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   set  data   graph     PMEL Atmospheric Chemistry ATOMIC MET_NAV 1 minute data    ?   F   I   M   background (external link) RSS Subscribe
NOAA PMEL Atmosph...  ?
EUREC4A_ATOMIC_RonBrown_PMEL_Met_Nav_v1

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 noaa.gov
attribute NC_GLOBAL creator_name String Johnson, James
attribute NC_GLOBAL creator_url String https://saga.pmel.noaa.gov (external link)
attribute NC_GLOBAL date_created String 2020-11-30T17:21:45Z
attribute NC_GLOBAL Easternmost_Easting double -50.9246
attribute NC_GLOBAL featureType String Trajectory
attribute NC_GLOBAL geospatial_lat_max double 15.8652
attribute NC_GLOBAL geospatial_lat_min double 12.7865
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -50.9246
attribute NC_GLOBAL geospatial_lon_min double -59.6588
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 https://saga.pmel.noaa.gov (external link)
attribute NC_GLOBAL institution String NOAA PMEL Atmospheric Chemistry
attribute NC_GLOBAL keywords String air, air_pressure, air_temp, air_temperature, atmosphere, atmospheric, atomic, baro_pressure, barometric, chemistry, component, course, data, diffuse, diffuse_downwelling_shortwave_flux_in_air, direction, downwelling, earth, Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements, Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure, Earth Science > Atmosphere > Atmospheric Pressure > Static Pressure, Earth Science > Atmosphere > Atmospheric Radiation > Shortwave Radiation, Earth Science > Atmosphere > Atmospheric Temperature > Air Temperature, Earth Science > Atmosphere > Atmospheric Temperature > Surface Air Temperature, Earth Science > Atmosphere > Atmospheric Water Vapor > Humidity, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, Earth Science > Atmosphere > Precipitation > Precipitation Rate, Earth Science > Atmosphere > Precipitation > Rain, east, eastward, eastward_wind, environmental, flux, ground, heading, heat, heat flux, humidity, identifier, insolation, laboratory, latitude, level, longitude, marine, measurements, met, meteorology, minute, nav, noaa, north, northward, northward_wind, orientation, over, pacific, platform, platform_course, platform_orientation, platform_speed_wrt_ground, pmel, precipitation, pressure, radiation, rain, rain_rate, rainfall, rainfall_rate, rate, relative, relative_humidity, relative_wind_direction, relative_wind_speed, science, sea, seawater, ship, ship_course, ship_heading, ship_speed, shortwave, speed, static, surface, temperature, time, trajectory, trajectory_id, vapor, water, wind, wind_direction, wind_from_direction, wind_speed, wind_u, wind_v, winds, wrt
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 15.8652
attribute NC_GLOBAL platform String RHBrown
attribute NC_GLOBAL product_version String 1
attribute NC_GLOBAL project String ATOMIC
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 12.7865
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 2020-02-11T23:59:00Z
attribute NC_GLOBAL time_coverage_start String 2020-01-07T18:00:00Z
attribute NC_GLOBAL title String PMEL Atmospheric Chemistry ATOMIC MET_NAV 1 minute data
attribute NC_GLOBAL Westernmost_Easting double -59.6588
attribute NC_GLOBAL Westernnmost_Easting double -59.6588
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.57842E9, 1.58146554E9
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 12.7865, 15.8652
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 instrument String GPS
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 -59.6588, -50.9246
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 instrument String GPS
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 air_temp   double  
attribute air_temp _FillValue double -1.0E34
attribute air_temp actual_range double 22.0983, 29.0467
attribute air_temp colorBarMaximum double 40.0
attribute air_temp colorBarMinimum double -10.0
attribute air_temp comment String One minute averages in degrees C. The following data sources were used. The PMEL Vaisala WXT536 and the PMEL Vaisala WXT520 sensor (both on the sampling aerosol mast at 17 m above sea level) and the NOAA PSD sensor on the bow foremast also at 17 meters above the sea surface. These 3 sensors generally agreed to better than 0.5 deg C. For this project the average of the two PMEL WXT sensors was used. During periods of missing data in the PMEL record the PSD sensor was used.
