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ERDDAP > info > EUREC4A_ATOMIC_RonBrown_PMEL_Radon_v0

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Institution Dataset ID
   set  data   graph     PMEL Atmospheric Chemistry ATOMIC Radon 30 minute data    ?   F   I   M   background (external link) RSS Subscribe
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The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL _NCProperties String version=2,netcdf=4.7.4,hdf5=1.10.6
attribute NC_GLOBAL cdm_data_type String Trajectory
attribute NC_GLOBAL cdm_trajectory_variables String trajectory_id
attribute NC_GLOBAL contributor_name String Coffman, Derek;Johnson, James;Quinn, Patricia;Bates, Tim;Upchurch, Lucia
attribute NC_GLOBAL Conventions String CF-1.6, COARDS, ACDD-1.3
attribute NC_GLOBAL creator_email String james.e.johnson at
attribute NC_GLOBAL creator_name String Johnson, James
attribute NC_GLOBAL creator_url String (external link)
attribute NC_GLOBAL date_created String 2020-11-30T17:24:01Z
attribute NC_GLOBAL Easternmost_Easting double -50.9295
attribute NC_GLOBAL featureType String Trajectory
attribute NC_GLOBAL geospatial_lat_max double 15.8647
attribute NC_GLOBAL geospatial_lat_min double 12.8039
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -50.9295
attribute NC_GLOBAL geospatial_lon_min double -59.6542
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL history String file created by NOAA/PMEL/ACG
attribute NC_GLOBAL infoUrl String (external link)
attribute NC_GLOBAL institution String NOAA PMEL Atmospheric Chemistry
attribute NC_GLOBAL keywords String 222rn, air, atmospheric, atomic, chemistry, concentration, data, environmental, identifier, laboratory, latitude, longitude, marine, minute, noaa, pacific, pmel, radioactivity, radioactivity_concentration_of_222rn_in_air, radon, time, trajectory, trajectory_id
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String The data may be used and redistributed for free but is not intended for legal use, since it may contain inaccuracies. Neither the data Contributor, ERD, NOAA, nor the United States Government, nor any of their employees or contractors, makes any warranty, express or implied, including warranties of merchantability and fitness for a particular purpose, or assumes any legal liability for the accuracy, completeness, or usefulness, of this information.
attribute NC_GLOBAL Northernmost_Northing double 15.8647
attribute NC_GLOBAL platform String RHBrown
attribute NC_GLOBAL product_version String 0
attribute NC_GLOBAL project String ATOMIC
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 12.8039
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL subsetVariables String trajectory_id
attribute NC_GLOBAL summary String ATOMIC (Atlantic Tradewind Ocean Atmosphere Mesoscale Interaction Campaign) 2020 Field campaign: Surface meteorological and ship navigation collected from the RV Ronald H. Brown by the National Oceanic and Atmospheric Administration (NOAA) Pacific Marine Environmental Laboratory (PMEL) Atmospheric Chemistry Group in the tropical North Atlantic ocean from 2020-01-09 to 2020-02-13
attribute NC_GLOBAL time_coverage_end String 2020-02-11T23:30:00Z
attribute NC_GLOBAL time_coverage_start String 2020-01-07T18:00:00Z
attribute NC_GLOBAL title String PMEL Atmospheric Chemistry ATOMIC Radon 30 minute data
attribute NC_GLOBAL Westernmost_Easting double -59.6542
attribute NC_GLOBAL Westernnmost_Easting double -59.6542
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.57842E9, 1.5814638E9
attribute time axis String T
attribute time calendar String gregorian
attribute time colorBarMaximum double 1.582E9
attribute time colorBarMinimum double 1.578E9
attribute time ioos_category String Time
attribute time long_name String Time
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
variable trajectory_id   String  
attribute trajectory_id cf_role String trajectory_id
attribute trajectory_id ioos_category String Identifier
attribute trajectory_id long_name String trajectory id
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double -1.0E34
attribute latitude actual_range double 12.8039, 15.8647
attribute latitude axis String Y
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude comment String In the one minute files the position is treated somewhat differently from all the other data. The position given is the ship's position at the start of the one minute 'averaging' period. All other data are a true average. The PMEL GPS was the primary source. The Ship's GPS was used when there were missing data in the PMEL record.
attribute latitude epic_code String 500
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
attribute latitude valid_max double 90.0
attribute latitude valid_min double -90.0
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double -1.0E34
attribute longitude actual_range double -59.6542, -50.9295
attribute longitude axis String X
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude comment String In the one minute files the position is treated somewhat differently from all the other data. The position given is the ship's position at the start of the one minute 'averaging' period. All other data are a true average. The PMEL GPS was the primary source. The Ship's GPS was used when there were missing data in the PMEL record.
attribute longitude epic_code String 502
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
attribute longitude valid_max double 180.0
attribute longitude valid_min double -180.0
variable radon   double  
attribute radon _FillValue double -1.0E34
attribute radon actual_range double -102.0, 5025.0
attribute radon colorBarMaximum double 6000.0
attribute radon colorBarMinimum double -2000.0
attribute radon comment String The PMEL radon instrument is a "dual flow loop, two filtered radon detector". The general features of the instrument are described in Whittlestone and Zahorowski, Baseline radon detectors for shipboard use: Development and deployment in the First Aerosol Characterization Experiment (ACE1), J. Geophys. Res., 103, 16,743-16,751, 1998. The instrument response is due to radon gas, not radon daughters (all of the existing radon daughters are filtered out before entering the decay/counting tank). The instrument registers the total number of decay counts per 30 minute interval on a filter (wire screen) arising from the decay of radon in the tank. The volume of the decay/counting tank was 905 l and the sample flow rate into and out of the tank was typically 70 l/min. The response time of the radon instrument is limited to about 30 minutes by the radiological decay time constants of the radon daughters on the wire screen filter. Thus, the start time given in the data file is 15 minutes prior to the midpoint of the counting interval. The instrument was calibrated with a known radon source in Seattle before the cruise and a second calibration was performed after the instrument was shipped back to PMEL. Radon concentrations are given in mBq m-3.
attribute radon epic_code String 1810
attribute radon instrument String dual flow loop, two filtered radon detector
attribute radon ioos_category String Unknown
attribute radon long_name String Radon
attribute radon missing_value double -999.0
attribute radon source String surface observation
attribute radon standard_name String radioactivity_concentration_of_222rn_in_air
attribute radon units String mBq m-3
attribute radon valid_max double 50000.0
attribute radon valid_min double 0.0

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.

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