Trend analysis of precipitation and temperature in Lahaul-Spiti district, Himachal Pradesh, India

Lahaul-Spiti district is a cold desert mountain, situated in the Trans-Himalayan region. The district has the lowest population density of 2 persons/km2 because of the harsh climate and rough topography that act as barriers to population growth. Specific knowledge of climate variability in the regio...

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Main Authors: Pankaj Kumar, Dhanjit Deka, Md. Arif Husain, Manish Kumar, Pandurang Choudhari, Shipra Singh, Azka Kamil, Abhishek Banerjee
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-02-01
Series:Frontiers in Climate
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Online Access:https://www.frontiersin.org/articles/10.3389/fclim.2024.1348132/full
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author Pankaj Kumar
Dhanjit Deka
Md. Arif Husain
Manish Kumar
Pandurang Choudhari
Shipra Singh
Azka Kamil
Abhishek Banerjee
author_facet Pankaj Kumar
Dhanjit Deka
Md. Arif Husain
Manish Kumar
Pandurang Choudhari
Shipra Singh
Azka Kamil
Abhishek Banerjee
author_sort Pankaj Kumar
collection DOAJ
description Lahaul-Spiti district is a cold desert mountain, situated in the Trans-Himalayan region. The district has the lowest population density of 2 persons/km2 because of the harsh climate and rough topography that act as barriers to population growth. Specific knowledge of climate variability in the region is limited. Hence, it is essential to study the trends of temperature and precipitation for the region and also its effects on sustainable development. The objective of this study is to investigate the variability of rainfall and temperature on a monthly, seasonal, and annual basis from 1981 to 2021. Precipitation and temperature data on a monthly, seasonal, and annual basis were acquired from the National Aeronautics and Space Administration (NASA) Langley Research Center’s POWER Project. The trends of precipitation and temperature were derived using the Mann–Kendall trend test and the slope of the regression line using Sen’s slope test. Subsequently, the maximum, minimum, mean, standard deviation (SD), and coefficient of variation (CV) of precipitation and temperature were computed to analyze the range of variation in them. The results showed a significant increasing trend in the monthly temperature of October (p-value 0.011) and December (p-value 0.05), which is below the alpha value 0.05. Similarly, an increasing trend in annual (p-value 0.000), seasonal (winter p-value 0.008 and summer p-value 0.003), and monthly (January p-value 0.030, April p-value 0.032, June p-value 0.004, July p-value 0.027, and August p-value 0.002) precipitation was observed as computed p-values are less than the significance level of alpha = 0.05. This glaciated region is most vulnerable to climate change because it is already a scarce region in the context of natural resources. Changes in the pattern of precipitation and temperature affect the socioeconomic structure of the region, affecting sectors such as agriculture, livestock, forestry, tourism, and human health. According to the perceptions of people, the temperature rise has accelerated the melting of glaciers and reduced the snow cover area. The increase in rainfall can lead to a higher incidence of mudflows, landslides, floods, and other related events, as the region is made up of sedimentary rocks. Thus, it is crucial to continuously monitor the trends in temperature and precipitation.
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spelling doaj-art-7219b5d4bc414842ae5a4ad29ecfdbc82025-02-10T06:48:59ZengFrontiers Media S.A.Frontiers in Climate2624-95532025-02-01610.3389/fclim.2024.13481321348132Trend analysis of precipitation and temperature in Lahaul-Spiti district, Himachal Pradesh, IndiaPankaj Kumar0Dhanjit Deka1Md. Arif Husain2Manish Kumar3Pandurang Choudhari4Shipra Singh5Azka Kamil6Abhishek Banerjee7Department of Geography, Delhi School of Economics, University of Delhi, New Delhi, IndiaDepartment of Geography, Gauhati University, Guwahati, Assam, IndiaDepartment of Geography, Shyama Prasad Mukherji College for Women, University of Delhi, New Delhi, IndiaDepartment of Geography, School of Basic Sciences, Central University of Haryana, Mahendergarh, IndiaDepartment of Geography, University of Mumbai, Mumbai, Maharashtra, IndiaDepartment of Geography, Miranda House, University of Delhi, New Delhi, IndiaDepartment of Geography, Kamala Nehru College, University of Delhi, New Delhi, IndiaState Key Laboratory of Cryospheric Sciences, Northwest Institute of Eco Environment and Resources, Chinese Academy of Sciences, Lanzhou, ChinaLahaul-Spiti district is a cold desert mountain, situated in the Trans-Himalayan region. The district has the lowest population density of 2 persons/km2 because of the harsh climate and rough topography that act as barriers to population growth. Specific knowledge of climate variability in the region is limited. Hence, it is essential to study the trends of temperature and precipitation for the region and also its effects on sustainable development. The objective of this study is to investigate the variability of rainfall and temperature on a monthly, seasonal, and annual basis from 1981 to 2021. Precipitation and temperature data on a monthly, seasonal, and annual basis were acquired from the National Aeronautics and Space Administration (NASA) Langley Research Center’s POWER Project. The trends of precipitation and temperature were derived using the Mann–Kendall trend test and the slope of the regression line using Sen’s slope test. Subsequently, the maximum, minimum, mean, standard deviation (SD), and coefficient of variation (CV) of precipitation and temperature were computed to analyze the range of variation in them. The results showed a significant increasing trend in the monthly temperature of October (p-value 0.011) and December (p-value 0.05), which is below the alpha value 0.05. Similarly, an increasing trend in annual (p-value 0.000), seasonal (winter p-value 0.008 and summer p-value 0.003), and monthly (January p-value 0.030, April p-value 0.032, June p-value 0.004, July p-value 0.027, and August p-value 0.002) precipitation was observed as computed p-values are less than the significance level of alpha = 0.05. This glaciated region is most vulnerable to climate change because it is already a scarce region in the context of natural resources. Changes in the pattern of precipitation and temperature affect the socioeconomic structure of the region, affecting sectors such as agriculture, livestock, forestry, tourism, and human health. According to the perceptions of people, the temperature rise has accelerated the melting of glaciers and reduced the snow cover area. The increase in rainfall can lead to a higher incidence of mudflows, landslides, floods, and other related events, as the region is made up of sedimentary rocks. Thus, it is crucial to continuously monitor the trends in temperature and precipitation.https://www.frontiersin.org/articles/10.3389/fclim.2024.1348132/fullLahaul-Spiticold desertprecipitationtemperatureseasonal trends
spellingShingle Pankaj Kumar
Dhanjit Deka
Md. Arif Husain
Manish Kumar
Pandurang Choudhari
Shipra Singh
Azka Kamil
Abhishek Banerjee
Trend analysis of precipitation and temperature in Lahaul-Spiti district, Himachal Pradesh, India
Frontiers in Climate
Lahaul-Spiti
cold desert
precipitation
temperature
seasonal trends
title Trend analysis of precipitation and temperature in Lahaul-Spiti district, Himachal Pradesh, India
title_full Trend analysis of precipitation and temperature in Lahaul-Spiti district, Himachal Pradesh, India
title_fullStr Trend analysis of precipitation and temperature in Lahaul-Spiti district, Himachal Pradesh, India
title_full_unstemmed Trend analysis of precipitation and temperature in Lahaul-Spiti district, Himachal Pradesh, India
title_short Trend analysis of precipitation and temperature in Lahaul-Spiti district, Himachal Pradesh, India
title_sort trend analysis of precipitation and temperature in lahaul spiti district himachal pradesh india
topic Lahaul-Spiti
cold desert
precipitation
temperature
seasonal trends
url https://www.frontiersin.org/articles/10.3389/fclim.2024.1348132/full
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