ASDC | CPEXAW-DAWN_DC8

CPEX-AW Level 2

Entry Title: CPEX-AW DAWN Doppler Aerosol WiNd Lidar

Entry ID: CPEXAW-DAWN_DC8_1

Field Campaigns

Description

CPEXAW-DAWN_DC8_1 are the Doppler Aerosol WiNd lidar (DAWN) image and NetCDF data files collected during the Convective Processes Experiment - Aerosols & Winds (CPEX-AW) onboard the DC-8 aircraft. Data collection for this product is complete.

The Convective Processes Experiment – Aerosols & Winds (CPEX-AW) campaign was a joint effort between the US National Aeronautics and Space Administration (NASA) and the European Space Agency (ESA) with the primary goal of conducting a post-launch calibration and validation activities of the Atmospheric Dynamics Mission-Aeolus (ADM-AEOLUS) Earth observation wind Lidar satellite in St. Croix. CPEX-AW is a follow-on to the Convective Processes Experiment (CPEX) field campaign which took place in the summer of 2017. In addition to joint calibration/validation of ADM-AEOLUS, CPEX-AW studied the dynamics related to the Saharan Air Layer, African Easterly Waves and Jets, Tropical Easterly Jet, and deep convection in the InterTropical Convergence Zone (ITCZ). CPEX-AW science goals include:

• Better understanding interactions of convective cloud systems and tropospheric winds as part of the joint NASA-ESA Aeolus Cal/Val effort over the tropical Atlantic;

• Observing the vertical structure and variability of the marine boundary layer in relation to initiation and lifecycle of the convective cloud systems, convective processes (e.g., cold pools), and environmental conditions within and across the ITCZ;

• Investigating how the African easterly waves and dry air and dust associated with Sahara Air Layer control the convectively suppressed and active periods of the ITCZ;

• Investigating interactions of wind, aerosol, clouds, and precipitation and effects on long range dust transport and air quality over the western Atlantic.

In order to successfully achieve the objectives of the campaign, NASA deployed its DC-8 aircraft equipped with an Airborne Third Generation Precipitation Radar (APR-3), Doppler Aerosol WiNd Lidar (DAWN), High Altitude Lidar Observatory (HALO), High Altitude Monolithic Microwave Integrated Circuit (MMIC) Sounding Radiometer (HAMSR), and dropsondes. This campaign aims to provide useful material to atmospheric scientists, meteorologists, lidar experts, air quality experts, professors, and students. The Atmospheric Science Data Center (ASDC) archives the dropsonde, HALO, and DAWN data products for CPEX-AW. For additional datasets please visit the Global Hydrometeorology Resource Center (GHRC).

DOI

10.5067/ASDC/SUBORBITAL/CPEXAW-DAWN_DC8_1

Citation Styles for this Dataset

Resources and Documentation

Earthdata Forum

PROJECT HOME PAGE

CPEX-AW Project Home Page

GHRC CPEX-AW Home Page

GHRC CPEX-AW Data

VIEW RELATED INFORMATION

GENERAL DOCUMENTATION

PUBLICATIONS

Aeolus Cal/Val DAWN Observations

From GCMD Science Keywords:

WIND SPEED > UPPER LEVEL WINDS
WIND DIRECTION > UPPER LEVEL WINDS
WIND DIRECTION PROFILES > WIND PROFILES
LOCAL WINDS
SURFACE WINDS
BOUNDARY LAYER WINDS > UPPER LEVEL WINDS
WIND PROFILES
LINE OF SIGHT WINDS > WIND PROFILES
ATMOSPHERIC WINDS
UPPER LEVEL WINDS
WIND VELOCITY/SPEED PROFILES > WIND PROFILES

Data Distribution

File Format(s):

NetCDF-4

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Spatial Information

Spatial Coverage: (S: 11, N: 35), (W: -81, E: -45)
Spatial Coverage Type: Horizontal Vertical
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

CONTINENT NORTH AMERICA OCEAN NORTHERN HEMISPHERE GEOGRAPHIC REGION TROPOSPHERE VERTICAL LOCATION ATLANTIC OCEAN NORTH ATLANTIC OCEAN CARIBBEAN SEA CARIBBEAN WESTERN HEMISPHERE

Temporal Information

Temporal Coverage: 2020-08-20 - 2021-09-04

Platforms

Jet

NASA DC-8

NASA Douglas DC-8

DAWN

Doppler Aerosol WiNd Lidar

Metadata Dates

Created on 2022-04-20

Last updated on 2024-09-10