Overview of the AVIRIS 2000 flight season
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AVIRIS overview flight season↗
Engineering topics
Chovit, C.
Publications and source records attributed to Chovit, C..
AVIRIS Investigator's Guide for High and Low Altitude Experiments
This guide serves as a brief overview of the AVIRIS instrument and its role in the field of imaging spectrometry.
AVIRIS hyperspectral remote sensing↗
Recent Improvements to the AVIRIS Sensor
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AVIRIS Sensor Earth Science Improvements↗
Operation Calibration Georectification and Reflectance Inversion of NASA's Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) Four- and Two-Meter Data Acquired from a Low-Altitude Platform
This paper presents key aspects of the implementation, operation, calibration, georectification, and validation of AVIRIS on a low-altitude platform in the Autumn of 1998.
AVIRIS Low Altitute Imaging Spectrometer↗
Inflight Validation of AVIRIS Calibration in 1996 and 1997
The Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) measures spectral radiance in the solar reflected spectrum from 400 to 2500 nm.
Airborne↗
In-Flight Calibration and Validation of the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS)
To validate AVIRIS in flight, and in-flight calibration experiment was performed for an over-flight on May 9, 1995, at Ivanpah Playa, California, USA. In-situ measurements were used to constrain a radiative transfer code and predict the total upwelling spectral radiance incident at AVIRIS.
AVIRIS↗
Innovative Imaging Spectrometer Calibration Techniques
A laboratory calibration of the Airborne Visible Infrared Imaging Spectrometer (AVIRIS) allowed experimentation with several innovative calibration techniques that would improve calibration accuracy, provide independent checks for systematic errors, and reduce the time required to collect a calibration data set.
remote sensing AVIRIS Airborne Visible Infrared Im↗
Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) Onboard Calibration System
The AVIRIS instrument uses an onboard calibration system to provide auxiliary calibration data. The system consists of tungsten halogen cycle lamp imaged onto a fiber bundle through an eight position filter wheel. The fiber bundle illuminates the back side of the foreoptics shutter during a pre-run and post-run calibration sequence. The filter wheel contains 2 neutral density filters, 5 spectral filters and blocked position.
spectrometer↗
Improvements to the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) Calibration System
As a continuing effort to increase the calibration accuracy of the AVIRIS data a number of recent improvements have been implemented and are in the process of being tested during the 1994 flight season. These include the following innovations: A direct observation of a laboratory radiance standard is now used to double check the wide field-of-view calibration via an integrating sphere source. Launch site field calibration of the AVIRIS sensor is now being planned to augment the laboratory and inflight calibration. Modification to a dry air conditioning unit has been made to enable ground calibration at flight operating temperatures. One hundred lines of dark imagery has been added to the end of each flight line to assist in the analysis and removal of residual coherent noise. The intensity of the onboard calibration lamp has been modified to improve response in the blue end of the spectrum. Novel spectral filters have been installed in the onboard calibration source.
Airborne Visible/Infrared Imaging Spectrometer Cal↗
Spectral, Radiometric and Geometric Calibration of the Airborne Visible-Infrared Imaging Spectrometer in the Laboratory and Validation of the Calibration Inflight
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spectral calibration radiometric calibration geome↗
High Altitude Hyperspectral Remote Sensing with AVIRIS
None given. From Intro: This paper describes AVIRIS (the Airborne Visible and InfraRed Imaging Spectrometer) as a remote sensing instrument that is supported, calibrated, and maintained by JPL.
AVIRIS detector fiberoptics remote sensing spectro↗
Airborne Visible/Infrared Imaging Spectrometer (AVIRIS): Recent Improvements to the Sensor
From the Introduction: AVIRIS is a NASA-sponsored Earth-looking imaging spectrometer designed, built and operated by the Jet Propulsion Laboratory. Improvements to AVIRIS prior to 1992 have been described previously. In this paper we describe recent and planned improvements to AVIRIS in the sensor task.
AVIRIS↗
Airborne Visible/Infrared Imaging Spectrometer (AVIRIS): Recent Improvements to the Sensor and Data Facility
AVIRIS operations at the Jet Propulsion Laboratory consist primarily of a sensor task and a data facility task. The sensor task is responsible for AVIRIS sensor meaintenance, laboratory calibration, and field operations. The AVIRIS data facility is responsible for data archiving, data calibration, quality monitoring and distribution. In this paper we describe recent improvements in these two primary AVIRIS tasks.
Airborne↗