دورية أكاديمية
Reconciling historical changes in the hydrological cycle over land
| العنوان: | Reconciling historical changes in the hydrological cycle over land |
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| المؤلفون: | Sanaa Hobeichi, Gab Abramowitz, Anna M. Ukkola, Martin De Kauwe, Andy Pitman, Jason P. Evans, Hylke Beck |
| المصدر: | npj Climate and Atmospheric Science, Vol 5, Iss 1, Pp 1-9 (2022) |
| بيانات النشر: | Nature Portfolio, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Environmental sciences LCC:Meteorology. Climatology |
| مصطلحات موضوعية: | Environmental sciences, GE1-350, Meteorology. Climatology, QC851-999 |
| الوصف: | Abstract The sixth Intergovernmental Panel on Climate Change (IPCC) assessment report confirms that global warming drives widespread changes in the global terrestrial hydrological cycle, and that changes are regionally diverse. However, reported trends and changes in the hydrological cycle suffer from significant inconsistencies. This is associated with the lack of a rigorous observationally-based assessment of simultaneous trends in the different components of the hydrological cycle. Here, we reconcile these different estimates of historical changes by simultaneously analysing trends in all the major components of the hydrological cycle, coupled with vegetation greenness for the period 1980–2012. We use observationally constrained, conserving estimates of the closure of the hydrological cycle, combined with a data assimilation approach and observationally-driven uncertainty estimates. We find robust changes in the hydrological cycle across more than 50% of the land area, with evapotranspiration (ET) changing the most and precipitation (P) the least. We find many instances of unambiguous trends in ET and runoff (Q) without robust trends in P, a result broadly consistent with a “wet gets wetter, but dry does not get drier”. These findings provide important opportunities for water resources management and climate risk assessment over a significant fraction of the land surface where hydrological trends have previously been uncertain. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2397-3722 |
| Relation: | https://doaj.org/toc/2397-3722 |
| DOI: | 10.1038/s41612-022-00240-y |
| URL الوصول: | https://doaj.org/article/d90594bae3cf4f048d291b20da89517d |
| رقم الأكسشن: | edsdoj.90594bae3cf4f048d291b20da89517d |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 23973722 |
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| DOI: | 10.1038/s41612-022-00240-y |