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DC3: NASA DC-8 1 Minute Data Merge

Summary

This dataset contains NASA DC-8 1 Minute Data Merge data collected during the Deep Convective Clouds and Chemistry Experiment (DC3) from 18 May 2012 through 22 June 2012. This dataset contains updated data provided by NASA. In most cases, variable names have been kept identical to those submitted in the raw data files. However, in some cases, names have been changed (e.g., to eliminate duplication). Units have been standardized throughout the merge. In addition, a "grand merge" has been provided. This includes data from all the individual merged flights throughout the mission. This grand merge will follow the following naming convention: "dc3-mrg60-dc8_merge_YYYYMMdd_R5_thruYYYYMMdd.ict" (with the comment "_thruYYYYMMdd" indicating the last flight date included).

This dataset is in ICARTT format. Please see the header portion of the data files for details on instruments, parameters, quality assurance, quality control, contact information, and dataset comments.

For more information on updates to this dataset, please see the readme file.

Data access

ORDER data for delivery by FTP

Additional information

Identifier	DOI: https://doi.org/10.26023/VM9C-1C16-H003
Data Quality	final
Versions	2.0 (2014-01-31): Merge files now incorporate data added/modified by PIs as of June 09, 2014 (includes updated DLH, PALMS, and PINEPH-SCAT datasets). Updated the processing for OMI O3 column data (now interpolates missing data within a larger domain, replaces missing data with -9999s instead of 0s). 3.0 (2015-07-10): Merge files now incorporate data added/modified by PIs as of May 19, 2015 (includes updated CIT-HCN, DACOM, DLH, and NOAA-AeroExt files). Per Jose Jimenez, fixed rename of OM_OC_lt_1um_AMS (changed from "OMtoO-Cratio-ratio-lt-1um_AMS" to "OAtoOC_ratio-lt-1um_AMS" in the merge) 4.0 (2016-05-19) 5.0 (2017-05-16) 6.0 (2018-06-19): This version of the dataset now includes an updated version of the HOx and OHReactivity dataset that was modified by the dataset PIs as of 9 May 2018. (Only the current version of the data is available to order. If you have questions about a prior version, please email us.)
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Related projects	DC3: Deep Convective Clouds & Chemistry Project
Spatial Type	point
Language	English
Categories	Aircraft
Platforms	NASA DC-8
Instruments	AMS - Aerosol Mass Spectrometer GT-CIMS - Georgia Tech Chemical Ionization Mass Spectrometer PTR-MS - Proton Transfer Mass Spectrometer Particle Analysis by Laser Mass Spectrometry - PALMS Photoacoustic Absorption Spectrometer - PAS SMPS - Scanning Mobility Particle Sizer Solar Spectral Flux Radiometers - SSFR Soluble Acidic Gases and Aerosols - SAGA TD-LIF - Thermal Dissociation Laser Induced Fluorescence UHSAS - Ultra-High Sensitivity Aerosol Spectrometer Whole Air Sampler - WAS
GCMD Science Keywords	ABSORPTION AEROSOL EXTINCTION AEROSOL PARTICLE PROPERTIES AMMONIUM AEROSOLS ANGSTROM EXPONENT ATMOSPHERIC CARBON DIOXIDE ATMOSPHERIC CARBON MONOXIDE ATMOSPHERIC NITRIC ACID ATMOSPHERIC OZONE ATMOSPHERIC PRESSURE MEASUREMENTS CHLOROFLUOROCARBONS CLOUD CONDENSATION NUCLEI CLOUD CONDENSATION NUCLEI DEW POINT TEMPERATURE DEW POINT TEMPERATURE FLIGHT LEVEL WINDS FORMALDEHYDE HUMIDITY MIXING RATIO HYDROCHLOROFLUOROCARBONS HYDROFLUOROCARBONS HYDROGEN CHLORIDE HYDROXYL LONGWAVE RADIATION METHANE METHYL BROMIDE METHYL CHLORIDE NITRATE PARTICLES NITRIC OXIDE NITROGEN DIOXIDE NITROGEN OXIDES NITROUS OXIDE NON-METHANE HYDROCARBONS/VOLATILE ORGANIC COMPOUNDS PARTICLE SIZE DISTRIBUTION PHOTOLYSIS RATES Peroxyacyl Nitrate RELATIVE HUMIDITY SCATTERING SHORTWAVE RADIATION SKIN TEMPERATURE SKIN TEMPERATURE SOLAR IRRADIANCE STATIC PRESSURE SULFATE PARTICLES SULFUR DIOXIDE TRACE GASES/TRACE SPECIES TROPOPAUSE TURBULENCE U/V WIND COMPONENTS UPPER AIR TEMPERATURE VERTICAL WIND VELOCITY/SPEED VOLATILE ORGANIC COMPOUNDS WATER VAPOR WIND DIRECTION WIND SPEED Show 51 more... Expand keywords
Documentation	dc3-mrg60-dc8_merge_20120518_R10_thru20120622-README.txt [87 KiB] DC3_DC8_Flights_By_Date.txt [2 KiB]
Related links	info: DC3 Data Policy homepage: DC3 Home Page info: DC3 Missions info: DC3 Missions

Temporal coverage

Begin datetime	2012-05-01 00:00:00
End datetime	2012-06-30 23:59:59

Spatial coverage

Map data from IBCSO, IBCAO, and Global Topography.

Maximum (North) Latitude: 42.06574, Minimum (South) Latitude: 24.96023
Minimum (West) Longitude: -106.76535, Maximum (East) Longitude: -84.94339

Primary point of contact information

EOL Data Support <datahelp@eol.ucar.edu>

Additional contact information

author: Michael Shook <michael.a.shook@nasa.gov>
author: Gao Chen <gao.chen@nasa.gov>
author: Jennifer R. Olson <Jennifer.R.Olson@nasa.gov>

Citation

Shook, M., Chen, G., Olson, J. 2018. DC3: NASA DC-8 1 Minute Data Merge. Version 6.0. UCAR/NCAR - Earth Observing Laboratory. https://doi.org/10.26023/VM9C-1C16-H003. Accessed 13 Dec 2024.

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Ancillary information

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