attribute air_temp epic_code String 3051
attribute air_temp instrument String Vaisala WXT536(s/n:);Vaisala WXT520(s/n:)
attribute air_temp ioos_category String Temperature
attribute air_temp long_name String Air Temperature
attribute air_temp missing_value double -999.0
attribute air_temp source String surface observation
attribute air_temp standard_name String air_temperature
attribute air_temp units String degree_C
attribute air_temp valid_max double 60.0
attribute air_temp valid_min double -50.0
variable rh   double  
attribute rh _FillValue double -1.0E34
attribute rh actual_range double 44.8492, 84.2358
attribute rh colorBarMaximum double 100.0
attribute rh colorBarMinimum double 0.0
attribute rh comment String One minute averages in %. The following data sources were used. The PMEL Vaisala WXT536 and the PMEL Vaisala WXT520 sensor (both on the sampling aerosol mast at 17 m above sea level) and the NOAA PSD sensor on the bow foremast also at 17 meters above the sea surface. These 3 sensors generally agreed within 5% in rh. For this project the average of the two PMEL WXT sensors was used. During periods of missing data in the PMEL record the PSD sensor was used.
attribute rh epic_code String 910
attribute rh instrument String Vaisala WXT536 (s/n:); Vaisala WXT520 (s/n:)
attribute rh ioos_category String Meteorology
attribute rh long_name String Relative Humidity
attribute rh missing_value double -999.0
attribute rh source String surface observation
attribute rh standard_name String relative_humidity
attribute rh units String percent
attribute rh valid_max double 100.0
attribute rh valid_min double 0.0
variable rain_rate   double  
attribute rain_rate _FillValue double -1.0E34
attribute rain_rate actual_range double 0.0, 66.2212
attribute rain_rate colorBarMaximum double 1.0E-4
attribute rain_rate colorBarMinimum double 0.0
attribute rain_rate comment String The rain rate, in mm/hr, was measured by the PMEL-Vaisala WX520 and WX536 Met sensors located near the top of the aerosol sampling mast. The average of the two sensors was used. During periods of high wind speed (above about 15 m/s), sea spray causes drops that will impact the rain sensor and register as rain, thus there are periods where rain is recorded when there is no rain falling. We have no way of editing this out of the data record so the measured rain rate at these higher wind speeds is unreliable.
attribute rain_rate epic_code String 962
attribute rain_rate instrument String Vaisala WXT536 (sn:); Vaisala WXT520 (sn:)
attribute rain_rate ioos_category String Meteorology
attribute rain_rate long_name String Rain Rate
attribute rain_rate missing_value double -999.0
attribute rain_rate source String surface observation
attribute rain_rate standard_name String rainfall_rate
attribute rain_rate units String mm hour-1
attribute rain_rate valid_max double 200.0
attribute rain_rate valid_min double 0.0
variable insolation   double  
attribute insolation _FillValue double -1.0E34
attribute insolation actual_range double 0.0, 1180.43
attribute insolation colorBarMaximum double 10.0
attribute insolation colorBarMinimum double -10.0
attribute insolation comment String One minute averages in units of watts per square meter. Total solar radiation was measured with an Epply black and white pyranometer (horizontal surface receiver -180, model 8-48, serial number 12946) and an Epply precision pyranometer (horizontal surface receiver -180, twin hemispheres, model PSP, serial number 133035F3) that were mounted on the top of Areophys van. Both instruments were calibrated by the Epply Laboratory on October 11, 1994. There were times when the sampling mast shaded one or both sensors. There were also times when the ship's mast/bridge shaded the sensors. The shaded data have not been edited out of the 1 minute data record. The data reported here are from the model 8-48, serial number 12946 radiometer and are in watts per square meter and are the average value over the 1 minute sampling period.
