This title appears in the Scientific Report :
2023
Please use the identifier:
http://dx.doi.org/10.5194/egusphere-egu23-9271 in citations.
Please use the identifier: http://dx.doi.org/10.34734/FZJ-2023-04944 in citations.
Long-term trends and radiative impact in vertically resolved stratospheric water vapour from ESA WV_cci data records
Long-term trends and radiative impact in vertically resolved stratospheric water vapour from ESA WV_cci data records
Water vapour in the upper troposphere and stratosphere has a significant impact both on theradiative and chemical properties of the atmosphere. Reliable water vapour climate data records(CDRs) are essential for use in climate research, to assess vertically resolved trends and associatedradiative imp...
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Personal Name(s): | Ye, Hao (Corresponding author) |
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Hegglin, Michaela / Hubert, Daan / Lambert, Jean-Christopher / Walker, Kaley / Sioris, Chris / Millan, Luis / Manney, Gloria / Froidevaux, Lucien / Kerridge, Brian / Siddans, Richard / Wang, Ray / Plummer, David / Krämer, Martina / Rolf, Christian / Shine, Keith | |
Contributing Institute: |
Stratosphäre; IEK-7 |
Imprint: |
2023
|
DOI: |
10.5194/egusphere-egu23-9271 |
DOI: |
10.34734/FZJ-2023-04944 |
Conference: | EGU General Asssembly 2023 Wien, Wien (Austria), 2023-04-24 - 2023-04-28 |
Document Type: |
Abstract |
Research Program: |
Climate Feedbacks |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.34734/FZJ-2023-04944 in citations.
Water vapour in the upper troposphere and stratosphere has a significant impact both on theradiative and chemical properties of the atmosphere. Reliable water vapour climate data records(CDRs) are essential for use in climate research, to assess vertically resolved trends and associatedradiative impacts. Within the ESA Water Vapour Climate Change Initiative (WV_cci), new verticallyresolved water vapour CDRs in the stratosphere and UTLS were merged from a range of satelliteobservations. In this contribution, we provide an overview of these CDRs, highlighting innovationsin the merging methodologies and results from a detailed quality assessment. In particular, thelong-term trends derived from the new water vapour CDRs are compared to other mergeddatasets, reanalyses, and simulations from chemistry-climate models, with the ESA WV_cci CDRsdeemed to be valuable new datasets for climate studies. We conclude that, mostly driven bydynamical variability, the derived water vapour trends vary significantly depending on the datasetused, chosen time period and location in the atmosphere. Using an off-line radiative transfermodel, we estimate the consequence of these differences on the radiative forcing from watervapour changes in the upper troposphere and stratosphere over the past 30+ years. |