Dataset: Monthly N₂O data from San Cristobal

Name: Monthly atmospheric nitrous oxide (N₂O) and carbon monoxide (CO) mixing ratio measurements from San Cristobal, Galápagos Islands collected using a cavity ring-down spectrometer
Published: 2024-11-19
Keywords: nitrous oxide, oxygen minimum zones, denitrification, nitrification, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.917743.2

Spatial Extent: N:-0.8956 E:-89.6087 S:-0.8956 W:-89.6087

Temporal Extent: 2023-07-18 - 2024-06-30

Project:

EAGER: Testing the Galápagos as a long-term monitoring site for nitrous oxide emissions from the Pacific oxygen deficient zones (ETP ODZ mapping)

Principal Investigator:

Andrew R. Babbin (Massachusetts Institute of Technology, MIT)

Student:

Timur Cinay (Massachusetts Institute of Technology, MIT)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2024-11-19

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Monthly atmospheric nitrous oxide (N₂O) and carbon monoxide (CO) mixing ratio measurements from San Cristobal, Galápagos Islands collected using a cavity ring-down spectrometer

Abstract:

This dataset includes atmospheric nitrous oxide (N₂O) and carbon monoxide (CO) mixing ratio measurements from San Cristobal, Galápagos Islands between July 18, 2023 and June 30, 2024. The data are collected using a cavity ring-down spectrometer (Picarro Inc., G5310).

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2024-11-19	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.917743.2	2024-11-22
2024-01-22	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.917743.1	2024-01-23

Description

This version of the dataset includes 12 NetCDF files, accessible below under "Data Files":

(1) GAL202307_N2O_CO.nc for the time period 2023-07-18 to 2023-07-31 (yyyy-mm-dd)

(2) GAL202308_N2O_CO.nc for the time period 2023-08-01 to 2023-08-31

(3) GAL202309_N2O_CO.nc for the time period 2023-09-01 to 2023-09-30

(4) GAL202310_N2O_CO.nc for the time period 2023-10-01 to 2023-10-31

(5) GAL202311_N2O_CO.nc for the time period 2023-11-01 to 2023-11-30

(6) GAL202312_N2O_CO.nc for the time period 2023-12-01 to 2023-12-31

(7)GAL202401_N2O_CO.nc for the time period 2024-01-01 to 2024-01-31

(8) GAL202402_N2O_CO.nc for the time period 2024-01-02 to 2024-02-29

(9) GAL202403_N2O_CO.nc for the time period 2024-03-01 to 2024-03-31

(10) GAL202404_N2O_CO.nc for the time period 2024-04-01 to 2024-04-30

(11) GAL202405_N2O_CO.nc for the time period 2024-05-01 to 2024-05-31

(12) GAL202406_N2O_CO.nc for the time period 2024-06-01 to 2024-06-30

Methods & Sampling

Ambient air samples are collected with a flow rate of 100 cubic centimeters (cm³ per minute from 27 meters (m) above sea level. The air is first filtered through a 0.7 micrometer (µm) Swagelok filter. Then, the air is dried using a Nafion tubing to a constant water content of approximately 600 parts per million (ppm) H₂O in a temperature-controlled setup at 34 degrees Celsius (°C). The air sample is then filtered through a 0.2 µm Swagelok filter. Finally, the nitrous oxide and carbon monoxide mole fractions (parts per billion (ppb)) are measured using Picarro Inc., G5310 Cavity Ring-down Spectrometer. GCWerks software is used to monitor and control the sampling process as well as export the measurement data. The NetCDF files are created using the Xarray package for Python 3.10.

Problems/Issues

The gaps in the data correspond to the daily and monthly sampling of calibration cylinders and instrument downtimes due to communication or hardware-related issues.

Data Processing Description

Data are processed using GCWerks software. Raw data are calibrated based on measurements from the calibration gas cylinders provided by the National Oceanic and Atmospheric Administration (NOAA).

BCO-DMO Processing

Version 1 of this dataset was published on 2024-01-22. Version 1 has been archived under DOI 10.26008/1912/bco-dmo.917743.1 and includes files covering the time period from 2023-07-18 to 2023-12-31.

Version 2 of this dataset was published on 2024-11-19. Version 2 includes files covering the time period from 2023-07-18 to 2024-06-30. Previous files have been updated/replaced; version 2 supersedes version 1.

