temperature and precipitations were used to generate De Martonne Aridity Index, for assessing the changes in the spatial distribution of aridity. Model projections generated by HADGEM-ES model at 25 km resolution shows that aridity may be aggravated for the already arid and semi-arid tracks of north west part of Telangana. The city of Hyderabad shows a significant increase in temperatures and rise in drying trends in the mid of 21st century, indicating probability of water and heat related stresses. The drying trend may be attributed to rising single day extreme rainfall events and mean annual temperatures. There were also, extremely wet or flood events in the city. Hyderabad had recorded a Standardized Precipitation Index (SPI) value of +2.75 in the year 1975, marking it as a flood year. The years 1995(+1.95), 2005(+1.5), 2008(+1.61), 2010(+1.26) recorded as severely wet years and 1978, 1981, 1983, 1987, 1989 recorded a moderately wet years in the history of Hyderabad city. The year 2006, 2008, and 2016 have recorded record- breaking single day extreme rainfall of 218mm, 220mm and 215 mm respectively and associated flash floods in the city of Hyderabad in monsoon season. This paper reviews the state government schemes like Mission Kakatiya, Mission Bhageeratha and other river linking projects running in the state. It indicates the need to have robust and resilient action plans to tackle the combined challenge for meeting the water demands of the exponentially growing population. Multi-hazard risk reductions strategies must be envisaged in the state to achieve Intended Nationally Determined Contributions (INDCs) and Sustainable Development Goals (SDGs).
Download
Pages:78-84
How to cite this article:
Dhanya P, Jagannathan R, Cuba Perumal, Sesha Srinivas Jonnalagadda, Geethalakshmi V "Simulated aridity and climate related multi threats to the state of Telangana, south India ". International Journal of Ecology and Environmental Sciences, Vol 3, Issue 3, 2021, Pages 78-84
Download Author Certificate
Please enter the email address corresponding to this article submission to download your certificate.