Table · collection · 2025

PACE-PAX CIRPAS Twin Otter Facility Instrument Data

Listed in NASA Earthdata CMR and NASA Data Portal — shown once because both records carry DOI 10.5067/asdc/suborbital/pace-pax/cirpas-to/cirpas-facility_aircraftinsitu_1

PACE-PAX_CIRPAS-Facility_AircraftInSitu_CIRPAS-TO_Data is the facility instrument data collected onboard the Twin Otter aircraft flying the CIRPAS suite of instruments during the Plankton, Aerosol, Cloud, ocean Ecosystem Postlaunch Airborne eXperiment (PACE-PAX) campaign.

Description

Data from the Cloud and Aerosol Spectrometer (CAS), Cloud Imaging Probe (CIP), and the Passive-Cavity Aerosol Spectrometer Probe (PCASP) instruments are featured in this collection.

Data collection for this product is complete. The Plankton, Aerosol, Cloud, ocean Ecosystem Postlaunch Airborne eXperiment (PACE-PAX) was a field campaign to gather data to support PACE mission validation. A secondary objective was help validate data from JAXA/ESA's Earth Cloud, Aerosol, and Radiation Explorer (EarthCARE) mission.

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PACE-PAX was conducted in September 2024 in Southern and Central California and nearby coastal regions. The team flew 81 hours on the NASA ER-2 operating out of the NASA Armstrong Flight Research Center and 60 flight hours on the CIRPAS Twin Otter from Marina Municipal Airport. A NOAA vessel, the R/V Shearwater, operated 16 day trips out of Santa Barbara, while a privately owned sailboat, the R/V Blissfully, conducted nine sorties out of Long Beach.

Numerous other entities — many of which were members of the PACE Validation Science Team (PVST) — cooperated to make coincident observations. Ocean data are archived at the SeaWiFS Bio-optical Archive and Storage System (SeaBASS), DOI: 10.5067/SeaBASS/PACE-PAX/DATA001 The PACE-PAX mission website contains additional campaign documentation. For more meteorology resources supporting PACE-PAX, please visit NASA Ames Airborne Science Meteorological Support for PACE-PAX.

All resources are linked as Related URLs.

Topics

Stated by source: Aerosol Particle Properties · Aerosol Size Distribution · Airspeed/Ground Speed · Cloud and Aerosol Spectrometer · Cloud Imaging Probe · Flight Data Logs · Passive-Cavity Aerosol Spectrometer Probe · Potential Temperature · Relative Humidity · Static Temperature · TWIN OTTER CIRPAS NPS · Water Vapor Mixing Ratio Profiles · Wind Direction · Wind Speed
From keywords: Astronomy & Astrophysics · Earth & Environmental Science · Engineering · Ocean & Atmospheric Science · Physics
Inferred from text: Imaging 75%

Provenance · 2 source records, 30 field assertions

Source	Key	Last seen	Raw
NASA Earthdata CMR	C3525270471-LARC_CLOUD	8 d ago	JSON v1
NASA Data Portal	29bc54c3-d10f-40b0-b1ac-72d7078484a1	5 d ago	JSON v1

Field	Assertion	Extractor	Evidence
access_level	source · NASA CMR	connector:nasa_cmr@1.0.0
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:cas	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:cip	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[instrument].gcmd_instrument:pcasp	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/aerosols/aerosol-particle-properties	source · NASA CMR	connector:nasa_cmr@1.0.0
concepts[measured_variable].gcmd:earth-science/atmosphere/aerosols/aerosol-particle-properties/aerosol-size-distribution	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-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:imaging	enrichment · NASA CMR	keyword-concept-rules@1.0.0	title+description (75%)
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

PACE-PAX CIRPAS Twin Otter Facility Instrument Data

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