Name
Title | ||
|---|---|---|
First Global Analysis of Saturation Artifacts in the VIIRS Infrared Channels and the Effects of Sample Aggregation |
Abstract | ||
|---|---|---|
Unlike previous spaceborne Earth observing sensors, the Visible Infrared Imaging Radiometer Suite (VIIRS) employs onboard sample aggregation to reduce downlink bandwidth requirements and preserve spatial resolution across the scan. To examine the potentially deleterious impacts of onboard sample aggregation when encountering detector saturation, nearly four months of the National Oceanic and Atmospheric Administration's Nightfire product are analyzed, which contains a subset of the hottest observed nighttime pixels. An empirical method for identifying saturation is devised. The M12 band (3.69 μm) is the most frequently saturating band with 0.15% of the Nightfire pixels at or near the ~359-K detector saturation limit; some saturation is also found in M14, M15, and M16 (8.58, 10.74, and 11.86 μm). Artifacts consistent with detector saturation are seen with M12 temperatures as low as 330 K in the scene center. This partial saturation and aggregation influence must be considered when using VIIRS radiances for quantitative characterization of hot emission sources such as fires and gas flaring. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/LGRS.2015.2392098 | Geoscience and Remote Sensing Letters, IEEE |
Keywords | Field | DocType |
geophysical techniques,image resolution,infrared imaging,radiometry,remote sensing,wildfires,m12 band,m12 temperature,national oceanic and atmospheric administration nightfire product,viirs infrared channel,viirs radiance,visible infrared imaging radiometer suite,detector saturation,downlink bandwidth requirement reduction,gas flaring,hot emission sources,nighttime pixels,onboard sample aggregation,saturation artifacts,spaceborne earth observing sensors,spatial resolution,wavelength 10.74 mum,wavelength 11.86 mum,wavelength 3.69 mum,wavelength 8.58 mum,fires,suomi national polar-orbiting partnership (s-npp),visible infrared imaging radiometer suite (viirs),infrared measurements,nightfire,sample aggregation,saturation,sociology,statistics,detectors | Saturation (chemistry),Remote sensing,Optics,Bandwidth (signal processing),Radiometry,Pixel,Infrared,Detector,Image resolution,Mathematics,Visible Infrared Imaging Radiometer Suite | Journal |
Volume | Issue | ISSN |
12 | 6 | 1545-598X |
Citations | PageRank | References |
2 | 0.45 | 3 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Thomas N. Polivka | 1 | 2 | 0.45 |
| E. J. Hyer | 2 | 11 | 3.16 |
| Wang, J. | 3 | 9 | 3.51 |
| David A. Peterson | 4 | 2 | 0.45 |