ASDC | CPEX_DAWN_DC8

CPEX Level 2

Entry Title: CPEX DAWN WIND PROFILES

Entry ID: CPEX_DAWN_DC8_1

Field Campaigns

Description

During 25 May – 24 June 2017, NASA funded and conducted the Convective Processes Experiment (CPEX) which was based out of Ft. Lauderdale, FL and used a suite of instruments aboard a NASA DC-8 aircraft to investigate convective process and circulations over tropical waters. A main objective of CPEX was to obtain a comprehensive set of temperature, humidity and, particularly, wind observations in the vicinity of scattered and organized deep convection in all phases of the convective life cycle.

The featured instrument of the airborne campaign was NASA’s Doppler Aerosol WiNd (DAWN) lidar but also included dropsondes, the Airborne Second Generation Precipitation Radar (APR-2), the High Altitude MMIC Sounding Radiometer (HAMSR), the Microwave Temperature and Humidity Profiler (MTHP), and the Microwave Atmospheric Sounder for Cubesat (MASC).

In total, the CPEX campaign flew 16 missions over the Atlantic Ocean, Caribbean Sea and the Gulf of Mexico and included missions investigating undisturbed conditions, scattered convection, organized convection and the environment of a tropical storm. The DAWN (and Dropsonde) wind measurement collected during CPEX have provided a unique set of wind profiles to be used in analysis and model assimilation and prediction studies.

CPEX also utilized the High Definition Sounding System (HDSS) dropsonde delivery system developed by Yankee Environmental Services to drop almost 300 dropsondes to obtain additional high-resolution vertical wind profiles during most missions. These dropsondes also provided needed calibration/validation for the much newer DAWN measurements.

DOI

10.5067/ASDC_DAAC/CPEX/DAWN_DC8_1

Citation Styles for this Dataset

Resources and Documentation

Earthdata Forum

PROJECT HOME PAGE

CPEX Project overview

VIEW RELATED INFORMATION

GENERAL DOCUMENTATION

JPL.NASA.gov Article "NASA's CPEX Tackles a Weather Fundamental"

MICRO ARTICLE

Earth Observing System Data and InformationSystem (EOSDIS) Article: "Clouds in a Clear Sky" By Annette Varani

PUBLICATIONS

AGU Poster # 262: The Doppler Aerosol Wind (DAWN) Lidar during CPEX 2017: Performance Assessment

READ-ME

CPEX DAWN Data Readme
CPEX Dropsonde Data Readme

From GCMD Science Keywords:

BOUNDARY LAYER WINDS > UPPER LEVEL WINDS
ATMOSPHERIC WINDS
LINE OF SIGHT WINDS > WIND PROFILES
UPPER LEVEL WINDS
SURFACE WINDS
LOCAL WINDS
WIND PROFILES

Boundary Layer Winds
Line Of Sight Winds
Local Winds
Surface Winds
Upper Level Winds
Wind Profiles

Data Distribution

File Format(s):

ASCII, Other (Word, PNG, CSV, Text File, KMZ)

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Spatial Information

Spatial Coverage: (S: 16, N: 29), (W: -97, E: -69)
Spatial Coverage Type: Horizontal
Horizontal Resolution Range: 1 km - < 10 km or approximately .01 degree - < .09 degree
Vertical Resolution Range: 30 meters - < 100 meters
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

NORTH AMERICA TROPICS WESTERN HEMISPHERE NORTH ATLANTIC OCEAN

Temporal Information

Temporal Coverage: 2017-05-27 - Present

Platforms

Aircraft

NASA DC-8

NASA Douglas DC-8

DAWN

Doppler Aerosol WiNd Lidar

Metadata Dates

Created on 2019-03-08

Last updated on 2022-11-04