attribute insolation epic_code String 133
attribute insolation instrument String Epply black and white pyranometer (horizontal surface receiver -180, model 8-48, sn: 12946); Epply precision pyranometer (horizontal surface receiver -180, twin hemispheres, model PSP, sn: 133035F3)
attribute insolation ioos_category String Heat Flux
attribute insolation long_name String Shortwave Flux
attribute insolation missing_value double -999.0
attribute insolation source String surface observation
attribute insolation standard_name String diffuse_downwelling_shortwave_flux_in_air
attribute insolation units String W m-2
attribute insolation valid_max double 1200.0
attribute insolation valid_min double 0.0
variable baro_pressure   double  
attribute baro_pressure _FillValue double -1.0E34
attribute baro_pressure actual_range double 1011.56, 1020.39
attribute baro_pressure colorBarMaximum double 1050.0
attribute baro_pressure colorBarMinimum double 950.0
attribute baro_pressure comment String One minute averages in units of mb. There were two sources of raw data, the PMEL WXT sensors (corrected to sea level) and the NOAA PSD sensor (corrected to sea level). For this project the average of the sea level corrected PMEL WXT sensors was used. Missing data were filled in with the PSD sea level corrected pressure.
attribute baro_pressure epic_code String 915
attribute baro_pressure instrument String Vaisala WXT536 (sn:); Vaisala WXT520 (sn:)
attribute baro_pressure ioos_category String Pressure
attribute baro_pressure long_name String Barometric Pressure
attribute baro_pressure missing_value double -999.0
attribute baro_pressure source String surface observation
attribute baro_pressure standard_name String air_pressure
attribute baro_pressure units String hPa
attribute baro_pressure valid_max double 1100.0
attribute baro_pressure valid_min double 600.0
variable wind_speed   double  
attribute wind_speed _FillValue double -1.0E34
attribute wind_speed actual_range double 0.448341, 18.998
attribute wind_speed colorBarMaximum double 15.0
attribute wind_speed colorBarMinimum double 0.0
attribute wind_speed comment String The primary source for the true wind data was the average of the PMEL Vaisala WX520 and WX536 sonic anemometers, both located on the aerosol sampling mast, 17 m above sea level. For periods of missing data the average of the ship’s two WXT sensors, located above the ship’s navigation bridge, were used. True wind speed (wind_speed) and direction (wind_direction) were calculated from the relative wind taking into account the ship's motion from the GPS and the ship heading (ship_heading) from the GPS compass. The true wind vector is given as wind speed in m/s and wind direction in compass degrees (0 degrees meaning wind arriving from the north). The wind_u and wind_v are the east and north components of the wind vector in m/s. wind_u and wind_v are positive for wind going in the east and north directions..
attribute wind_speed epic_code String 404
attribute wind_speed instrument String Vaisala WXT536 (sn:); Vaisala WXT520 (sn:)
attribute wind_speed ioos_category String Wind
attribute wind_speed long_name String Wind Speed
attribute wind_speed missing_value double -999.0
attribute wind_speed source String surface observation
attribute wind_speed standard_name String wind_speed
attribute wind_speed units String m s-1
attribute wind_speed valid_max double 60.0
attribute wind_speed valid_min double 0.0
variable wind_direction   double  
attribute wind_direction _FillValue double -1.0E34
attribute wind_direction actual_range double 5.5438, 288.918
attribute wind_direction colorBarMaximum double 360.0
attribute wind_direction colorBarMinimum double 0.0
attribute wind_direction comment String The primary source for the true wind data was the average of the PMEL Vaisala WX520 and WX536 sonic anemometers, both located on the aerosol sampling mast, 17 m above sea level. For periods of missing data the average of the ship’s two WXT sensors, located above the ship’s navigation bridge, were used. True wind speed (wind_speed) and direction (wind_direction) were calculated from the relative wind taking into account the ship's motion from the GPS and the ship heading (ship_heading) from the GPS compass. The true wind vector is given as wind speed in m/s and wind direction in compass degrees (0 degrees meaning wind arriving from the north). The wind_u and wind_v are the east and north components of the wind vector in m/s. wind_u and wind_v are positive for wind going in the east and north directions..
