Analysing climatic variability and extremes events in the Himalayan regions focusing on mountainous urban agglomerations. Issue 26 (13th December 2022)

• Record Type: Journal Article
• Authors: Diksha, ; Kumar, Amit; Lal, Preet
• Is Part Of: Geocarto international. Volume 37:Issue 26(2023)
• Page Start: 14148
• Page End: 14170
• Publication Date: 2022-12-13
• Subjects: Extremes events -- ERA-5 & CRU -- Mann–Kendall & Sen's slope test -- trend analysis -- mountainous urban system; Remote sensing -- Periodicals; Geographic information systems -- Periodicals; Geology -- Periodicals; Cartography -- Periodicals; 621.3678
• DOI: 10.1080/10106049.2022.2086635
• Languages: English
• ISSNs: 1010-6049

Abstract

Abstract: The present study highlights the long-term variations in temperature and precipitation using time series datasets of CRU and ERA5-Land across the Himalayan region. The Mann-Kendall and Sen's slope-based trend analysis exhibited an apparent warming trend in the region, with higher increase in Tmin (1.5 °C) and comparatively lower increase in Tmax (0.8 °C) during 1901–2018. The joint CCl/WCRP/JCOMM based 19 extreme indices elucidated an increasing frequency of warm days (16%) in Central Himalayan urban agglomerations (HUAs) with a declining number of cold days (−6%) and cold nights (−4%) during 2000–2019. The moderate decline in the wet days (8%) and consecutive wet days (−5 days/20 years) observed in all HUAs compared to an increasing frequency of the consecutive dry days (3 days/20 years). Study reported higher warming in Kathmandu UA, while increased precipitation in Srinagar UA, and contributes to framing climate change adaptation and mitigation strategies in the mountainous system.