Data Files

File
GAL202307_N2O_CO.nc (NetCDF, 2.18 MB) MD5:7688d1dfbedbc806b8090650522b9225 Primary data file for BCO-DMO dataset ID 917743, version 2. Dates: 2023-07-18 to 2023-07-31 netcdf GAL202307_N2O_CO { dimensions: time = 18820 ; variables: double n2o_mean(time) ; n2o_mean:_FillValue = NaN ; n2o_mean:long_name = "mean nitrous oxide mole fraction" ; n2o_mean:units = "ppb" ; n2o_mean:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_stdev(time) ; n2o_stdev:_FillValue = NaN ; n2o_stdev:long_name = "nitrous oxide mole fraction standard deviation" ; n2o_stdev:units = "ppb" ; n2o_stdev:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_number(time) ; n2o_number:_FillValue = NaN ; n2o_number:long_name = "number of n2o measurements averaged in each time stamp" ; n2o_number:units = "unitless" ; double co_mean(time) ; co_mean:_FillValue = NaN ; co_mean:long_name = "mean carbon monoxide mole fraction" ; co_mean:units = "ppb" ; co_mean:scale = "NOAA-WMO-CO_X2014A" ; double co_stdev(time) ; co_stdev:_FillValue = NaN ; co_stdev:long_name = "carbon monoxide mole fraction standard deviation" ; co_stdev:units = "ppb" ; co_stdev:scale = "NOAA-WMO-CO_X2014A" ; double co_number(time) ; co_number:_FillValue = NaN ; co_number:long_name = "number of co measurements averaged in each time stamp" ; co_number:units = "unitless" ; string time_string(time) ; time_string:long_name = "Time stamp corresponding to the samping time in string format" ; time_string:timezone = "UTC" ; int64 time(time) ; time:timezone = "UTC" ; time:long_name = "Time stamp corresponding to the samping time" ; time:units = "minutes since 2023-07-18 16:21:00" ; time:calendar = "proleptic_gregorian" ; // global attributes: :Site = "San Crisotbal, Galapagos Islands, Ecuador" ; string :Latitude = "0.8956 °S " ; string :Longitude = "89.6087 °W" ; :Inlet\ Height = "27 m above sea level" ; :Contact = "tcinay[at]mit[dot]edu or babbin[at]mit[dot]edu" ; :Instrument = "Picarro Inc. G5310 Cavity Ringdown Spectrometer" ; :Software = "GCWerks" ; }
GAL202308_N2O_CO.nc (NetCDF, 4.97 MB) MD5:9b0db3a016db6759aaea40babf822bf7 Primary data file for BCO-DMO dataset ID 917743, version 2. Dates: 2023-08-01 to 2023-08-31 netcdf GAL202308_N2O_CO { dimensions: time = 43103 ; variables: double n2o_mean(time) ; n2o_mean:_FillValue = NaN ; n2o_mean:long_name = "mean nitrous oxide mole fraction" ; n2o_mean:units = "ppb" ; n2o_mean:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_stdev(time) ; n2o_stdev:_FillValue = NaN ; n2o_stdev:long_name = "nitrous oxide mole fraction standard deviation" ; n2o_stdev:units = "ppb" ; n2o_stdev:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_number(time) ; n2o_number:_FillValue = NaN ; n2o_number:long_name = "number of n2o measurements averaged in each time stamp" ; n2o_number:units = "unitless" ; double co_mean(time) ; co_mean:_FillValue = NaN ; co_mean:long_name = "mean carbon monoxide mole fraction" ; co_mean:units = "ppb" ; co_mean:scale = "NOAA-WMO-CO_X2014A" ; double co_stdev(time) ; co_stdev:_FillValue = NaN ; co_stdev:long_name = "carbon monoxide mole fraction standard deviation" ; co_stdev:units = "ppb" ; co_stdev:scale = "NOAA-WMO-CO_X2014A" ; double co_number(time) ; co_number:_FillValue = NaN ; co_number:long_name = "number of co measurements averaged in each time stamp" ; co_number:units = "unitless" ; string time_string(time) ; time_string:long_name = "Time stamp corresponding to the samping time in string format" ; time_string:timezone = "UTC" ; int64 time(time) ; time:timezone = "UTC" ; time:long_name = "Time stamp corresponding to the samping time" ; time:units = "minutes since 2023-08-01 00:00:00" ; time:calendar = "proleptic_gregorian" ; // global attributes: :Site = "San Crisotbal, Galapagos Islands, Ecuador" ; string :Latitude = "0.8956 °S " ; string :Longitude = "89.6087 °W" ; :Inlet\ Height = "27 m above sea level" ; :Contact = "tcinay[at]mit[dot]edu or babbin[at]mit[dot]edu" ; :Instrument = "Picarro Inc. G5310 Cavity Ringdown Spectrometer" ; :Software = "GCWerks" ; }