attribute wind_direction epic_code String 412
attribute wind_direction instrument String Vaisala WXT536 (sn:); Vaisala WXT520 (sn:)
attribute wind_direction ioos_category String Wind
attribute wind_direction long_name String Wind Direction
attribute wind_direction missing_value double -999.0
attribute wind_direction source String surface observation
attribute wind_direction standard_name String wind_from_direction
attribute wind_direction units String degree
attribute wind_direction valid_max double 360.0
attribute wind_direction valid_min double 0.0
variable wind_u   double  
attribute wind_u _FillValue double -1.0E34
attribute wind_u actual_range double -18.0162, 3.37084
attribute wind_u colorBarMaximum double 15.0
attribute wind_u colorBarMinimum double -15.0
attribute wind_u comment String The primary source for the true wind data was the average of the PMEL Vaisala WX520 and WX536 sonic anemometers, both located on the aerosol sampling mast, 17 m above sea level. For periods of missing data the average of the ship’s two WXT sensors, located above the ship’s navigation bridge, were used. True wind speed (wind_speed) and direction (wind_direction) were calculated from the relative wind taking into account the ship's motion from the GPS and the ship heading (ship_heading) from the GPS compass. The true wind vector is given as wind speed in m/s and wind direction in compass degrees (0 degrees meaning wind arriving from the north). The wind_u and wind_v are the east and north components of the wind vector in m/s. wind_u and wind_v are positive for wind going in the east and north directions..
attribute wind_u epic_code String 430
attribute wind_u instrument String Vaisala WXT536 (sn:); Vaisala WXT520 (sn:)
attribute wind_u ioos_category String Wind
attribute wind_u long_name String east component of the wind
attribute wind_u missing_value double -999.0
attribute wind_u source String surface observation
attribute wind_u standard_name String eastward_wind
attribute wind_u units String m s-1
attribute wind_u valid_max double 60.0
attribute wind_u valid_min double -60.0
variable wind_v   double  
attribute wind_v _FillValue double -1.0E34
attribute wind_v actual_range double -10.9351, 7.08239
attribute wind_v colorBarMaximum double 15.0
attribute wind_v colorBarMinimum double -15.0
attribute wind_v comment String The primary source for the true wind data was the average of the PMEL Vaisala WX520 and WX536 sonic anemometers, both located on the aerosol sampling mast, 17 m above sea level. For periods of missing data the average of the ship’s two WXT sensors, located above the ship’s navigation bridge, were used. True wind speed (wind_speed) and direction (wind_direction) were calculated from the relative wind taking into account the ship's motion from the GPS and the ship heading (ship_heading) from the GPS compass. The true wind vector is given as wind speed in m/s and wind direction in compass degrees (0 degrees meaning wind arriving from the north). The wind_u and wind_v are the east and north components of the wind vector in m/s. wind_u and wind_v are positive for wind going in the east and north directions..
