دورية أكاديمية
Tropical Indo-Pacific SST influences on vegetation variability in eastern Africa.
| العنوان: | Tropical Indo-Pacific SST influences on vegetation variability in eastern Africa. |
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| المؤلفون: | Kim IW; Center for Climate Physics, Institute for Basic Science, Busan, Republic of Korea. iwkimi@pusan.ac.kr.; Pusan National University, Busan, Republic of Korea. iwkimi@pusan.ac.kr., Stuecker MF; Department of Oceanography and International Pacific Research Center, School of Ocean and Earth Science and Technology, University of Hawai'i at Mānoa, Honolulu, HI, USA., Timmermann A; Center for Climate Physics, Institute for Basic Science, Busan, Republic of Korea.; Pusan National University, Busan, Republic of Korea., Zeller E; Center for Climate Physics, Institute for Basic Science, Busan, Republic of Korea.; Pusan National University, Busan, Republic of Korea., Kug JS; Division of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang, Republic of Korea., Park SW; Division of Environmental Science and Engineering, Pohang University of Science and Technology, Pohang, Republic of Korea., Kim JS; Department of Evolutionary Biology and Environmental Studies, University of Zurich, Zurich, Switzerland. |
| المصدر: | Scientific reports [Sci Rep] 2021 May 17; Vol. 11 (1), pp. 10462. Date of Electronic Publication: 2021 May 17. |
| نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't |
| اللغة: | English |
| بيانات الدورية: | Publisher: Nature Publishing Group Country of Publication: England NLM ID: 101563288 Publication Model: Electronic Cited Medium: Internet ISSN: 2045-2322 (Electronic) Linking ISSN: 20452322 NLM ISO Abbreviation: Sci Rep Subsets: PubMed not MEDLINE; MEDLINE |
| أسماء مطبوعة: | Original Publication: London : Nature Publishing Group, copyright 2011- |
| مستخلص: | Mechanisms by which tropical Pacific and Indian Ocean sea surface temperatures (SST) influence vegetation in eastern Africa have not been fully explored. Here, we use a suite of idealized Earth system model simulations to elucidate the governing processes for eastern African interannual vegetation changes. Our analysis focuses on Tanzania. In the absence of ENSO-induced sea surface temperature anomalies in the Tropical Indian Ocean (TIO), El Niño causes during its peak phase negative precipitation anomalies over Tanzania due to a weakening of the tropical-wide Walker circulation and anomalous descending motion over the Indian Ocean and southeastern Africa. Resulting drought conditions increase the occurrence of wildfires, which leads to a marked decrease in vegetation cover. Subsequent wetter La Niña conditions in boreal winter reverse the phase in vegetation anomalies, causing a gradual 1-year-long recovery phase. The 2-year-long vegetation decline in Tanzania during an ENSO cycle can be explained as a double-integration of the local rainfall anomalies, which originate from the seasonally-modulated ENSO Pacific-SST forcing (Combination mode). In the presence of interannual TIO SST forcing, the southeast African precipitation and vegetation responses to ENSO are muted due to Indian Ocean warming and the resulting anomalous upward motion in the atmosphere. |
| References: | Science. 2019 Mar 1;363(6430):. (PMID: 30819937) Proc Natl Acad Sci U S A. 2013 Feb 12;110(7):2496-9. (PMID: 23341628) Sci Rep. 2015 Nov 16;5:16653. (PMID: 26567458) Geophys Res Lett. 2019 Jul 16;46(13):7643-7653. (PMID: 32440032) Science. 2011 Aug 5;333(6043):743-7. (PMID: 21817050) New Phytol. 2005 Feb;165(2):525-37. (PMID: 15720663) |
| تواريخ الأحداث: | Date Created: 20210518 Date Completed: 20210928 Latest Revision: 20210928 |
| رمز التحديث: | 20221213 |
| مُعرف محوري في PubMed: | PMC8129105 |
| DOI: | 10.1038/s41598-021-89824-x |
| PMID: | 34001960 |
| قاعدة البيانات: | MEDLINE |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 2045-2322 |
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| DOI: | 10.1038/s41598-021-89824-x |