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Instrument

GISMOS
GNSS Instrument System for Multi-static and Occultation Sensing

The GNSS Instrument System for Multi-static and Occultation Sensing (GISMOS) is an airborne remote sensing system developed by Purdue University. It detects occulted and reflected signals from the Global Navigation Satellite System (GNSS) at 10 MHz. These signals are used to determine tropospheric water vapor profiles, ocean surface roughness, and soil moisture during long-duration, high-altitude flights. GISMOS has a data rate of 5 Hz.

NASA's DC-8 flying laboratory passes Antarctica's tallest peak, Mount Vinson, on Oct. 22, 2012, during a flight over the continent to measure changes in the massive ice sheet and sea ice. Credit: NASA/Michael Studinger (Photography courtesy NASA Images)

Overview

Instrument Details

Measurement Type

Position/Navigation

Measurement/Variables

Earth Science > Atmosphere > Atmospheric Water Vapor

Earth Science > Land Surface > Soils > Soil Moisture/water Content

Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles

Earth Science > Land Surface > Topography > Surface Roughness

Vertical Measurement Regions

Troposphere

Temporal Resolution

5 Hz

Spatial Resolution

N/A

Measurement Frequency

10 MHz

Calibration Details

Currently unavailble

Online Information

Lead Investigator
Jennifer Haase
Technical Contact
Jennifer Haase
Instrument Maker
Currently unavailable
Funding Source
NSF
Overview Publications
Currently unavailable
Repository
- Unpublished

Instrument Operation

Platform

Campaigns, where the platform was used with this instrument

P-3 Orion

26 Campaigns · 139 Instruments

High Winds

Labrador Sea, North Atlantic Ocean

view all deployment dates

· 0 Data Products

Data Products

There are no data products linked to this campaign in CASEI - yet.