attribute wind_v epic_code String 431
attribute wind_v instrument String Vaisala WXT536 (sn:); Vaisala WXT520 (sn:)
attribute wind_v ioos_category String Wind
attribute wind_v long_name String north component of the wind
attribute wind_v missing_value double -999.0
attribute wind_v source String surface observation
attribute wind_v standard_name String northward_wind
attribute wind_v units String m s-1
attribute wind_v valid_max double 60.0
attribute wind_v valid_min double -60.0
variable ship_speed   double  
attribute ship_speed _FillValue double -1.0E34
attribute ship_speed actual_range double 0.0, 13.5512
attribute ship_speed colorBarMaximum double 30.0
attribute ship_speed colorBarMinimum double 0.0
attribute ship_speed comment String The ship_speed in knots (Speed Over Ground) and ship_course in compass degrees (Course Over Ground) are the one minute averages from the GPS (the PMEL GPS as the primary source, the Ship's GPS was the secondary source). To make the one minute averages the 1-second recorded motion vector was separated into east and north components that were averaged into one minute bins. The one minute components were then combined into the ship Velocity Vector. The ship_heading in compass degrees is the one minute average heading. The primary source was the PMEL GPS compass (Si-TEX Vector Pro), the ship gyro compass data were used when the primary data were missing. The 1-second data were separated into an east and north component before averaging and then recombined. NOTE: The ship_course is the direction the ship is moving. The ship_heading is the direction the ship's bow is pointing. When the ship is moving at 6 or more knots they generally are the same. Due to water currents, at slow speeds there can be quite a difference between the two. When the ship is stationary, the two are totally unrelated.
attribute ship_speed epic_code String 3080
attribute ship_speed instrument String GPS compass (Si-TEX Vector Pro); ship gyro compass
attribute ship_speed ioos_category String Unknown
attribute ship_speed long_name String Ship Speed over Ground
attribute ship_speed missing_value double -999.0
attribute ship_speed source String surface observation
attribute ship_speed standard_name String platform_speed_wrt_ground
attribute ship_speed units String knots
attribute ship_speed valid_max double 25.0
attribute ship_speed valid_min double 0.0
variable ship_course   double  
attribute ship_course _FillValue double -1.0E34
attribute ship_course actual_range double 0.0, 360.0
attribute ship_course colorBarMaximum double 400.0
attribute ship_course colorBarMinimum double 0.0
attribute ship_course comment String The ship_speed in knots (Speed Over Ground) and ship_course in compass degrees (Course Over Ground) are the one minute averages from the GPS (the PMEL GPS as the primary source, the Ship's GPS was the secondary source). To make the one minute averages the 1-second recorded motion vector was separated into east and north components that were averaged into one minute bins. The one minute components were then combined into the ship Velocity Vector. The ship_heading in compass degrees is the one minute average heading. The primary source was the PMEL GPS compass (Si-TEX Vector Pro), the ship gyro compass data were used when the primary data were missing. The 1-second data were separated into an east and north component before averaging and then recombined. NOTE: The ship_course is the direction the ship is moving. The ship_heading is the direction the ship's bow is pointing. When the ship is moving at 6 or more knots they generally are the same. Due to water currents, at slow speeds there can be quite a difference between the two. When the ship is stationary, the two are totally unrelated.
attribute ship_course epic_code String 3070
attribute ship_course instrument String GPS compass (Si-TEX Vector Pro); ship gyro compass
attribute ship_course ioos_category String Unknown
attribute ship_course long_name String Ship Course over Ground
attribute ship_course missing_value double -999.0
attribute ship_course source String surface observation
attribute ship_course standard_name String platform_course
attribute ship_course units String degree
attribute ship_course valid_max double 360.0
attribute ship_course valid_min double 0.0
variable ship_heading   double  
attribute ship_heading _FillValue double -1.0E34
attribute ship_heading actual_range double 0.00483233, 359.995
attribute ship_heading colorBarMaximum double 400.0
attribute ship_heading colorBarMinimum double 0.0
attribute ship_heading comment String The ship_speed in knots (Speed Over Ground) and ship_course in compass degrees (Course Over Ground) are the one minute averages from the GPS (the PMEL GPS as the primary source, the Ship's GPS was the secondary source). To make the one minute averages the 1-second recorded motion vector was separated into east and north components that were averaged into one minute bins. The one minute components were then combined into the ship Velocity Vector. The ship_heading in compass degrees is the one minute average heading. The primary source was the PMEL GPS compass (Si-TEX Vector Pro), the ship gyro compass data were used when the primary data were missing. The 1-second data were separated into an east and north component before averaging and then recombined. NOTE: The ship_course is the direction the ship is moving. The ship_heading is the direction the ship's bow is pointing. When the ship is moving at 6 or more knots they generally are the same. Due to water currents, at slow speeds there can be quite a difference between the two. When the ship is stationary, the two are totally unrelated.
