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NACP Greenhouse Gases Multi-Source Data Compilation, 2000-2009
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Revision date: February 10, 2014

Summary:

This data set is a collection of measurements of carbon dioxide (CO2) and non-CO2 greenhouse gases made across North America by nine independent atmospheric monitoring networks from 2000 - 2009. During this North American Carbon Program (NACP) sponsored activity, data were compiled from the following networks: AGAGE, COBRA, CSIRO, INTEX-A, INTEX B, Irvine Latitude Network, NOAA CMDL, SCRIPPS, and from Stanley Tyler-UC Irvine. The files presented here are the products of merging multiple original measurement results files for selected sites across North America from each monitoring network. See Figure 1. The monitoring networks are described in Table 3. The primary focus of this effort was the compilation of non-CO2 greenhouse gases over North America, but numerous CO2 observations are also included.

The data files for each network are accompanied by detailed readme documentation files prepared by the respective network investigators. Project descriptions, objectives, references, sampling and analysis methods, and data file descriptions are included in these READMEs. Table 1 displays the monitoring network sites, sample types, analytes, and links to the detailed network README files. Network- and laboratory-specific data citations are included in the README documentation and should be used to acknowledge the use of these data as appropriate.

Non-CO2 greenhouse gases (methane (CH4), carbon monoxide (CO), nitrous oxide (N2O)) are a major focus for the NACP (Wofsy and Harriss, 2002). Rising levels of CH4 and N2O together account for almost half of the radiative forcing due to CO2; CO is a tracer for CO2 emitted from mobile sources and biomass fires (e.g. Gerbig et al. 2003; Geels et al., 2004) and CO data help define factors influencing tropospheric ozone (O3), another key contributor to radiative forcing. This synthesis project brought together data for CH4, CO, and N2O generated in the broad range of relevant research programs ongoing in the NACP.

The data files for each monitoring network and each sampling type (continuous or flasks) have been combined into one compressed (*.zip) file along with the detailed README document. There are 17 compressed files that when expanded contain data files which represent one year’s data for that specific campaign and sampling method. The number of annual files that were compiled from a network into this collection varies. See Tables 1 and 2.


google-earth map of sites


Figure 1. The data included here are from these selected sites across North America from the identified monitoring networks. It is difficult to capture all of the sites in one image. Please use the source file for this image, NACP_GHG_Data_Compilation_Sites.kml, which is provided as a companion file. Also, the coordinates for each site are provided in the NACP_GHG_Data_Compilation_Sampling_Locations.csv companion file.

Data and Documentation Access:

Get Data: http//:daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1206

Supplemental Information:

Data Citation:

Cite this data set as follows:

Wofsy, S.C. and A. Dayalu. 2014. NACP Greenhouse Gases Multi-Source Data Compilation, 2000-2009. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1206

Additional citations:

Network- and laboratory-specific citations are included in the detailed README documentation files prepared by the respective network investigators. Please include these citations as appropriate.

 

Table of Contents:

1. Data Set Overview:

Project: North American Carbon Program (NACP)

The North American Carbon Program (NACP) (Denning et al., 2005; Wofsy and Harriss, 2002) is a multidisciplinary research program to obtain scientific understanding of North America's carbon sources and sinks and of changes in carbon stocks needed to meet societal concerns and to provide tools for decision makers. Successful execution of the NACP has required an unprecedented level of coordination among observational, experimental, and modeling efforts regarding terrestrial, oceanic, atmospheric, and human components. The project has relied upon a rich and diverse array of existing observational networks, monitoring sites, and experimental field studies in North America and its adjacent oceans. It is supported by a number of different federal agencies through a variety of intramural and extramural funding mechanisms and award instruments.

This data set is a collection of measurements of CO2 and non-CO2 greenhouse gases made across North America by nine independent atmospheric monitoring networks from 2000 - 2009. During this NACP sponsored activity, data were compiled from the following networks: AGAGE, COBRA, CSIRO, INTEX-A, INTEX B, Irvine Latitude Network, NOAA CMDL, SCRIPPS, and from Stanley Tyler-UC Irvine. The files presented here are the products of merging multiple original measurement results files for selected sites across North America from each monitoring network.

Table 1. List of monitoring networks, sampling sites, sample types, analytes with years collected, and links to the detailed network README files.

