Combination of MODIS Vegetation Indices, GRACE Terrestrial Water Storage Changes, and In-Situ Measurements for Drought Assessment in Cagayan River Basin, Philippines

Abstract: The Philippines is experiencing recurring drought events accentuated by the increasing incidence of the El Niño phenomenon, particularly due to its position in the equatorial region. To address the negative effects of unpredicted drought events, especially in light of perceptible climate change, the present research developed a methodology for drought assessment in the Cagayan River Basin (CRB) by combining remotely-sensed data including 16-day MODIS Vegetation Indices (VIs) (250 m resolution), monthly Terrestrial Water Storage Changes (TWSC) in 1° grids from NASA’s Gravity Recovery and Climate Experiment (GRACE), and daily in-situ measurements of rainfall and water levels. Time series data of these parameters from 2002 to 2011, a period when major and minor drought events occurred in the country, were statistically analyzed. To smooth out short-term and random variations in the individual time series, a 3-period running average was first applied to each time series. The resulting .... https://journals.ub.uni-koeln.de/index.php/JNRD/article/view/751

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• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: Combination of MODIS Vegetation Indices, GRACE Terrestrial Water Storage Changes, and In-Situ Measurements for Drought Assessment in Cagayan River Basin, Philippines ; volume:7 ; year:2017 ; Journal of natural resources and development ; 7 (2017)

Contributors, Places and Time

• Creator: Mae C. Perez, Anjillyn ; Blanco, Ariel C.

Further information

• DOI: 10.5027/jnrd.v7i0.06
• URN: urn:nbn:de:101:1-2022053111553581195780
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.