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Instrument

UHSAS
Ultra-High Sensitivity Aerosol Spectrometer

The Ultra-High Sensitivity Aerosol Spectrometer (UHSAS) is an in situ spectrometer developed by Droplet Measurement Technologies. It can be used on both airborne and ground-based platforms to measure aerosol size distribution and concentration. UHSAS determines particle size by detecting the peak light signals from aerosol particles illuminated by a 1054 nm laser. It can sample particles in the 60–1000 nm size range and operates at a sampling frequency of 10 Hz.

Image of the UHSAS on the top right
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

Spectrometer/Radiometer
Earth Science > Atmosphere > Aerosols
Earth Science > Atmosphere > Aerosols > Aerosol Particle Properties
Troposphere
10 Hz
Point
284 THz
https://doi.org/10.2172/1251410External Link

Instrument Operation

GRIP

Genesis and Rapid Intensification Processes

2010
Tropical Atlantic, Gulf of Mexico, Eastern North Pacific, Caribbean Sea
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1 Deployment
· 24 Data Products
DC3

Deep Convective Clouds & Chemistry

2012
Northeastern Colorado, West Texas to Central Oklahoma, Northern Alabama
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1 Deployment
· 19 Data Products
NAMMA

NASA African Monsoon Multidisciplinary Analyses

2006
Cape Verde Islands, Atlantic Ocean
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1 Deployment
· 23 Data Products
ARCTAS

Arctic Research of the Composition of the Troposphere from Aircraft and Satellites

2008
Alaska, Western Canada, California
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3 Deployments
· 27 Data Products
The logo for the FIREX-AQ campaign
FIREX-AQ

Fire Influence on Regional to Global Environments and Air Quality

2019
Northwestern and Southeastern US
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1 Deployment
· 26 Data Products
AEROMMA

Atmospheric Emissions and Reactions Observed from Megacities to Marine Areas

2023
Urban regions across the western and eastern United States
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1 Deployment
· 0 Data Products
SARP

Student Airborne Research Program

2009—2030
Southern California, Virginia
Ongoing
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17 Deployments
· 0 Data Products
ASIA-AQ

Airborne and Satellite Investigation of Asian Air Quality

2024
East and Southeast Asia, Philippines, South Korea, Thailand
Ongoing
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1 Deployment
· 8 Data Products
MC3E

Mid-latitude Continental Convective Clouds Experiment

2011
Central Oklahoma, Southern Plains
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1 Deployment
· 34 Data Products
DISCOVER-AQ

Deriving Information on Surface Conditions from COlumn and VERtically Resolved Observations Relevant to Air Quality

2011—2014
Baltimore MD, San Joaquin Valley CA, Houston TX, Denver CO
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4 Deployments
· 89 Data Products
The logo for the ORACLES Campaign
ORACLES

Observations of Aerosols above Clouds and their Interactions

2016—2018
Southeastern Atlantic Ocean, Southern Africa
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3 Deployments
· 8 Data Products
SARP

Student Airborne Research Program

2009—2030
Southern California, Virginia
Ongoing
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17 Deployments
· 0 Data Products
ARCSIX

Arctic Radiation-Cloud-Aerosol-Surface Interaction EXperiment

2024
Greenland, Arctic Ocean
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2 Deployments
· 0 Data Products
SaSa

Student Airborne Science Activation Program

2022
Mid-Atlantic, Wallops Flight Facility
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1 Deployment
· 0 Data Products
The logo for the ACCLIP Campaign
ACCLIP

Asian Summer Monsoon Chemical & Climate Impact Project

2022
West Pacific, South Korea
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1 Deployment
· 8 Data Products
DC3

Deep Convective Clouds & Chemistry

2012
Northeastern Colorado, West Texas to Central Oklahoma, Northern Alabama
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1 Deployment
· 19 Data Products
The logo for the NAAMES campaign
NAAMES

North Atlantic Aerosols and Marine Ecosystems Study

2015—2018
Northwestern Atlantic Ocean
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4 Deployments
· 13 Data Products
The logo for the FIREX-AQ campaign
FIREX-AQ

Fire Influence on Regional to Global Environments and Air Quality

2019
Northwestern and Southeastern US
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1 Deployment
· 26 Data Products
MILAGRO

Megacity Initiative: Local and Global Research Observations

2006
Mexico City Metropolitan Area
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1 Deployment
· 0 Data Products
The logo for the FIREX-AQ campaign
FIREX-AQ

Fire Influence on Regional to Global Environments and Air Quality

2019
Northwestern and Southeastern US
view all deployment dates
1 Deployment
· 26 Data Products
AASE

Airborne Arctic Stratospheric Expedition

1988—1992
Arctic
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2 Deployments
· 2 Data Products
DC3

Deep Convective Clouds & Chemistry

2012
Northeastern Colorado, West Texas to Central Oklahoma, Northern Alabama
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1 Deployment
· 19 Data Products
The logo for the ACCLIP Campaign
ACCLIP

Asian Summer Monsoon Chemical & Climate Impact Project

2022
West Pacific, South Korea
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1 Deployment
· 8 Data Products
PACE-PAX

Plankton, Aerosol, Cloud, ocean Ecosystem Postlaunch Airborne eXperiment

2024
Southern and Central California
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1 Deployment
· 0 Data Products

Data Products

Filter data products from this instrument by specific campaigns, platforms, or formats.

Campaigns
CAMPAIGNS
Platforms
PLATFORMS
Formats
FORMATS
Gulfstream-V
Gulfstream-V
https://doi.org/10.5067/ASDC/SUBORBITAL/DC3_MetNav_AircraftInSitu_NSF-GV-HIAPER_Data_1External Link
Gulfstream-V
http://dx.doi.org/10.5067/NAMMA/MULTIPLE/DATA202External Link
Douglas DC-8
Douglas DC-8
10.5067/ASDC_DAAC/DISCOVER-AQ/0005External Link
P-3 Orion
10.5067/ASDC_DAAC/DISCOVER-AQ/0006External Link
P-3 Orion
http://dx.doi.org/10.5067/GPMGV/MC3E/MULTIPLE/DATA201External Link
P-3 Orion
ICARTT, NetCDF
10.3334/ORNLDAAC/1619External Link
Douglas DC-8
10.5067/ASDC/FIREXAQ_SurfaceMobile_MACH2_InSitu_Data_1External Link
ICARTT
Douglas DC-8
ICARTT
10.3334/ORNLDAAC/1671External Link
Douglas DC-8
http://dx.doi.org/10.5067/GRIP/LARGE/DATA201External Link
Douglas DC-8
Douglas DC-8
ICARTT
NASA WB-57
ICARTT
Douglas DC-8
ICARTT
10.5067/ASDC/SUBORBITAL/DISCOVERAQ_Maryland_Aerosol_AircraftInSitu_P3B_Data_1External Link
P-3 Orion
ICARTT
10.5067/ASDC/SUBORBITAL/DISCOVERAQ_California_Aerosol_AircraftInSitu_P3B_Data_1External Link
P-3 Orion
ICARTT
10.5067/ASDC/SUBORBITAL/DISCOVERAQ_Texas_Aerosol_AircraftInSitu_P3B_Data_1External Link
P-3 Orion
ICARTT
10.5067/ASDC/SUBORBITAL/DISCOVERAQ_Colorado_Aerosol_AircraftInSitu_P3B_Data_1External Link
P-3 Orion
ICARTT
Douglas DC-8
ICARTT, JPEG