Next Article in Journal
Combined Spectral and Spatial Modeling of Corn Yield Based on Aerial Images and Crop Surface Models Acquired with an Unmanned Aircraft System
Next Article in Special Issue
Sentinel-1 for Monitoring Reservoirs: A Performance Analysis
Previous Article in Journal
Landsat-8 Operational Land Imager Design, Characterization and Performance
Previous Article in Special Issue
Application of a Remote Sensing Method for Estimating Monthly Blue Water Evapotranspiration in Irrigated Agriculture
Article Menu

Export Article

Open AccessArticle
Remote Sens. 2014, 6(11), 10306-10334; doi:10.3390/rs61110306

Earth Observation Based Assessment of the Water Production and Water Consumption of Nile Basin Agro-Ecosystems

1
International Water Management Institute (IWMI), Colombo, Sri Lanka and Vientiane, Laos
2
UNESCO-IHE, 2611 AX Delft, The Netherlands
3
Delft University of Technology, 2628 CN Delft, The Netherlands
4
Earth Resources Observation and Science (EROS) Center, U.S. Geological Survey, Sioux Falls, SD 57198, USA
*
Author to whom correspondence should be addressed.
Received: 16 April 2014 / Revised: 17 September 2014 / Accepted: 18 October 2014 / Published: 24 October 2014
(This article belongs to the Special Issue Earth Observation for Water Resource Management in Africa)
View Full-Text   |   Download PDF [22048 KB, uploaded 25 November 2014]   |  

Abstract

The increasing competition for water resources requires a better understanding of flows, fluxes, stocks, and the services and benefits related to water consumption. This paper explains how public domain Earth Observation data based on Moderate Resolution Imaging Spectroradiometer (MODIS), Second Generation Meteosat (MSG), Tropical Rainfall Measurement Mission (TRMM) and various altimeter measurements can be used to estimate net water production (rainfall (P) > evapotranspiration (ET)) and net water consumption (ET > P) of Nile Basin agro-ecosystems. Rainfall data from TRMM and the Famine Early Warning System Network (FEWS-NET) RainFall Estimates (RFE) products were used in conjunction with actual evapotranspiration from the Operational Simplified Surface Energy Balance (SSEBop) and ETLook models. Water flows laterally between net water production and net water consumption areas as a result of runoff and withdrawals. This lateral flow between the 15 sub-basins of the Nile was estimated, and partitioned into stream flow and non-stream flow using the discharge data. A series of essential water metrics necessary for successful integrated water management are explained and computed. Net water withdrawal estimates (natural and humanly instigated) were assumed to be the difference between net rainfall (Pnet) and actual evapotranspiration (ET) and some first estimates of withdrawals—without flow meters—are provided. Groundwater-dependent ecosystems withdraw large volumes of groundwater, which exceed water withdrawals for the irrigation sector. There is a strong need for the development of more open-access Earth Observation databases, especially for information related to actual ET. The fluxes, flows and storage changes presented form the basis for a global framework to describe monthly and annual water accounts in ungauged river basins. View Full-Text
Keywords: Nile Basin; evapotranspiration; rainfall; remote sensing; water production; water consumption; water accounting Nile Basin; evapotranspiration; rainfall; remote sensing; water production; water consumption; water accounting
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Bastiaanssen, W.G.; Karimi, P.; Rebelo, L.-M.; Duan, Z.; Senay, G.; Muthuwatte, L.; Smakhtin, V. Earth Observation Based Assessment of the Water Production and Water Consumption of Nile Basin Agro-Ecosystems. Remote Sens. 2014, 6, 10306-10334.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Remote Sens. EISSN 2072-4292 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top