GAL202309_N2O_CO.nc (NetCDF, 4.85 MB) MD5:a720d8df000b313d9cef8522ab3618a1 Primary data file for BCO-DMO dataset ID 917743, version 2. Dates: 2023-09-01 to 2023-09-30 netcdf GAL202309_N2O_CO { dimensions: time = 42245 ; variables: double n2o_mean(time) ; n2o_mean:_FillValue = NaN ; n2o_mean:long_name = "mean nitrous oxide mole fraction" ; n2o_mean:units = "ppb" ; n2o_mean:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_stdev(time) ; n2o_stdev:_FillValue = NaN ; n2o_stdev:long_name = "nitrous oxide mole fraction standard deviation" ; n2o_stdev:units = "ppb" ; n2o_stdev:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_number(time) ; n2o_number:_FillValue = NaN ; n2o_number:long_name = "number of n2o measurements averaged in each time stamp" ; n2o_number:units = "unitless" ; double co_mean(time) ; co_mean:_FillValue = NaN ; co_mean:long_name = "mean carbon monoxide mole fraction" ; co_mean:units = "ppb" ; co_mean:scale = "NOAA-WMO-CO_X2014A" ; double co_stdev(time) ; co_stdev:_FillValue = NaN ; co_stdev:long_name = "carbon monoxide mole fraction standard deviation" ; co_stdev:units = "ppb" ; co_stdev:scale = "NOAA-WMO-CO_X2014A" ; double co_number(time) ; co_number:_FillValue = NaN ; co_number:long_name = "number of co measurements averaged in each time stamp" ; co_number:units = "unitless" ; string time_string(time) ; time_string:long_name = "Time stamp corresponding to the samping time in string format" ; time_string:timezone = "UTC" ; int64 time(time) ; time:timezone = "UTC" ; time:long_name = "Time stamp corresponding to the samping time" ; time:units = "minutes since 2023-09-01 00:00:00" ; time:calendar = "proleptic_gregorian" ; // global attributes: :Site = "San Crisotbal, Galapagos Islands, Ecuador" ; string :Latitude = "0.8956 °S " ; string :Longitude = "89.6087 °W" ; :Inlet\ Height = "27 m above sea level" ; :Contact = "tcinay[at]mit[dot]edu or babbin[at]mit[dot]edu" ; :Instrument = "Picarro Inc. G5310 Cavity Ringdown Spectrometer" ; :Software = "GCWerks" ; }
GAL202310_N2O_CO.nc (NetCDF, 4.99 MB) MD5:956a1ffe03d41f6c38ebcbabf30f16dd Primary data file for BCO-DMO dataset ID 917743, version 2. Dates: 2023-10-01 to 2023-10-31 netcdf GAL202310_N2O_CO { dimensions: time = 43317 ; variables: double n2o_mean(time) ; n2o_mean:_FillValue = NaN ; n2o_mean:long_name = "mean nitrous oxide mole fraction" ; n2o_mean:units = "ppb" ; n2o_mean:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_stdev(time) ; n2o_stdev:_FillValue = NaN ; n2o_stdev:long_name = "nitrous oxide mole fraction standard deviation" ; n2o_stdev:units = "ppb" ; n2o_stdev:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_number(time) ; n2o_number:_FillValue = NaN ; n2o_number:long_name = "number of n2o measurements averaged in each time stamp" ; n2o_number:units = "unitless" ; double co_mean(time) ; co_mean:_FillValue = NaN ; co_mean:long_name = "mean carbon monoxide mole fraction" ; co_mean:units = "ppb" ; co_mean:scale = "NOAA-WMO-CO_X2014A" ; double co_stdev(time) ; co_stdev:_FillValue = NaN ; co_stdev:long_name = "carbon monoxide mole fraction standard