Network Sites Sample Type CO2 CO CH4 N2O Halocarbons Other Hydrocarbons Other Readme
AGAGE Trinidad Head, CA Ragged Point, Barbados Ground- based continuous     2000-2009 2000-2009 2000-2009  SF6
SO2F2
TCE
README_agage.txt
CSIRO Alert, Canada Mauna Loa, HI Estevan Point, Canada Ground-based flasks 2000-2001 2000-2001 2000-2001       H2 dC13 in CO2 README_CSIRO_flasks.txt
Tyler- UCI Flask Data Montana del Oro State Park, CA Niwot Ridge, CO Ground-based flasks               README_TYLER_UCI_flasks.txt
Irvine Latitude Network Network has an approximate latitudinal range of -47 to 71 degrees. Data included are North American sites, Alaska through Baja California, and Hawaii. *** Ground-based flasks     2000-2001   2000-2001 2000-2001   README_irvinelatnet_flasks.txt
NOAA Pt. Barrow, AK, Niwot Ridge, CO Mauna Loa, HI Ground-based flasks 2000-2008 2000-2008 2000-2008 2000-2008 2000-2008   H2 dC13 in CO2
dC14 in CO2
dO18 in CO2
README_noaa_flasks.txt
NOAA Pt. Barrow, AK, Niwot Ridge, CO Mauna Loa, HI Ground-based continuous 2000-2008   2000-2008 2000-2008 2000-2008 2000-2008 SF6 README_noaa_continuous.txt
SCRIPPS Barrow, AK Mauna Loa, HI
Cape Kumukahi, HI
La Jolla Pier, CA
Alert, NWT, Canada
Ground-based flasks 2000-2001             README_scripps.txt
WMO-EnvCanada Alert Canada
Estevan Point
Sable Island
Ground-based flasks 2000-2008 2000-2008 2000-2008         README_wmo_canada_flask.txt
WMO-EnvCanada Alert Canada
Candle Lake
East Trout Lake
Egbert Canada
Fraserdale
Sable Island
Chibougamou
Lake Labiche
Ground-based continuous 2000-2008 2000-2008 2000-2008         README_wmo_canada_continuous.txt
COBRA Continental US and southern Canada Aircraft- based flask 2003-2004 2003-2004 2003-2004 d13C CO2
d18O in
N2O
H2
H2O
O2:N2
SF6
README_cobra_2003_flask.txt
COBRA Continental US and southern Canada Aircraft- based continuous 2003-2004 2003-2004        H2O README_cobra_2003.txt and README_cobra_2004.txt
INTEX-A and B INTEX-A (2004) central and eastern United States;
INTEX-B (2006) west coast US, Mexico City, and out in the Pacific region toward Asia.
Aircraft- based flask and continuous 2004-2006 2004-2006 2004-2006   2004-2006 2004-2006 COS
H2O
H2O2
NO
O3
Ca, Cl, K, Mg, Na,NO3, NH4, SO4
Aerosol density and surface area
README_intex-a_dc8_2004_continuous.txt, README_intex-a_dc8_2004_flask.txt, README_intex-b_2006_c130_continuous.txt, README_intex-b_2006_c130_flask.txt, README_intex-b_2006_dc8_continuous.txt, and README_intex-b_2006_dc8_flask.txt

*** Irvine Latitude Network Sites




Kauai, HI Punta Baja, CA Barrow Weather Station (NOAA), AK
Bodega Bay, CA WashingtonCreek,Fairbanks, AK
Portage Glacier, Anchorage, AK Fort Abercrombie State Park, Kodiak, AK Pololu Valley, HI
Yaquina Head Lighthouse Newport, OR
Julia Pfieffer State Beach, CA
San Simeon, CA
Todos Santos, CA (23.44,-110.24)
Upolu Airport, Big Isle, HI
Piedras Blancas, CA
Point Reyes Lighthouse, CA
Hawaii Cabo San Lucas, MX
Cape Blanco Lighthouse, OR
La Pinta Hotel Beach, south of San Quentin, CA
Ocean Shores, WA
Jalama Beach State Park,CA
Ocean City Beach, WA MacKerricher State Park, Fort Bragg, CA
Trinidad State Beach, CA Illwaco Beach, WA
Point Arena, CA
Cape Mendocino, CA Lihue, HI
Ragged Point, CA
Klamath, CA

2. Data Characteristics:

The data files for a monitoring network and sampling type (continuous or flasks) are combined in one compressed (*.zip) file along with the detailed README document. There are 17 compressed files that when expanded contain data files which represent one year’s data for that specific campaign and sampling method. The number of annual files that were compiled from a network into this collection varies.

Table 2. Compressed file names and included network data files.

