Tracking Electrification in Vietnam Using Nighttime Lights

• Tác giả: Brian Min
• Ngôn ngữ: eng
• Ký hiệu phân loại: 628.95 Public lighting
• Thông tin xuất bản: MDPI, 2015
• Bộ sưu tập: Tài liệu truy cập mở
• ID: 306387
• Chủ đề: 1. electricity; 2. ground-truth; 3. night lights

Tóm tắt

We report on a systematic ground-based validation of DMSP-OLS night lights imagery to detect rural electrification in Vietnam. Based on an original survey of village-level units in Vietnam, this study compares nighttime light output from the U.S. Air Force Defense Meteorological Satellite Program's Operational Linescan System (DMSP-OLS) against ground-based survey data on electrical infrastructure and electricity use in 200 electrified villages. Monthly and annual composites record a one-point increase in brightness along DMSP-OLS's 63-point brightness scale for every 60-70 additional streetlights or 240-270 electrified homes. Using a time series of 90 nightly images, the data show a one-point increase in brightness for every 125-200 additional streetlights, or 550-700 additional electrified homes. The results highlight the potential to use night lights imagery to support efforts to connect the 1.2 billion people who lack electricity around the world.