Search

A novel polarimetric imaging technique making use of rapid retardance modulation has been developed by JPL as a part of NASA's Instrument Incubator Program. It has been built into the Airborne Multiangle SpectroPolarimetric Imager (AirMSPI) under NASA's Airborne Instrument Technology Transition Program, and is aimed primarily at remote sensing of the amounts and microphysical properties of aerosols and clouds. AirMSPI includes an 8-band (355, 380, 445, 470, 555, 660, 865, 935 nm) pushbroom camera that measures polarization in a subset of the bands (470, 660, and 865 nm). The camera is mounted on a gimbal and acquires imagery in a configurable set of along-track viewing angles ranging between +67 deg and -67 deg relative to nadir. As a result, near simultaneous multi-angle, multi-spectral, and polarimetric measurements of the targeted areas at a spatial resolution ranging from 7 m to 20 m (depending on the viewing angle) can be derived. An automated data production system is being built to support high data acquisition rate in concert with co-registration and orthorectified mapping requirements. To date, a number of successful engineering checkout flights were conducted in October 2010, August-September 2011, and January 2012. Data products resulting from these flights will be presented.

An overview of the in-flight geometric calibrations and quality assessment along with the current status and discusion of the operational results is presented.

This paper focuses on the photogrammetric aspect of the data production and discusses quality of the global mapping as evaluated during the first two years of the mission.

UNKNOWN

Instantaneously, the nine pushbroom cameras of the Multi-angle Image SpectroRadiometer (MISR) instrument view the Earth at nine discrete angles, ranging from forward 70 deg, 60 deg, 45 deg, 25 deg, nadir, to symmetric aftward angles in the along-track direction.

This paper provides a description of the algorithm and operational aspects of AirMISR georectification along with examples and results from a recent flight.

This MISR in-flight Geometric Calibration (IGC) Plan describes the concept, development strategy and operational design to be used for geometric calibration of the instrument and for producing the Geometric Calibration Dataset (GCD) which is required as an input to the L1B2 standard processing.

This document describes the data products by the Airborne Multiangle Imaging SpectroRadiometer (AirMISR) sensor.

The theoretical concept, underlying the design of the Multi-angle Imaging SpectroRadiometer (MISR) inflight geometric calibration is the subject of this paper.

The multi-angle Imaging SpectroRadiometer (MISR) is part of an Earth Observing System (EOS) payload to be launched in 1998.

This Algorithm Theoretical Basis (ATB) document describes the algorithms used to generate the Multi-angle Imaging SpectroRadiometer (MISR) Level 1B2 Georectified Radiance Product (GRP).

During the standard geo-rectification processing of the MISR imagery, all four spectral bands belonging to each of the nine MISR cameras are required to be geolocated and co-registered automatically with about one pixel accuracy. Two steps of processing are designed to accomplish this goal: 1)a complex multi-camera geolocation and co-registration of the red spectral band data for all nine cameras, and 2) the co-registration of the other three spectral bands of MISR imagery of each camera using their relationship with the already geolocated red band imagery. This paper addresses the second processing.

Multi-Angle Imaging Spectro-Radiometer (MISR) is part of an Earth observing system (EOS) payload to be launched in 1998 to study the ecology and climate of Earth. EOS will acquire multi-angle images in reflected sunlight at nine angles.

This paper describes a modeling system for the simulation of the Multi-angle Imaging Spectro-Radiometer (MISR) instrument push-broom data to be used in the prototyping of the MISR ground data system.