 

Network Compressed File Names Data File Names README
AGAGE agage_continuous.zip agage_2000_continuous.csv
agage_2001_continuous.csv
agage_2002_continuous.csv
agage_2003_continuous.csv
agage_2004_continuous.csv
agage_2005_continuous.csv
agage_2006_continuous.csv
agage_2007_continuous.csv
agage_2008_continuous.csv
agage_2009_continuous.csv
README_agage.txt
CSIRO csiro_flasks.zip csiro_2000_flask.csv
csiro_2001_flask.csv
README_CSIRO_flasks.txt
Tyler-UCI Flask Data tyler_flasks.zip tyler_flask_2000.csv
tyler_flask_2001.csv
README_TYLER_UCI_flasks.txt
Irvine Latitude Network irvinelatnet_flasks.zip irvinelatnet_2000_flasks.csv
irvinelatnet_2001_flasks.csv
irvinelatnet_2002_flasks.csv
irvinelatnet_2003_flasks.csv
irvinelatnet_2004_flasks.csv
irvinelatnet_2005_flasks.csv
irvinelatnet_2006_flasks.csv

irvinelatnet_2007_flasks.csv
irvinelatnet_2008_flasks.csv
README_irvinelatnet_flasks.txt
NOAA noaa_flasks.zip

noaa_continuous.zip
noaa_2000_flasks.csv
noaa_2001_flasks.csv
noaa_2002_flasks.csv
noaa_2003_flasks.csv
noaa_2004_flasks.csv
noaa_2005_flasks.csv
noaa_2006_flasks.csv
noaa_2007_flasks.csv
noaa_2008_flasks.csv

noaa_2000_continuous.csv
noaa_2001_continuous.csv
noaa_2002_continuous.csv
noaa_2003_continuous.csv
noaa_2004_continuous.csv
noaa_2005_continuous.csv
noaa_2006_continuous.csv
noaa_2007_continuous.csv
noaa_2008_continuous.csv
README_noaa_flasks.txt and README_noaa_continuous.txt
SCRIPPS scripps_flasks.zip scripps_2000_flasks.csv
scripps_2001_flasks.csv
README_scripps.txt
WMO-EnvCanada wmo_canada_flasks.zip

wmo_canada_continuous.zip
wmo_canada_2000_flasks.csv
wmo_canada_2001_flasks.csv
wmo_canada_2002_flasks.csv
wmo_canada_2003_flasks.csv
wmo_canada_2004_flasks.csv
wmo_canada_2005_flasks.csv
wmo_canada_2006_flasks.csv
wmo_canada_2007_flasks.csv
wmo_canada_2008_flasks.csv

wmo_canada_2000_continuous.csv
wmo_canada_2001_continuous.csv
wmo_canada_2002_continuous.csv
wmo_canada_2003_continuous.csv
wmo_canada_2004_continuous.csv
wmo_canada_2005_continuous.csv
wmo_canada_2006_continuous.csv
wmo_canada_2007_continuous.csv
wmo_canada_2008_continuous.csv
README_wmo_canada_flask.txt

README_wmo_canada_continuous.txt
COBRA cobra_flasks.zip

cobra_continuous.zip
cobra_2003_flasks.csv

cobra_2003_continuous.csv
cobra_2004_continuous.csv
README_cobra_2003_flask.txt

README_cobra_2003.txt
README_cobra_2004.txt
INTEX-A and B intex-a_dc8_2004_flasks.zip
intex-a_dc8_2004_continuous.zip

intex-b_2006_c130_flasks.zip
intex-b_2006_c130_continuous.zp

intex-b_2006_dc8_flasks.zip
intex-b_2006_dc8_continuous.zip
intex_a_dc8_2004_flasks.csv

intex_a_dc8_2004_continuous.csv

intex_b_c130_2006_flasks.csv
intex_b_c130_2004_continuous.csv

intex_b_dc8_2006_flasks.csv
intex_b_dc8_2006_continuous.csv
README_intex-a_dc8_2004_flask.txt
README_intex-a_dc8_2004_continuous.txt

README_intex-b_2006_c130_flask.txt
README_intex-b_2006_c130_continuous.txt

README_intex-b_2006_dc8_flask.txt
README_intex-b_2006_dc8_continuous.txt

Data File Organization:

Each data file represents one year’s data for the specific campaign with flask and continuous data from airborne campaigns in separate files.

Example Data File:

EXPLANATORY 10 LINE FOR STANLEY TYLER/UCI 2001 FLASK DATA

Fair Use Agreement: By using these data you agree to abide by our Fair Use Policy. Refer to the accompanying readme file for more information including how to cite these data. The user of this data is responsible for obtaining the latest data sets. For original data sets and information on updates and citations visit http://cdiac.ornl.gov/epubs/db/db1022/db1022.html

Today's date: August 24 2009. Data downloaded from website: August 4 2009

For more information about this data contact Stanley Tyler, styler@uci.edu.

