Table · collection · 2026

AirSHARP CIRPAS Twin Otter In-Situ Meteorology and Navigation Data

Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/airsharp/cirpas-to/metnav_aircraftinsitu_1

AirSHARP_MetNav_AircraftInSitu_CIRPAS-TO_Data is the in-situ meteorology and navigation data collected onboard the Twin Otter aircraft flying the CIRPAS suite of instruments during the Airborne aSsessment of Hyperspectral Aerosol optical depth and water-leaving Reflectance (AirSHARP) campaign.

Description

Data from the N806NA Meteorological and Navigation Facility Instrumentation is featured in this collection. Data collection for this product is complete.

NASA’s Airborne aSsessment of Hyperspectral Aerosol optical depth and water-leaving Reflectance (AirSHARP) observed the atmosphere and ocean for validating the Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) satellite’s Ocean Color Instrument (OCI). During October 2024 and May 2025, AirSHARP conducted simultaneous airborne and seaborne campaigns to collect data under different environmental conditions, validating as much of OCI’s range as possible.

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Over the two deployments, 14 flights were conducted utilizing the NPS CIRPAS Twin Otter Aircraft. The aircraft was equipped with facility instruments measuring meteorological and navigation parameters, along with the Spectrometer for sky-scanning sun Tracking Atmospheric Research B (4STAR-B) instrument. Additional radiometer package, C-AIR (Coastal Airborne In-Situ Radiometers), for sampling the water leaving radiances and remote sensing reflectances of the Monterey Bay were on board the Twin Otter during AirSHARP, with its data archived in the SeaBass archive (seabass.gsfc.nasa.gov/experiment/PVST_AIRSHARP).

The overarching goal of both AirSHARP deployments was to assess hyperspectral aerosol optical depth and water-leaving reflectance products for PACE OCI and polarimeter validation.

Topics

Stated by source: Airspeed/Ground Speed · Atmospheric Pressure Measurements · Computer · Flight Data Logs · Potential Temperature · Relative Humidity · Static Temperature · TWIN OTTER CIRPAS NPS · Virtual Temperature · Water Vapor Mixing Ratio Profiles · Wind Direction · Wind Speed
From keywords: Astronomy & Astrophysics · Earth & Environmental Science · Engineering · Ocean & Atmospheric Science · Physics
Inferred from text: Atmospheric sciences 69% · Satellite remote sensing 65%

Provenance · 2 source records, 29 field assertions

Source	Key	Last seen	Raw
NASA Earthdata CMR	C4126792971-LARC_CLOUD	8 d ago	JSON v1
NASA Data Portal	516c236e-0a27-49ba-8b58-1f3e1faaa142	6 d ago	JSON v1

Field	Assertion	Extractor	Evidence
access_level	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[field].anzsrc:group:3701	enrichment · NASA CMR	taxonomy-embedding@1.0.0	title+keywords+description (69%)
concepts[field].local:field:astronomy	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:earth-environmental	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:engineering	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:ocean-atmospheric	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[field].local:field:physics	mapping · data nasa gov	connector:data_nasa_gov@1.0.0
concepts[instrument].gcmd_instrument:computer	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-pressure/atmospheric-pressure-measurements	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-temperature/surface-temperature/potential-temperature	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-temperature/surface-temperature/static-temperature	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-temperature/surface-temperature/virtual-temperature	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-water-vapor/water-vapor-indicators/humidity/relative-humidity	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-water-vapor/water-vapor-profiles/water-vapor-mixing-ratio-profiles	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-winds/surface-winds/wind-direction	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/atmospheric-winds/surface-winds/wind-speed	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/spectral-engineering/platform-characteristics/airspeed-ground-speed	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/spectral-engineering/platform-characteristics/flight-data-logs	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[modality].local:modality:remote-sensing	enrichment · NASA CMR	keyword-concept-rules@1.0.0	title+description (65%)
concepts[platform].gcmd_platform:twin-otter-cirpas-nps	source · NASA CMR	connector:nasa_cmr@1.0.0
created_date	source · NASA CMR	connector:nasa_cmr@1.0.0
description	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/Abstract
license_text	source · NASA CMR	connector:nasa_cmr@1.0.0
publication_date	source · NASA CMR	connector:nasa_cmr@1.0.0
spatial	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/SpatialExtent
temporal	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/TemporalExtents
title	source · NASA CMR	connector:nasa_cmr@1.0.0	/umm/EntryTitle
updated_date	source · data nasa gov	connector:data_nasa_gov@1.0.0
version_label	source · NASA CMR	connector:nasa_cmr@1.0.0

AirSHARP CIRPAS Twin Otter In-Situ Meteorology and Navigation Data

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