attribute ship_heading epic_code String 3061
attribute ship_heading instrument String GPS compass (Si-TEX Vector Pro); ship gyro compass
attribute ship_heading ioos_category String Unknown
attribute ship_heading long_name String Ship Heading
attribute ship_heading missing_value double -999.0
attribute ship_heading source String surface observation
attribute ship_heading standard_name String platform_orientation
attribute ship_heading units String degree
attribute ship_heading valid_max double 360.0
attribute ship_heading valid_min double 0.0
variable relative_wind_speed   double  
attribute relative_wind_speed _FillValue double -1.0E34
attribute relative_wind_speed actual_range double 0.01138, 21.1417
attribute relative_wind_speed colorBarMaximum double 15.0
attribute relative_wind_speed colorBarMinimum double 0.0
attribute relative_wind_speed comment String The primary source for the relative wind data was the PMEL Vaisala WX520 and WX536 sonic anemometers, located on the aerosol sampling mast. For periods of missing data, the PSD Sonic anemometer on the ship’s foremast was used. The one second relative wind speed and direction data were separated into orthogonal components of "keel" and "beam". These components were averaged into 1 minute averages, and then recombined to relative wind vectors. Wind speed is reported in meters per second and wind direction is in degrees with -90 being wind approaching the ship on the port beam, 0 degrees being wind approaching the ship directly on the bow, and +90 degrees being wind approaching the ship on the starboard beam.
attribute relative_wind_speed epic_code String 405
attribute relative_wind_speed instrument String Vaisala WXT536 (sn:); Vaisala WXT520 (sn:)
attribute relative_wind_speed ioos_category String Wind
attribute relative_wind_speed long_name String Wind Speed Relative to Ship
attribute relative_wind_speed missing_value double -999.0
attribute relative_wind_speed source String surface observation
attribute relative_wind_speed standard_name String wind_speed
attribute relative_wind_speed units String m s-1
attribute relative_wind_speed valid_max double 60.0
attribute relative_wind_speed valid_min double 0.0
variable relative_wind_direction   double  
attribute relative_wind_direction _FillValue double -1.0E34
attribute relative_wind_direction actual_range double -179.98, 179.673
attribute relative_wind_direction colorBarMaximum double 360.0
attribute relative_wind_direction colorBarMinimum double 0.0
attribute relative_wind_direction comment String The primary source for the relative wind data was the PMEL Vaisala WX520 and WX536 sonic anemometers, located on the aerosol sampling mast. For periods of missing data, the PSD Sonic anemometer on the ship’s foremast was used. The one second relative wind speed and direction data were separated into orthogonal components of "keel" and "beam". These components were averaged into 1 minute averages, and then recombined to relative wind vectors. Wind speed is reported in meters per second and wind direction is in degrees with -90 being wind approaching the ship on the port beam, 0 degrees being wind approaching the ship directly on the bow, and +90 degrees being wind approaching the ship on the starboard beam.
attribute relative_wind_direction epic_code String 414
attribute relative_wind_direction instrument String Vaisala WXT536 (sn:); Vaisala WXT520 (sn:)
attribute relative_wind_direction ioos_category String Wind
attribute relative_wind_direction long_name String Wind Direction Relative to Ship
attribute relative_wind_direction missing_value double -999.0
attribute relative_wind_direction source String surface observation
attribute relative_wind_direction standard_name String wind_from_direction
attribute relative_wind_direction units String degree
attribute relative_wind_direction valid_max double 180.0
attribute relative_wind_direction valid_min double -180.0

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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