"YYYYMMDD","doy","UTC","station","latitude","longitude","altitude","wind.m","wind.d",
"CH3D_UCI","SD.CH3D_UCI","CH4_UCI","SD.CH4_UCI","CH4C13_UCI",
"SD.CH4C13_UCI","CO_UCI","SD.CO_UCI","COC13_UCI","SD.COC13_UCI" 20010112,12,68400,"NWR",40.05,-105.58,3523,2.7,240,-91.3,2.1,1782.1,NaN,NaN,NaN,NaN,NaN,NaN,NaN 20010112,12,68400,"NWR",40.05,
-105.58,3523,2.7,240,NaN,NaN,NaN,NaN,NaN,NaN,111.9,1.1,NaN,NaN 20010117,17,40860,"MDO",35,
-121,NaN,8.5,280,NaN,NaN,NaN,NaN,NaN,NaN,169.3,0,-26.72,0.27 20010117,17,84060,"MDO",35,-121,NaN,8.4,280,-103.9,2.1,1863,6,NaN,NaN,NaN,NaN,NaN,NaN 20010126,26,65700,"NWR",40.05,
-105.58,3523,2.2,270,-93.8,0,1816.3,NaN,NaN,NaN,NaN,NaN,NaN,NaN 20010126,26,65700,"NWR",40.05,
-105.58,3523,2.2,270,NaN,NaN,NaN,NaN,NaN,NaN,129.9,1,NaN,NaN 20010205,36,46560,"MDO",35,
-121,NaN,2.2,300,NaN,NaN,NaN,NaN,NaN,NaN,180.1,0,-27.12,1.05 20010205,36,89760,"MDO",35,-121,NaN,2.2,300,
-98.8,1.6,1826,5,NaN,NaN,NaN,NaN,NaN,NaN

 

Site Boundaries: (All latitude and longitude given in decimal degrees)

Site (Region) Westernmost Longitude Easternmost Longitude Northernmost Latitude Southernmost Latitude
Overall North American area for data compilation -165.4 -59.4167 82.47 13.1667

Site locations: See companion file with individual network sampling site locations:

NACP_GHG_Data_Compilation_Sampling_Locations.csv

Location Note: : In the Irvine Latitude Network, the Death Valley, CA site location is incorrect (in Arizona). These samples were grab samples and not from an established station. The coordinates provided are as reported in the README and no other information is available. Approximate Death Valley, CA coordinates from another source: 36.246944, -116.816944.

Time period: The data set covers the period 2000/01/01 to 2009/12/31

3. Data Application and Derivation:

This data collection can be used in conjunction with modeling efforts to produce better quantitative knowledge of greenhouse gas sources in North America. See Miller et al. 2013 for a related application.

4. Quality Assessment:

Data flags are included in most of the data files with codes that will denote specific concerns for each measurement type. The specific codes are included in the associated README files. In addition, the methods section of the associated readme files includes details on method precision and quality control protocols for each campaign.

5. Data Acquisition Materials and Methods:

This data set is a collection of measurements of carbon dioxide (CO2) and several non-CO2 greenhouse gases made across North America by nine independent atmospheric monitoring networks from 2000 - 2009. Data were collected by the following networks: AGAGE, COBRA, CSIRO, INTEX-A, INTEX B, Irvine Latitude Network, NOAA CMDL, SCRIPPS, and from Stanley Tyler-UC Irvine. The files presented here are the products of merging multiple original measurement results files for selected sites across North America from each monitoring network. The primary focus of this effort was the compilation of non-CO2 greenhouse gases over North America, but numerous CO2 observations are also included. Figure 2 shows the Google Map representation of the sampling locations.

 sites


Figure 2. Google Map representation of the ground-based network sampling locations showing the complete geographic range. (source: http://www.nacarbon.org/cgi-bin/google_maps/nonco2_googlemap.pl)

The data files for each network are accompanied by detailed README documentation files prepared by the respective network investigators. Network descriptions, objectives, references, sampling and analysis methods, and data file descriptions are included in these READMEs. This network sampling and analysis information have been summarized in the tables in Tables 3 and 4 below.

Table 3. Includes the common network identifier, the full name, general description, and original source links to data and documentation.

Network Name Description Source Links
AGAGE Advanced Global Atmospheric Gases Experiment (AGAGE) AGAGE and its predecessors have been measuring the composition of the global atmosphere continuously since 1978. The AGAGE is distinguished by its capability to measure over the globe at high frequency almost all of the important gas species in the Montreal Protocol ( e.g. CFCs and HCFCs) to protect the ozone layer and almost all of the significant non-CO2 gases in the Kyoto Protocol (e.g. HFCs, CH4 and N2O to mitigate climate change Data link
ftp://nacp.ornl.gov/pub/non-CO2_GHG/data/
Documentation link
ftp://nacp.ornl.gov/pub/non-CO2_GHG/data/
Source links
http://agage.eas.gatech.edu/data_archive/agage/gc-ms-medusa/complete/

http://agage.eas.gatech.edu/data_archive/agage/gc-md/complete/
CSIRO CSIRO Global Atmospheric Sampling Laboratory (GASLAB) Flask Sampling Network. The CSIRO flask study presents data from 1984 to 2001, based at 9 stationary surface sites and one moving platform. The study traces four crucial gases: CH4, CO2, CO and H2 with a number of daily flask samples each week. The stations span the globe. The data in this dataset focus on the three North American sites in the study and the 2000-2001 time period. Data link
http://cdiac.ornl.gov/epubs/db/db1021/db1021.html
Documentation link