deviation" ; co_stdev:units = "ppb" ; co_stdev:scale = "NOAA-WMO-CO_X2014A" ; double co_number(time) ; co_number:_FillValue = NaN ; co_number:long_name = "number of co measurements averaged in each time stamp" ; co_number:units = "unitless" ; string time_string(time) ; time_string:long_name = "Time stamp corresponding to the samping time in string format" ; time_string:timezone = "UTC" ; int64 time(time) ; time:timezone = "UTC" ; time:long_name = "Time stamp corresponding to the samping time" ; time:units = "minutes since 2023-10-01 00:00:00" ; time:calendar = "proleptic_gregorian" ; // global attributes: :Site = "San Crisotbal, Galapagos Islands, Ecuador" ; string :Latitude = "0.8956 °S " ; string :Longitude = "89.6087 °W" ; :Inlet\ Height = "27 m above sea level" ; :Contact = "tcinay[at]mit[dot]edu or babbin[at]mit[dot]edu" ; :Instrument = "Picarro Inc. G5310 Cavity Ringdown Spectrometer" ; :Software = "GCWerks" ; }
GAL202311_N2O_CO.nc (NetCDF, 4.84 MB) MD5:9c05d0462064aad651b87f9d6bf1e196 Primary data file for BCO-DMO dataset ID 917743, version 2. Dates: 2023-11-01 to 2023-11-30 netcdf GAL202311_N2O_CO { dimensions: time = 42027 ; variables: double n2o_mean(time) ; n2o_mean:_FillValue = NaN ; n2o_mean:long_name = "mean nitrous oxide mole fraction" ; n2o_mean:units = "ppb" ; n2o_mean:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_stdev(time) ; n2o_stdev:_FillValue = NaN ; n2o_stdev:long_name = "nitrous oxide mole fraction standard deviation" ; n2o_stdev:units = "ppb" ; n2o_stdev:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_number(time) ; n2o_number:_FillValue = NaN ; n2o_number:long_name = "number of n2o measurements averaged in each time stamp" ; n2o_number:units = "unitless" ; double co_mean(time) ; co_mean:_FillValue = NaN ; co_mean:long_name = "mean carbon monoxide mole fraction" ; co_mean:units = "ppb" ; co_mean:scale = "NOAA-WMO-CO_X2014A" ; double co_stdev(time) ; co_stdev:_FillValue = NaN ; co_stdev:long_name = "carbon monoxide mole fraction standard deviation" ; co_stdev:units = "ppb" ; co_stdev:scale = "NOAA-WMO-CO_X2014A" ; double co_number(time) ; co_number:_FillValue = NaN ; co_number:long_name = "number of co measurements averaged in each time stamp" ; co_number:units = "unitless" ; string time_string(time) ; time_string:long_name = "Time stamp corresponding to the samping time in string format" ; time_string:timezone = "UTC" ; int64 time(time) ; time:timezone = "UTC" ; time:long_name = "Time stamp corresponding to the samping time" ; time:units = "minutes since 2023-11-01 00:00:00" ; time:calendar = "proleptic_gregorian" ; // global attributes: :Site = "San Crisotbal, Galapagos Islands, Ecuador" ; string :Latitude = "0.8956 °S " ; string :Longitude = "89.6087 °W" ; :Inlet\ Height = "27 m above sea level" ; :Contact = "tcinay[at]mit[dot]edu or babbin[at]mit[dot]edu" ; :Instrument = "Picarro Inc. G5310 Cavity Ringdown Spectrometer" ; :Software = "GCWerks" ; }
GAL202312_N2O_CO.nc (NetCDF, 4.99 MB) MD5:9c2134c83692e750ae6388eb6eabd916 Primary data file for BCO-DMO dataset ID 917743, version 2. Dates: 2023-12-01 to 2023-12-31 netcdf GAL202312_N2O_CO { dimensions: time = 43284 ; variables: double n2o_mean(time) ; n2o_mean:_FillValue = NaN ; n2o_mean:long_name = "mean nitrous oxide mole fraction" ; n2o_mean:units = "ppb" ; n2o_mean:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_stdev(time) ; n2o_stdev:_FillValue = NaN ; n2o_stdev:long_name = "nitrous oxide mole fraction standard deviation" ; n2o_stdev:units = "ppb" ; n2o_stdev:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_number(time) ; n2o_number:_FillValue = NaN ; n2o_number:long_name = "number of n2o measurements averaged in each time stamp" ; n2o_number:units = "unitless" ; double co_mean(time) ; co_mean:_FillValue = NaN ; co_mean:long_name = "mean carbon monoxide mole fraction" ; co_mean:units = "ppb" ; co_mean:scale = "NOAA-WMO-CO_X2014A" ; double co_stdev(time) ; co_stdev:_FillValue = NaN ; co_stdev:long_name = "carbon monoxide mole fraction standard deviation" ; co_stdev:units = "ppb" ; co_stdev:scale = "NOAA-WMO-CO_X2014A" ; double co_number(time) ; co_number:_FillValue = NaN ; co_number:long_name = "number of co measurements averaged in each time stamp" ; co_number:units = "unitless" ; string time_string(time) ; time_string:long_name = "Time stamp corresponding to the samping time in string format" ; time_string:timezone = "UTC" ; int64 time(time) ; time:timezone = "UTC" ; time:long_name = "Time stamp corresponding to the samping time" ; time:units = "minutes since 2023-12-01 00:00:00" ; time:calendar = "proleptic_gregorian" ; // global attributes: :Site = "San Crisotbal, Galapagos Islands, Ecuador" ; string :Latitude = "0.8956 °S " ; string :Longitude = "89.6087 °W" ; :Inlet\ Height = "27 m above sea level" ; :Contact = "tcinay[at]mit[dot]edu or babbin[at]mit[dot]edu" ; :Instrument = "Picarro Inc. G5310 Cavity Ringdown Spectrometer" ; :Software = "GCWerks" ; }
GAL202401_N2O_CO.nc (NetCDF, 4.94 MB) MD5:18bb4b26554c1380f910003bbc68c22b Primary data file for BCO-DMO dataset ID 917743, version 2. Dates: 2024-01-01 to 2024-01-31 netcdf GAL202401_N2O_CO { dimensions: time = 43061 ; variables: double n2o_mean(time) ; n2o_mean:_FillValue = NaN ; n2o_mean:long_name = "mean nitrous oxide mole fraction" ; n2o_mean:units = "ppb" ; n2o_mean:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_stdev(time) ; n2o_stdev:_FillValue = NaN ; n2o_stdev:long_name = "nitrous oxide mole fraction standard deviation" ; n2o_stdev:units = "ppb" ; n2o_stdev:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_number(time) ; n2o_number:_FillValue = NaN ; n2o_number:long_name = "number of n2o measurements averaged in each time stamp" ; n2o_number:units = "unitless" ; double co_mean(time) ; co_mean:_FillValue = NaN ; co_mean:long_name = "mean carbon monoxide mole fraction" ; co_mean:units = "ppb" ; co_mean:scale = "NOAA-WMO-CO_X2014A" ; double co_stdev(time) ; co_stdev:_FillValue = NaN ; co_stdev:long_name = "carbon monoxide mole fraction standard deviation" ; co_stdev:units = "ppb" ; co_stdev:scale = "NOAA-WMO-CO_X2014A" ; double co_number(time) ; co_number:_FillValue = NaN ; co_number:long_name = "number of co measurements averaged in each time stamp" ; co_number:units = "unitless" ; string time_string(time) ; time_string:long_name = "Time stamp corresponding to the samping time in string format" ; time_string:timezone = "UTC" ; int64 time(time) ; time:timezone = "UTC" ; time:long_name = "Time stamp corresponding to the samping time" ; time:units = "minutes since 2024-01-01 00:00:00" ; time:calendar = "proleptic_gregorian" ; // global attributes: :Site = "San Crisotbal, Galapagos Islands, Ecuador" ; string :Latitude = "0.8956 °S " ; string :Longitude = "89.6087 °W" ; :Inlet\ Height = "27 m above sea level" ; :Contact = "tcinay[at]mit[dot]edu or babbin[at]mit[dot]edu" ; :Instrument = "Picarro Inc. G5310 Cavity Ringdown Spectrometer" ; :Software = "GCWerks" ; }
