ACTIVATE Level 2
Entry Title: ACTIVATE Falcon In Situ Cloud Data

Entry ID: ACTIVATE_Cloud_AircraftInSitu_Falcon_Data_1
Clouds
Description

ACTIVATE_Cloud_AircraftInSitu_Falcon_Data is the cloud data collected onboard the HU-25 Falcon aircraft via in-situ instrumentation during the ACTIVATE project. ACTIVATE was a 5-year NASA Earth-Venture Sub-Orbital (EVS-3) field campaign. Marine boundary layer clouds play a critical role in Earth’s energy balance and water cycle. These clouds cover more than 45% of the ocean surface and exert a net cooling effect. The Aerosol Cloud meTeorology Interactions oVer the western Atlantic Experiment (ACTIVATE) project was a five-year project that provides important globally-relevant data about changes in marine boundary layer cloud systems, atmospheric aerosols and multiple feedbacks that warm or cool the climate. ACTIVATE studied the atmosphere over the western North Atlantic and sampled its broad range of aerosol, cloud and meteorological conditions using two aircraft, the UC-12 King Air and HU-25 Falcon. The UC-12 King Air was primarily used for remote sensing measurements while the HU-25 Falcon will contain a comprehensive instrument payload for detailed in-situ measurements of aerosol, cloud properties, and atmospheric state. A few trace gas measurements were also onboard the HU-25 Falcon for the measurements of pollution traces, which will contribute to airmass classification analysis. A total of 150 coordinated flights over the western North Atlantic occurred through 6 deployments from 2020-2022. The ACTIVATE science observing strategy intensively targets the shallow cumulus cloud regime and aims to collect sufficient statistics over a broad range of aerosol and weather conditions which enables robust characterization of aerosol-cloud-meteorology interactions. This strategy was implemented by two nominal flight patterns: Statistical Survey and Process Study. The statistical survey pattern involves close coordination between the remote sensing and in-situ aircraft to conduct near coincident sampling at and below cloud base as well as above and within cloud top. The process study pattern involves extensive vertical profiling to characterize the target cloud and surrounding aerosol and meteorological conditions.

DOI

10.5067/ASDC/ACTIVATE_Cloud_AircraftInSitu_Falcon_Data_1

Citation Styles for this Dataset
Publications which Cite this Collection

Dadashazar, Hossein; Painemal, David; Alipanah, Majid; Brunke, Michael; Chellappan, Seethala; Corral, Andrea F.; Crosbie, Ewan; Kirschler, Simon; Liu, Hongyu; Moore, Richard H.; Robinson, Claire; Scarino, Amy Jo; Shook, Michael; Sinclair, Kenneth; Thornhill, K. Lee; Voigt, Christiane; Wang, Hailong; Winstead, Edward; Zeng, Xubin; Ziemba, Luke; Zuidema, Paquita; Sorooshian, Armin (2022). Cloud drop number concentrations over the western North Atlantic Ocean: seasonal cycle, aerosol interrelationships, and other influential factors. Atmospheric Chemistry and Physics, 21 (13), 10499. https://doi.org/10.5194/acp-21-10499-2021


Dadashazar, Hossein; Corral, Andrea F.; Crosbie, Ewan; Dmitrovic, Sanja; Kirschler, Simon; McCauley, Kayla; Moore, Richard; Robinson, Claire; Schlosser, Joseph S.; Shook, Michael; Thornhill, K. Lee; Voigt, Christiane; Winstead, Edward; Ziemba, Luke; Sorooshian, Armin (2017). Organic enrichment in droplet residual particles relative to out of cloud over the northwestern Atlantic: analysis of airborne ACTIVATE data.


Dadashazar, Hossein; Crosbie, Ewan; Choi, Yonghoon; Corral, Andrea F.; DiGangi, Joshua P.; Diskin, Glenn S.; Dmitrovic, Sanja; Kirschler, Simon; McCauley, Kayla; Moore, Richard H.; Nowak, John B.; Robinson, Claire E.; Schlosser, Joseph; Shook, Michael; Thornhill, Kenneth Lee; Voigt, Christiane; Winstead, Edward L.; Ziemba, Luke D.; Sorooshian, Armin (2014). Analysis of MONARC and ACTIVATE Airborne Aerosol Data for Aerosol-Cloud Interaction Investigations: Efficacy of Stairstepping Flight Legs for Airborne In Situ Sampling.


Keywords

From GCMD Science Keywords:
  • CLOUDS
  • PARTICLE SIZE DISTRIBUTION > CLOUD MICROPHYSICS
  • CLOUD LIQUID WATER/ICE > CLOUD MICROPHYSICS
  • CLOUD MICROPHYSICS
  • CLOUD DROPLET DISTRIBUTION
  • CLOUD DROPLET CONCENTRATION/SIZE > CLOUD MICROPHYSICS
Data Distribution

File Format(s):

ICARTT

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Spatial Information

spatial-coverage-map
Spatial Coverage: (S: 25, N: 50), (W: -85, E: -58.5)
Spatial Coverage Type: Horizontal Vertical
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian
Locations

NORTH AMERICA UNITED STATES OF AMERICA ATLANTIC OCEAN NORTH ATLANTIC OCEAN BERMUDA TROPOSPHERE NORTHERN HEMISPHERE WESTERN HEMISPHERE
Temporal Information

Temporal Coverage: 2020-02-14 - 2022-06-30
Platforms

Jet
HU-25A
Dassault HU-25A Guardian
CAS
Cloud and Aerosol Spectrometer
CDP
Cloud Droplet Probe
2DS
2D-STEREO PARTICLE PROBE (2DS)
FCDP
FAST CLOUD DROPLET PROBE (FCDP)
Metadata Dates

Created on 2020-11-03
Last updated on 2023-08-03