Source link
http://www.marine.csiro.au/marq/edd_search.Browse_Citation?txtSession=8381
Irvine Latitude Network Irvine Latitude Network
Donald Blake, Department of Chemistry, University of California Irvine
The network investigates the presence of CH4 , other hydrocarbons, alkyl nitrates and chlorinated carbon compounds throughout the world. The network has an approximate latitudinal range of -47 to 71 degrees. The network takes roughly 80 samples per season over three- week periods in March, June, September and December. Data included here are from the North American sites ( Alaska through Baja California as well as Hawaii) Data link
http://cdiac.ornl.gov/trends/otheratg/blake/blake.html
Documentation link

Source link
http://cdiac.ornl.gov/trends/otheratg/blake/blake.html
Tyler-UCI Contact: Stanley C. Tyler, Department of Earth System Science, University of California Irvine This study measures CH4 and CO concentrations at two North American sites. Carbon and hydrogen isotopes are also measured. Data here cover the 2000-2001 time period. Data link
http://cdiac.ornl.gov/epubs/db/db1022/db1022.html
Documentation link
Source link
http://cdiac.ornl.gov/epubs/db/db1022/db1022.html
NOAA Multiple programs The general mission of the Halocarbons and other Atmospheric Trace Species (HATS) group is to quantify the distributions and magnitudes of sources and sinks for atmospheric nitrous oxide (N2O) and halogen containing compounds. These data represent in-situ measurements from three of NOAA’s ground-based stations in North America. NOAA flask data provide measurements eight species (CH4, N2O, CO, CO2,(C13, C14, O18), H2), drawing samples from ground –based sites as well as aircraft. Data link
Documentation link
Source link
http://www.esrl.noaa.gov/gmd/dv/data/

HATS data http://www.esrl.noaa.gov/gmd/hats/insitu/cats/cats_conc.html

CH4 continuous data
http://www.mmnt.net/db/0/0/ftp.cmdl.noaa.gov/ccg/ch4/in-situ

CO2 continuous data
http://www.mmnt.net/db/0/0/ftp.cmdl.noaa.gov/ccg/co2/in-situ
SCRIPPS Scripps CO2 Program This study presents atmospheric CO2 concentrations spanning latitudes 82 degrees N to 90 degrees S although only North American data is included here. Data link
Documentation link
Source link
http://scrippsco2.ucsd.edu/data/atmospheric_co2.html

http://cdiac.ornl.gov/trends/co2/sio-keel.html
WMO- Environment Canada World Meteorology Organization - Environment Canada These data sets report CH4 and CO2 mixing ratios collected at seven station in Canada between 2000 and 2008 Data link
Documentation link
Source link
http://www.ec.gc.ca/donneesnatchem-natchemdata/default.asp?lang=En&n=732D8935-1

http://ds.data.jma.go.jp/gmd/wdcgg/cgi-bin/wdcgg/accessdata.cgi?lang=&contributor_index=200612120011
COBRA CO2 Budget and Regional Airborne-North America (COBRA-NA) The objective of COBRA is to test concepts for observations and data assimilation to determine the large scale sources and sinks of greenhouse gases and ozone destroying gases from North America. The study covers spatial scales from regional to continental. Gases of interest include; CO2, CO, CH4, N2O, CFCs, chlorinated solvents (CH3CCl3, CCl4), SF6, ozone, and H2. Data link
Documentation link
Source link
http://www.esrl.noaa.gov/gmd/hats/airborne/acats/projects/cobra-na/
INTEX-A Intercontinental Chemical Transport Experiment, Phase A INTEX-NA is an integrated atmospheric field experiment consisting of two phases. Phase A (INTEX-A) occurred in the summer of 2004 over the central and eastern United States. The INTEX-NA mission seeks to answer questions about the transport and transformation of gases and aerosols on the transcontinental/intercontinental scales and their impact on air quality and climate. Data link
Documentation link
Source link
http://www-air.larc.nasa.gov/missions/intexna/dataaccess.htm http://www.espo.nasa.gov/intex-na/
INTEX-B Intercontinental Chemical Transport Experiment, Phase B INTEX-NA is an integrated atmospheric field experiment consisting of two phases. Phase B (INTEX-B) occurred in the summer of 2006 over the west coast of the United States and out into the Pacific region towards Asia. The INTEX-NA mission seeks to answer questions about the transport and transformation of gases and aerosols on the transcontinental/ intercontinental scales and their impact on air quality and climate. Data link
Documentation link
Source link
http://www.espo.nasa.gov/intex-b/
http://www-air.larc.nasa.gov/missions/intex-b/dataaccess.htm

Table 4. Summary of measurements and methods for each network compiled from individual READMEs.

