학술논문

Calibration of the National Ecological Observatory Network's airborne imaging spectrometers
Document Type
Conference
Source
2014 IEEE Geoscience and Remote Sensing Symposium Geoscience and Remote Sensing Symposium (IGARSS), 2014 IEEE International. :2625-2628 Jul, 2014
Subject
Geoscience
Calibration
Radiometry
Laboratories
Observatories
Sensors
Imaging
Remote sensing
NEON
airborne remote sensing
ecological change
Language
ISSN
2153-6996
2153-7003
Abstract
The NEON Imaging Spectrometer (NIS) is a Visible and Shortwave Infrared (VSWIR) push-broom imaging instrument designed to collected spectroscopic imagery on the scale of individual vegetation species. The long-term accuracy and precision of the NIS calibration is important for the detection of changes across the NEON sites. To this end, NEON has developed a calibration facility to enable the consistent calibration of the NIS, through time, across multiple payloads. The NIS Design Verification Unit (NISDVU), NIS-1 and NIS-2 have gone through initial calibration in the NEON facility. Radiometric and spectral calibration methods and results derived in the NEON facility are verified through use of vicarious calibration techniques during flight operations. Early level-one datasets collected over a subset of the NEON sites have been produced using the determined radiometric and spectral calibration and verified through vicarious calibration methods.