TY  - JOUR
ID  - SisLab1609
UR  - https://eprints.uet.vnu.edu.vn/eprints/id/eprint/1609/
A1  - Nguyen, Thi Nhat Thanh
A1  - Bui, Quang Hung
A1  - Pham, Van Hung
A1  - Luu, Viet Hung
A1  - Chu, Duc Man
Y1  - 2015///
N2  - Particulate Matter (PM) pollution is one of the most important air quality concerns in Vietnam. In this study, we integrate ground-based measurements, meteorological and satellite data to map temporal PM concentrations at a 10 × 10 km grid for the entire of Vietnam. We specifically used MODIS Aqua and Terra data and developed statistically-significant regression models to map and extend the ground-based PM concentrations. We validated our models over diverse geographic provinces i.e., North East, Red River Delta, North Central Coast and South Central Coast in Vietnam. Validation suggested good results for satellite-derived PM2.5 data compared to ground-based PM2.5 (n = 285, r2 = 0.411, RMSE = 20.299 ?g m?3 and RE = 39.789%). Further, validation of satellite-derived PM2.5 on two independent datasets for North East and South Central Coast suggested similar results (n = 40, r2 = 0.455, RMSE = 21.512 ?g m?3, RE = 45.236% and n = 45, r2 = 0.444, RMSE = 8.551 ?g m?3, RE = 46.446% respectively). Also, our satellite-derived PM2.5 maps were able to replicate seasonal and spatial trends of ground-based measurements in four different regions. Our results highlight the potential use of MODIS datasets for PM estimation at a regional scale in Vietnam. However, model limitation in capturing maximal or minimal PM2.5 peaks needs further investigations on ground data, atmospheric conditions and physical aspects.
JF  - Environmental Research Letters
VL  - 9-10
SN  - ?1748-9326
TI  - Particulate matter concentration mapping from MODIS satellite data: a Vietnamese case study
AV  - none
ER  -