GAL202402_N2O_CO.nc (NetCDF, 4.53 MB) MD5:fb95490e9b74bae602ef96f7958f898e Primary data file for BCO-DMO dataset ID 917743, version 2. Dates: 2024-02-01 to 2024-02-29 netcdf GAL202402_N2O_CO { dimensions: time = 39441 ; variables: double n2o_mean(time) ; n2o_mean:_FillValue = NaN ; n2o_mean:long_name = "mean nitrous oxide mole fraction" ; n2o_mean:units = "ppb" ; n2o_mean:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_stdev(time) ; n2o_stdev:_FillValue = NaN ; n2o_stdev:long_name = "nitrous oxide mole fraction standard deviation" ; n2o_stdev:units = "ppb" ; n2o_stdev:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_number(time) ; n2o_number:_FillValue = NaN ; n2o_number:long_name = "number of n2o measurements averaged in each time stamp" ; n2o_number:units = "unitless" ; double co_mean(time) ; co_mean:_FillValue = NaN ; co_mean:long_name = "mean carbon monoxide mole fraction" ; co_mean:units = "ppb" ; co_mean:scale = "NOAA-WMO-CO_X2014A" ; double co_stdev(time) ; co_stdev:_FillValue = NaN ; co_stdev:long_name = "carbon monoxide mole fraction standard deviation" ; co_stdev:units = "ppb" ; co_stdev:scale = "NOAA-WMO-CO_X2014A" ; double co_number(time) ; co_number:_FillValue = NaN ; co_number:long_name = "number of co measurements averaged in each time stamp" ; co_number:units = "unitless" ; string time_string(time) ; time_string:long_name = "Time stamp corresponding to the samping time in string format" ; time_string:timezone = "UTC" ; int64 time(time) ; time:timezone = "UTC" ; time:long_name = "Time stamp corresponding to the samping time" ; time:units = "minutes since 2024-02-01 00:00:00" ; time:calendar = "proleptic_gregorian" ; // global attributes: :Site = "San Crisotbal, Galapagos Islands, Ecuador" ; string :Latitude = "0.8956 °S " ; string :Longitude = "89.6087 °W" ; :Inlet\ Height = "27 m above sea level" ; :Contact = "tcinay[at]mit[dot]edu or babbin[at]mit[dot]edu" ; :Instrument = "Picarro Inc. G5310 Cavity Ringdown Spectrometer" ; :Software = "GCWerks" ; }
GAL202403_N2O_CO.nc (NetCDF, 4.98 MB) MD5:40b4451efbb1903636f7d451d60d0d60 Primary data file for BCO-DMO dataset ID 917743, version 2. Dates: 2024-03-01 to 2024-03-31 netcdf GAL202403_N2O_CO { dimensions: time = 43268 ; variables: double n2o_mean(time) ; n2o_mean:_FillValue = NaN ; n2o_mean:long_name = "mean nitrous oxide mole fraction" ; n2o_mean:units = "ppb" ; n2o_mean:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_stdev(time) ; n2o_stdev:_FillValue = NaN ; n2o_stdev:long_name = "nitrous oxide mole fraction standard deviation" ; n2o_stdev:units = "ppb" ; n2o_stdev:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_number(time) ; n2o_number:_FillValue = NaN ; n2o_number:long_name = "number of n2o measurements averaged in each time stamp" ; n2o_number:units = "unitless" ; double co_mean(time) ; co_mean:_FillValue = NaN ; co_mean:long_name = "mean carbon monoxide mole fraction" ; co_mean:units = "ppb" ; co_mean:scale = "NOAA-WMO-CO_X2014A" ; double co_stdev(time) ; co_stdev:_FillValue = NaN ; co_stdev:long_name = "carbon monoxide mole fraction standard deviation" ; co_stdev:units = "ppb" ; co_stdev:scale = "NOAA-WMO-CO_X2014A" ; double co_number(time) ; co_number:_FillValue = NaN ; co_number:long_name = "number of co measurements averaged in each time stamp" ; co_number:units = "unitless" ; string time_string(time) ; time_string:long_name = "Time stamp corresponding to the samping time in string format" ; time_string:timezone = "UTC" ; int64 time(time) ; time:timezone = "UTC" ; time:long_name = "Time stamp corresponding to the samping time" ; time:units = "minutes since 2024-03-01 00:00:00" ; time:calendar = "proleptic_gregorian" ; // global attributes: :Site = "San Crisotbal, Galapagos Islands, Ecuador" ; string :Latitude = "0.8956 °S " ; string :Longitude = "89.6087 °W" ; :Inlet\ Height = "27 m above sea level" ; :Contact = "tcinay[at]mit[dot]edu or babbin[at]mit[dot]edu" ; :Instrument = "Picarro Inc. G5310 Cavity Ringdown Spectrometer" ; :Software = "GCWerks" ; }
