Abstract
The monthly nighttime light data observed by the Visible Infrared Imaging Radiometer Suite (VIIRS) sensor onboard the National Polar-orbiting Partnership (NPP) satellite are useful to assess human activities. However, noise in the VIIRS data and unstable power supply in many areas often limit its application in detecting anthropic activities. This study aims to develop a new method (i.e., Patches Denoising Method, PDM) to remove noise in the VIIRS monthly nighttime light data towards better information on anthropic activities. The new synthesized data were examined in the Sahel region where the intensity of nighttime light is often affected by unstable power supply. The results showed that the new data could capture more settlements correctly compared with the annual data released by the National Centers for Environmental Information (NCEI) of the National Oceanic and Atmospheric Administration (NOAA). This suggests that the Patches De-noising Method is a useful way to remove noise in the NPP-VIIRS monthly nighttime light data.
| Original language | English |
|---|---|
| Title of host publication | 2019 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Proceedings |
| Publisher | IEEE |
| Pages | 7467-7470 |
| Number of pages | 4 |
| ISBN (Electronic) | 9781538691540 |
| ISBN (Print) | 9781538691557 |
| DOIs | |
| Publication status | Published - 2019 |
| Event | 39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 - Yokohama, Japan Duration: 28 Jul 2019 → 2 Aug 2019 |
Conference
| Conference | 39th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2019 |
|---|---|
| Country/Territory | Japan |
| City | Yokohama |
| Period | 28/07/19 → 2/08/19 |
Keywords
- Human activity
- Nighttime Light
- NPP-VIIRS
- Sahel