Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/joc.6103 |
Inter-annual hydroclimatic variability in coastal Tanzania | |
Rohli, Robert, V1; Ates, Sara A.1; Rivera-Monroy, Victor H.1; Polito, Michael J.1; Midway, Stephen R.1; Castaneda-Moya, Edward1; Gold, Arthur J.2; Uchida, Emi3; Mangora, Mwita M.4; Suwa, Makoto5 | |
2019-10-01 | |
发表期刊 | INTERNATIONAL JOURNAL OF CLIMATOLOGY |
ISSN | 0899-8418 |
EISSN | 1097-0088 |
出版年 | 2019 |
卷号 | 39期号:12页码:4736-4750 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Tanzania |
英文摘要 | Climatic controls regulate the coupled natural and human systems in coastal Tanzania, where mangrove wetlands provide a wealth of ecosystem services to coastal communities. Previous research has explained the precipitation seasonality of eastern Africa in terms of the local monsoons. This research examines a wider range of hydroclimatic variables, including water vapour flux, evapotranspiration, runoff, and ocean salinity, and the sources of low-frequency atmosphere-ocean variability that support mangrove productivity and associated ecosystem services. Results confirm previous work suggesting that the northeast monsoon (kaskazi) largely corresponds to the "short rains" of October-December and extends through February, while the southeast monsoon (kusi) corresponds to the "long rains" of March-May and the drier June-September. The Indian Ocean Dipole (IOD) and, to a lesser extent, El Nino-Southern Oscillation (ENSO) are important modulators not only of precipitation (as has been shown previously) but also of water vapour flux, evapotranspiration, runoff, and salinity variability. During kaskazi, positive (negative) hydroclimatic anomalies occur during positive (negative) IOD, with a stronger IOD influence occurring during its positive phase, when seasonal anomalies of precipitation, evapotranspiration, and runoff exceed +50, 25, and 100%, and nearby salinity decreases by 0.5 practical salinity units. During kusi, the contrast between the positive and negative IOD modes is subtler, and the pattern is dictated more by variability in "long rains" months than in the dry months. The coincidence of the positive IOD and El Nino amplify this hydroclimatic signal. Because previous work suggests the likelihood of increased tendency for positive IOD and increased moisture variability associated with El Nino events in the future, wetter conditions may accompany the kaskazi, with less change expected during the kusi. These results advance understanding of the key environmental drivers controlling mangrove productivity and wetland spatial distribution that provide ecosystem services essential to the well-being of the human population. |
英文关键词 | climate mangroves observational data analysis ocean rainfall seasonal Tanzania teleconnections Tropics |
领域 | 气候变化 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000489003100011 |
WOS关键词 | INDIAN-OCEAN DIPOLE ; HOLOCENE MANGROVE DYNAMICS ; MT. KILIMANJARO ; EL-NINO ; RAINFALL ; CLIMATE ; FOREST ; AFRICA ; EAST ; CONSERVATION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/187398 |
专题 | 气候变化 |
作者单位 | 1.Louisiana State Univ, Coll Coast & Environm, Dept Oceanog & Coastal Sci, Baton Rouge, LA 70803 USA; 2.Univ Rhode Isl, Dept Nat Resources Sci, Kingston, RI 02881 USA; 3.Univ Rhode Isl, Dept Environm & Nat Resource Econ, Kingston, RI 02881 USA; 4.Univ Dar Es Salaam, Inst Marine Sci, Zanzibar, Tanzania; 5.World Bank, Global Facil Disaster Reduct & Recovery, 1818 H St NW, Washington, DC 20433 USA |
推荐引用方式 GB/T 7714 | Rohli, Robert, V,Ates, Sara A.,Rivera-Monroy, Victor H.,et al. Inter-annual hydroclimatic variability in coastal Tanzania[J]. INTERNATIONAL JOURNAL OF CLIMATOLOGY,2019,39(12):4736-4750. |
APA | Rohli, Robert, V.,Ates, Sara A..,Rivera-Monroy, Victor H..,Polito, Michael J..,Midway, Stephen R..,...&Suwa, Makoto.(2019).Inter-annual hydroclimatic variability in coastal Tanzania.INTERNATIONAL JOURNAL OF CLIMATOLOGY,39(12),4736-4750. |
MLA | Rohli, Robert, V,et al."Inter-annual hydroclimatic variability in coastal Tanzania".INTERNATIONAL JOURNAL OF CLIMATOLOGY 39.12(2019):4736-4750. |
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