| Title |
Exploring evapotranspiration dynamics over Sub-Sahara Africa (2000–2014)
|
|---|---|
| Published in |
Environmental Monitoring and Assessment, June 2018
|
| DOI | 10.1007/s10661-018-6780-6 |
| Pubmed ID | |
| Authors |
Christopher E. Ndehedehe, Onuwa Okwuashi, Vagner G. Ferreira, Nathan O. Agutu |
| Abstract |
Monitoring changes in evapotranspiration (ET) is useful in the management of water resources in irrigated agricultural landscapes and in the assessment of crop stress and vegetation conditions of drought-vulnerable regions. Information on the impacts of climate variability on ET dynamics is profitable in developing water management adaptation strategies. Such impacts, however, are generally unreported and not conclusively determined in some regions. In this study, changes in MODIS (Moderate Resolution Imaging Spectroradiometer)-derived ET (2000-2014) over large proportions of Sub-Sahara Africa (SSA) are explored. The multivariate analyses of ET over SSA showed that four leading modes of observed dynamics in ET, accounting for about 90% of the total variability, emanated mostly from some sections of the Sudano-Sahel and Congo basin. Based on Man-Kendall's statistics, significant positive trends (α = 0.05) in ET over the Central African Republic and most parts of the Sahel region were observed. Over much of the Congo basin nonetheless, ET showed significant (α = 0.05) distributions of widespread negative trends. These trends in ET were rather found to be consistent with observed changes in model soil moisture but not in all locations, perhaps due to inconsistent trends in maximum rainfall and land surface temperature. However, the results of spatio-temporal drought analysis confirm that the extensive ET losses in the Congo basin were somewhat induced by soil moisture deficits. Amidst other prominent drivers of ET, the dynamics of ET over the terrestrial ecosystems of SSA appear to be a more complex phenomenon that may transcend natural climate variations. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Australia | 1 | 50% |
| Unknown | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 57 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 57 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 10 | 18% |
| Student > Master | 9 | 16% |
| Researcher | 7 | 12% |
| Student > Bachelor | 5 | 9% |
| Lecturer | 4 | 7% |
| Other | 9 | 16% |
| Unknown | 13 | 23% |
| Readers by discipline | Count | As % |
|---|---|---|
| Environmental Science | 12 | 21% |
| Agricultural and Biological Sciences | 10 | 18% |
| Earth and Planetary Sciences | 9 | 16% |
| Engineering | 4 | 7% |
| Nursing and Health Professions | 2 | 4% |
| Other | 5 | 9% |
| Unknown | 15 | 26% |
Attention Score in Context
This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 19 June 2018.
All research outputs
#14,496,973
of 23,854,458 outputs
Outputs from Environmental Monitoring and Assessment
#1,212
of 2,748 outputs
Outputs of similar age
#179,047
of 331,764 outputs
Outputs of similar age from Environmental Monitoring and Assessment
#19
of 44 outputs
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So far Altmetric has tracked 2,748 research outputs from this source. They receive a mean Attention Score of 3.8. This one has gotten more attention than average, scoring higher than 54% of its peers.
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We're also able to compare this research output to 44 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 56% of its contemporaries.