Network Chemical Species Measured Instrument / Method Comments
AGAGE CFC-11, CFC-12, CH3CCl3, CCl4, N2O, CFC-113, CH4, CHCl3, CO, and H2. AGAGE GC-ECD/FID/MRD system continuous
HFC-134a, HCFC-22, HCFC-141b, HCFC-142b, CH3Cl, CH3Br, Halon-1211, Halon-1301, HFC-152a, CH2Cl2, CHClCCl3, and CCl2CCl2 AGAGE GC-MS (ADS) system continuous
CFC-113, HCFC-22, HCFC-141b, HCFC-142b, HFC-125, HFC-134a, HFC-152a, HFC-365mfc, HFC-23, Halon-1211, Halon-1301, CH3Cl, CH2Cl2, CHCl3, CH3Br, CH3CCl3, CHClCCl2, CCl2CCl2, SF6, SO2F2, PFC-14, PFC-116, PFC-218 CO, H2 Medusa GC-MS instruments (installed at Trinidad Head in 2005) continuous
CSIRO CO, H2 GC with mercuric oxide, reduction. CO reduces HgO to Hg vapor which is detected by UV absorption. RGA3-1 (R1) Trace Analytical GC was used over the length of the record. flasks
CH4,CO2 GC/FID. Three Carle GC's were used: Carle-1, Carle-2, and Carle-3 (C1, C2, C3) flasks
13C C02 Dual inlet stable isotope ratio mass spectrometry (M1, Finnigan MAT252), after CO2 was captured with automated cryogenic trapping system flasks
Irvine Latitude Network CCl4, C2Cl4, cfc11, cfc113, cfc12, CHCl3, CH3CCl3, CH3ONO2, EtONO2, H1211, i.PrONO2 GC/ECD flasks
n.butane, i.butane, CH4, ethane, ethyne, propane GC/FID flasks
Tyler-UCI CO Shimadzu Model 14A GC with a Model RGD2 reduction gas analyzer detector (HgO) flasks
CH4 Hewlett Packard 5880A GC /FID flasks
d13C CH4, dC13 CO2 Finnigan MAT Model 252 IRMS flasks
dD-CH4 cf-GC/IRMS coupled to a custom-designed CH4 gas preconcentrator. A pyrolysis oven converts CH4 to H2 after its separation from the air stream and before its detection by the mass spectrometer flasks
NOAA CH4 GC/FID flasks, continuous
CO H2 GC/HgO flasks
CO2 NDIR flasks
dC13 CO2, dO18 CO2 dC13 CO2, dO18 CO2 flasks
dC14 CO2Accelerator MS flasks
N2O GC/ECD flasks
CO2 NDIR continuous
CCl4, cfc11, cfc113, cfc12, CH3CCl3, CH3Cl, hcfc22, hcfc142b, H1211, N2O, SF6 GC for Atmospheric Trace Species (CATS). These GCs replaced the Radiatively Important Trace Species (RITS) GCs, which were in operation from 1986 to 2000 continuous
SCRIPPS CO2 NDIR flasks
WMO- Environment Canada CH4, CO GC/FID flasks, continuous
CO2 NDIR flasks, continuous
COBRA N2O, SF6, CFC-12 (CCl2F2), and halon-1211 (CBrClF2) H2), CO, CH4, CFC-11 (CCl3F), CFC-113 (CClF2-CCl2F), CHCl3, CH3CCl3, CCl4 ATS airborne GC, Airborne Chromatograph for Atmospheric Trace Species (ACATS-IV) flasks
CO2 LiCor CO2 analyzer  
O2/N2, Ar/N2, and CO2/N2 MS flasks
13CO2/12CO2 and C18O16O/C16O16O Micromass Otima MS at INSTAAR flasks
CO2, CO, CH4, N2O, H2, and SF6 GMD flasks
INTEX-A DC-8 O3 NO/O3, Chemiluminescence flasks, continuous
CH2O,OH,HO2,NO,RO2 Laser Induced Fluorescence flasks, continuous
CO, CH4, N2O, CH2O Tunable Diode Laser Absorption Spectrometry flasks, continuous
VOC’s, CO_UCI, CH4_UCI, DMS_UCI GC-FID/EC/MSGC-FID/EC/MS flasks, continuous
NO2, NOy, "alkyl" nitrates Laser Induced Fluorescence and thermal dissociation flasks, continuous
CO2 NDIR; LI-COR 6252 Spectrometer flasks, continuous
PANs Automated dual GC with cryofocusing flasks, continuous
methanol, ethanol, acetonitrile, HCN Reduction Gas Detector flasks, continuous
acetaldehyde, acetone, MEK, benzene Photo Ionization Detector flasks, continuous
H2O vapor Open path Diode Laser Hygrometer (mixing ratio) Absorption Spectrometry flasks, continuous
HNO3, fine aerosol sulfate, bulk aerosol composition Mist chamber/GC-IC isokinetic sampling through forward-facing aerosol inlet onto Teflon filter, ion chromatography flasks, continuous
SO2, HO2NO2, HNO3, H202, HCN, PAA Chemical Ionization MS flasks, continuous
Bulk aerosol ionic composition Particle into Liquid Sampling (PILS) coupled to ICs flasks, continuous
CH2O, PAA Fluorometry (aqueous collection followed by enzyme fluorescence detection) flasks, continuous
CH3OOH, H2O2 HPLC-fluorometry flasks, continuous
INTEX-B DC-8 Aerosol number, concentration, area density, volume density Wing Mounted Aerosol Probes flasks, continuous
O3 NO/O3, Chemiluminescence flasks, continuous
H2O mixing ratio, J(NO2) Cryo-chill mirror, cryogenic hygrometer, filter radiometer,ICATS Navigation System flasks, continuous
CO, CH4, OCS, DMS, CS2, CFCs, VOCs Grab samples analyzed with GC and GC-MS flasks, continuous
Aerosol Scattering Ratio, Aerosol Depolarization %, Wavelength Dependence, Troposphere and tropopause O3 profiles UV Lidar (Airborne Differential Absorption Lidar- DIAL), Aerosol flasks, continuous
OH, HO2 Laser Induced Fluorescence (LIF) flasks, continuous
Aerosol absorption coefficients, size, concentration, scattering coefficients 3-wl Radiance Research Particle Soot Absorption Photometer (PSAP), Aerodynamic Particle Sizer (APS TSI 3221), TSI Condensation Particle Counter (CPC), Differential Mobility Analyzer (DMA and Long DMA), Optical Particle Counter (OPC) calibrated with PSL spheres, nephelometers (TSI 3563 and 3 Radiance Research-RR) flasks, continuous