GAL202404_N2O_CO.nc (NetCDF, 4.67 MB) MD5:bd823b59396fc5b1d1cba91491cd21e5 Primary data file for BCO-DMO dataset ID 917743, version 2. Dates: 2024-04-01 to 2024-04-30 netcdf GAL202404_N2O_CO { dimensions: time = 40545 ; variables: double n2o_mean(time) ; n2o_mean:_FillValue = NaN ; n2o_mean:long_name = "mean nitrous oxide mole fraction" ; n2o_mean:units = "ppb" ; n2o_mean:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_stdev(time) ; n2o_stdev:_FillValue = NaN ; n2o_stdev:long_name = "nitrous oxide mole fraction standard deviation" ; n2o_stdev:units = "ppb" ; n2o_stdev:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_number(time) ; n2o_number:_FillValue = NaN ; n2o_number:long_name = "number of n2o measurements averaged in each time stamp" ; n2o_number:units = "unitless" ; double co_mean(time) ; co_mean:_FillValue = NaN ; co_mean:long_name = "mean carbon monoxide mole fraction" ; co_mean:units = "ppb" ; co_mean:scale = "NOAA-WMO-CO_X2014A" ; double co_stdev(time) ; co_stdev:_FillValue = NaN ; co_stdev:long_name = "carbon monoxide mole fraction standard deviation" ; co_stdev:units = "ppb" ; co_stdev:scale = "NOAA-WMO-CO_X2014A" ; double co_number(time) ; co_number:_FillValue = NaN ; co_number:long_name = "number of co measurements averaged in each time stamp" ; co_number:units = "unitless" ; string time_string(time) ; time_string:long_name = "Time stamp corresponding to the samping time in string format" ; time_string:timezone = "UTC" ; int64 time(time) ; time:timezone = "UTC" ; time:long_name = "Time stamp corresponding to the samping time" ; time:units = "minutes since 2024-04-01 00:00:00" ; time:calendar = "proleptic_gregorian" ; // global attributes: :Site = "San Crisotbal, Galapagos Islands, Ecuador" ; string :Latitude = "0.8956 °S " ; string :Longitude = "89.6087 °W" ; :Inlet\ Height = "27 m above sea level" ; :Contact = "tcinay[at]mit[dot]edu or babbin[at]mit[dot]edu" ; :Instrument = "Picarro Inc. G5310 Cavity Ringdown Spectrometer" ; :Software = "GCWerks" ; }
GAL202405_N2O_CO.nc (NetCDF, 5.01 MB) MD5:c910eaa5f94c8fa375953c5739275d07 Primary data file for BCO-DMO dataset ID 917743, version 2. Dates: 2024-05-01 to 2024-05-31 netcdf GAL202405_N2O_CO { dimensions: time = 43634 ; variables: double n2o_mean(time) ; n2o_mean:_FillValue = NaN ; n2o_mean:long_name = "mean nitrous oxide mole fraction" ; n2o_mean:units = "ppb" ; n2o_mean:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_stdev(time) ; n2o_stdev:_FillValue = NaN ; n2o_stdev:long_name = "nitrous oxide mole fraction standard deviation" ; n2o_stdev:units = "ppb" ; n2o_stdev:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_number(time) ; n2o_number:_FillValue = NaN ; n2o_number:long_name = "number of n2o measurements averaged in each time stamp" ; n2o_number:units = "unitless" ; double co_mean(time) ; co_mean:_FillValue = NaN ; co_mean:long_name = "mean carbon monoxide mole fraction" ; co_mean:units = "ppb" ; co_mean:scale = "NOAA-WMO-CO_X2014A" ; double co_stdev(time) ; co_stdev:_FillValue = NaN ; co_stdev:long_name = "carbon monoxide mole fraction standard deviation" ; co_stdev:units = "ppb" ; co_stdev:scale = "NOAA-WMO-CO_X2014A" ; double co_number(time) ; co_number:_FillValue = NaN ; co_number:long_name = "number of co measurements