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@ARTICLE{Fadnavis:1018014,
      author       = {Fadnavis, Suvarna and Heinold, Bernd and Sabin, T. P. and
                      Kubin, Anne and Huang, Katty and Rap, Alexandru and Müller,
                      Rolf},
      title        = {{A}ir pollution reductions caused by the {COVID}-19
                      lockdown open up a way to preserve the {H}imalayan glaciers},
      journal      = {Atmospheric chemistry and physics},
      volume       = {23},
      number       = {18},
      issn         = {1680-7316},
      address      = {Katlenburg-Lindau},
      publisher    = {EGU},
      reportid     = {FZJ-2023-04484},
      pages        = {10439 - 10449},
      year         = {2023},
      abstract     = {The rapid melting of glaciers in the Hindu Kush Himalayas
                      (HKH) during recent decades poses an alarming threat to
                      water security for larger parts of Asia. If this melting
                      persists, the entirety of the Himalayan glaciers are
                      estimated to disappear by end of the 21st century. Here, we
                      assess the influence of the spring 2020 COVID-19 lockdown on
                      the HKH, demonstrating the potential benefits of a strict
                      emission reduction roadmap. Chemistry–climate model
                      simulations, supported by satellite and ground measurements,
                      show that lower levels of gas and aerosol pollution during
                      lockdown led to changes in meteorology and to a reduction in
                      black carbon in snow $(2 \%–14 \%)$ and thus a
                      reduction in snowmelt $(10 \%–40 \%).$ This caused
                      increases in snow cover $(6 \%–12 \%)$ and mass
                      $(2 \%–20 \%)$ and a decrease in runoff
                      $(5 \%–55 \%)$ over the HKH and Tibetan Plateau,
                      ultimately leading to an enhanced snow-equivalent water
                      $(2 \%–55 \%).$ We emphasize the necessity for
                      immediate anthropogenic pollution reductions to address the
                      hydro-climatic threat to billions of people in southern
                      Asia.},
      cin          = {IEK-7},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IEK-7-20101013},
      pnm          = {2112 - Climate Feedbacks (POF4-211)},
      pid          = {G:(DE-HGF)POF4-2112},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001161805100001},
      doi          = {10.5194/acp-23-10439-2023},
      url          = {https://juser.fz-juelich.de/record/1018014},
}