NO2, HNO3, PANs, "alkyl" nitrates Thermal Dissociation-Laser Induced Fluorescence flasks, continuous
Bulk aerosol ionic composition, HNO3, fine aerosol sulfate Isokinetic sampling through forward-facing aerosol inlet onto teflon filter, mist chamber flasks, continuous
H2O vapor mixing ratio Open path Diode Laser Hygrometer flasks, continuous
CH2O (formaldehyde) Tunable Diode Laser flasks, continuous
H2O2, CH3OOH, CH2O Fluorometry (aqueous collection followed by enzyme fluorescence detection and high-performance liquid chromatography-HPLC) flasks, continuous
HCl Chemical Ionization Mass Spectrometry (CIMS) flasks, continuous
NO NO Chemiluminescence flasks, continuous
O3 number density and mixing ratio, aerosol number Excimer and Yag lasers flasks, continuous
H2O2 Aqueous collection followed by Chemiluminescence with acidinium ester flasks, continuous
CO, CH4, N2O Diode laser spectrometer flasks, continuous
J(O3), J(NO2), J(N2O5), J(H2O2), J(HNO2), J(HNO3), J(CH20), J(CH3CHO), J(C2H5CHO), J(CHOCHO), J(CH3COCHO), J(CH3COCH3), J(CH3OOH), J(CH3ONO2), J(PAN), J(CH3CH2CH2CHO), J(CH3COCH2CH3), J(HO2NO2), J(CH3CH2ONO2) Scanning actinic flux spectroradiometer with photo multiplier tube (PMT) detector flasks, continuous
PAN, acetaldehyde, propanal, acetone, methyl ethyl ketone, (MEK), methanol, ethanol, acetonitrile, HCN Automated dual gas chromatography with cryofocusing (PAN), Reduction Gas Detector (methanol,ethanol, nitriles) flasks, continuous
Total Gaseous Mercury (TGM Cold Vapor Atomic Fluorescence Spectrometry flasks, continuous
NO, LOD Laser-Induced Fluorescence (LIF) flasks, continuous
CO2 LI-COR 6252 Spectrometer flasks, continuous
INTEX-B C-130 Trace organic gases Trace Organic Gas Analyzer (TOGA) flasks, continuous
VOCs, CFCs Grab samples analyzed with GC and GC/MS flasks, continuous
Aerosols: optical properties Transmission electron microscopy flasks, continuous
CO Vacuum ultraviolet (VUV) fluorescence flasks, continuous
HO2, RO2, OH, H2SO4, methanesulfonate (MSA) Chemical Ionization Mass Spectrometry (CIMS) instrument as component of Eisele/Mouldin 4-channel instrument flasks, continuous
Aerosol absorption coefficients, size, concentration, scattering coefficients 3-wl Radiance Research Particle Soot Absorption Photometer (PSAP), Aerodynamic Particle Sizer (APS, TSI 3321), TSI Condensation Particle Counter (CPC), Differential Mobility Analyzer (DMA and Tandem DMA), optical particle counter (OPC) calibrated with PSL spheres, nephelometer (TSI 3563) flasks, continuous
PANs, PiBN PAN CIGARette Thermal Decomposition Chemical Ionization Spectrometer flasks, continuous
SO2 PAN CIGARette Thermal Decomposition Chemical Ionization Spectrometer flasks, continuous
Aerosol chemical composition Aerodyne HR-ToF Aerosol Mass Spectrometer (AMS) flasks, continuous
Acetic acid, acetone, hydrocarbons, carbonyls, methyl ethyl ketone (MEK) Proton Transfer Reaction Mass Spectrometry (PTR-MS) flasks, continuous
Aerosol number and mass Single Particle Soot Photometer (SP-2) to distinguish non-incandescing and incandescing particles flasks, continuous
Latitude, longitude, roll, pitch, heading, ground speed, altitude, GPS measurements, rel. humidity, H2O vapor pressure, dew/frost point temperature, shortwave/UV irradiance, potential temperature Honeywell YG1854 Inertial Reference System (IRS), Global Positioning System (GPS), flasks, continuous
Cloud Condensation Nuclei Droplet Measurement Technologies streamwise thermal gradient CCN instrument flasks, continuous
Organic functional group composition of particles, elemental concentrations of particles Fourier Transform Infrared (FITR), x-ray fluorescence, scanning x-ray transmission microscope flasks, continuous
Photolytic frequencies, J(O3), J(NO2), J(N2O5), J(H2O2), J(HNO2), J(HNO3), J(CH2O), J(CH3CHO), J(C2H5CHO), J(CHOCHO), J(CH3COCHO), J(CH3COCH3), J(CH3OOH), J(CH3ONO2), J(PAN), J(CH3CH2CH2CHO), J(HO2NO2), J(CH3CH2ONO2) Scanning actinic flux spectroradiometer with photo multiplier tube (PMT) detector flasks, continuous
Bulk aerosol ionic composition Particle into Liquid Sampling (PILS) coupled to ion chromatographs, PILS coupled with Sievers Total Organic Carbon instrument flasks, continuous
Formaldehyde Difference frequency generation( DFG) tunable diode laser flasks, continuous
NO, NO2, NOy, O3 NOxy and O3 flasks, continuous
Acetic acid, formic acid, H2O2, HCN, HNO3, mixed-base hydrogen peroxide (MHP), polyacrylic acid (PAA), propanoic acid, SO2 Chemical Ionization Mass Spectrometry (CIMS)-direct measurements in ambient air flasks, continuous