averaged in each time stamp" ; co_number:units = "unitless" ; string time_string(time) ; time_string:long_name = "Time stamp corresponding to the samping time in string format" ; time_string:timezone = "UTC" ; int64 time(time) ; time:timezone = "UTC" ; time:long_name = "Time stamp corresponding to the samping time" ; time:units = "minutes since 2024-05-01 00:00:00" ; time:calendar = "proleptic_gregorian" ; // global attributes: :Site = "San Crisotbal, Galapagos Islands, Ecuador" ; string :Latitude = "0.8956 °S " ; string :Longitude = "89.6087 °W" ; :Inlet\ Height = "27 m above sea level" ; :Contact = "tcinay[at]mit[dot]edu or babbin[at]mit[dot]edu" ; :Instrument = "Picarro Inc. G5310 Cavity Ringdown Spectrometer" ; :Software = "GCWerks" ; }
GAL202406_N2O_CO.nc (NetCDF, 4.82 MB) MD5:d73fb2a091724b7796dfda0e4a1c7973 Primary data file for BCO-DMO dataset ID 917743, version 2. Dates: 2024-06-01 to 2024-06-30 netcdf GAL202406_N2O_CO { dimensions: time = 41737 ; variables: double n2o_mean(time) ; n2o_mean:_FillValue = NaN ; n2o_mean:long_name = "mean nitrous oxide mole fraction" ; n2o_mean:units = "ppb" ; n2o_mean:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_stdev(time) ; n2o_stdev:_FillValue = NaN ; n2o_stdev:long_name = "nitrous oxide mole fraction standard deviation" ; n2o_stdev:units = "ppb" ; n2o_stdev:scale = "NOAA-WMO-N2O_X2006A" ; double n2o_number(time) ; n2o_number:_FillValue = NaN ; n2o_number:long_name = "number of n2o measurements averaged in each time stamp" ; n2o_number:units = "unitless" ; double co_mean(time) ; co_mean:_FillValue = NaN ; co_mean:long_name = "mean carbon monoxide mole fraction" ; co_mean:units = "ppb" ; co_mean:scale = "NOAA-WMO-CO_X2014A" ; double co_stdev(time) ; co_stdev:_FillValue = NaN ; co_stdev:long_name = "carbon monoxide mole fraction standard deviation" ; co_stdev:units = "ppb" ; co_stdev:scale = "NOAA-WMO-CO_X2014A" ; double co_number(time) ; co_number:_FillValue = NaN ; co_number:long_name = "number of co measurements averaged in each time stamp" ; co_number:units = "unitless" ; string time_string(time) ; time_string:long_name = "Time stamp corresponding to the samping time in string format" ; time_string:timezone = "UTC" ; int64 time(time) ; time:timezone = "UTC" ; time:long_name = "Time stamp corresponding to the samping time" ; time:units = "minutes since 2024-06-01 00:00:00" ; time:calendar = "proleptic_gregorian" ; // global attributes: :Site = "San Crisotbal, Galapagos Islands, Ecuador" ; string :Latitude = "0.8956 °S " ; string :Longitude = "89.6087 °W" ; :Inlet\ Height = "27 m above sea level" ; :Contact = "tcinay[at]mit[dot]edu or babbin[at]mit[dot]edu" ; :Instrument = "Picarro Inc. G5310 Cavity Ringdown Spectrometer" ; :Software = "GCWerks" ; }

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-2138890

Deployments

None available yet

Instruments

Cavity enhanced absorption spectrometers

Supplied Name: Picarro Inc. G5310 Cavity Ring-down Spectrometer

Supplied Description:

Instrument Type

Generic Name: Cavity enhanced absorption spectrometers

Acronym: CEAS

Generic Description:

Instruments that illuminate a sample inside an optical cavity, typically using laser light, and measure the concentration or amount of a species in gas phase by absorption spectroscopy. Techniques include cavity ring-down spectroscopy (CRDS) and integrated cavity output spectroscopy (ICOS).

Parameters

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Database

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Dataset: Monthly N₂O data from San Cristobal