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Open AccessArticle

Developing Land Use Land Cover Maps for the Lower Mekong Basin to Aid Hydrologic Modeling and Basin Planning

1
Science System and Applications, Inc. Consultant, 88384 Diamondhead Drive East, Diamondhead, MS 39525, USA
2
Hydrological Sciences Laboratory, NASA Goddard Space Flight Center, Mail Code 617, Greenbelt, MD 20771, USA
3
Spatial Sciences Laboratory, Department of Ecosystem Science and Management, Texas A&M University, College Station, TX 77843, USA
4
School of Earth Ocean and Environment, University of South Carolina, Columbia, SC 29208, USA
*
Author to whom correspondence should be addressed.
Remote Sens. 2018, 10(12), 1910; https://doi.org/10.3390/rs10121910
Received: 23 October 2018 / Revised: 16 November 2018 / Accepted: 20 November 2018 / Published: 29 November 2018
This paper discusses research methodology to develop Land Use Land Cover (LULC) maps for the Lower Mekong Basin (LMB) for basin planning, using both MODIS and Landsat satellite data. The 2010 MODIS MOD09 and MYD09 8-day reflectance data was processed into monthly NDVI maps with the Time Series Product Tool software package and then used to classify regionally common forest and agricultural LULC types. Dry season circa 2010 Landsat top of atmosphere reflectance mosaics were classified to map locally common LULC types. Unsupervised ISODATA clustering was used to derive most LULC classifications. MODIS and Landsat classifications were combined with GIS methods to derive final 250-m LULC maps for Sub-basins (SBs) 1–8 of the LMB. The SB 7 LULC map with 14 classes was assessed for accuracy. This assessment compared random locations for sampled types on the SB 7 LULC map to geospatial reference data such as Landsat RGBs, MODIS NDVI phenologic profiles, high resolution satellite data, and Mekong River Commission data (e.g., crop calendars). The SB 7 LULC map showed an overall agreement to reference data of ~81%. By grouping three deciduous forest classes into one, the overall agreement improved to ~87%. The project enabled updated regional LULC maps that included more detailed agriculture LULC types. LULC maps were supplied to project partners to improve use of Soil and Water Assessment Tool for modeling hydrology and water use, plus enhance LMB water and disaster management in a region vulnerable to flooding, droughts, and anthropogenic change as part of basin planning and assessment. View Full-Text
Keywords: land use land cover mapping; SWAT hydrologic modeling disaster management; water resource management; agricultural monitoring land use land cover mapping; SWAT hydrologic modeling disaster management; water resource management; agricultural monitoring
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MDPI and ACS Style

Spruce, J.; Bolten, J.; Srinivasan, R.; Lakshmi, V. Developing Land Use Land Cover Maps for the Lower Mekong Basin to Aid Hydrologic Modeling and Basin Planning. Remote Sens. 2018, 10, 1910.

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