Abbreviations:

GC = Gas Chromatograph; MS = Mass Spectrometer; FID = Flame Ionization Detector; ECD = Electron Capture Detector; NDIR = Non dispersive infrared analyzer; IRMS = Isotope-Ratio Mass Spectrometer

 

6. Data Access:

This data set is available through the Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC).

Data Archive Center:

Contact for Data Center Access Information:
E-mail: uso@daac.ornl.gov
Telephone: +1 (865) 241-3952

7. References:

Denning, A.S., et al. 2005. Science implementation strategy for the North American Carbon Program: A Report of the NACP Implementation Strategy Group of the U.S. Carbon Cycle Interagency Working Group. U.S. Carbon Cycle Science Program, Washington, DC. 68 pp.

Gerbig, C., Lin, J.C., Wofsy, S.C., Daube, B.C., Andrews, A.E., Stephens, B.B., Bakwin, P.S. and Grainger, C.A. (2003). Toward constraining regional-scale fluxes of CO2 with atmospheric observations over a continent: 2. Analysis of COBRA data using a receptor-oriented framework. Journal of Geophysical Research 108: doi: 10.1029/2003JD003770. issn: 0148-0227.

Geels, C., Doney, S. C., Dargaville, R., Brandt, J., and Christensen, J. H.: Investigating the sources of synoptic variability in atmospheric CO2 measurements over the Northern Hemisphere continents: a regional model study, Tellus B, 56, 35–50, 2004.

Miller, Scot M. and Wofsy, Steven C., Michalak, Anna M., Kort, Eric A., Andrews, Arlyn E., Biraud, Sebastien C., Dlugokencky, Edward J., Eluszkiewicz, Janusz, Fischer, Marc L., Janssens-Maenhout, Greet, Miller, Ben R., Miller, John B., Montzka, Stephen A., Nehrkorn, Thomas, Sweeney, Colm. 2013. Anthropogenic emissions of methane in the United States. PNAS 110(50) 20018-20022. 10.1073/pnas.1314392110

Wofsy, S.C. and R.C. Harriss (Eds.). 2002. The North American Carbon Program (NACP). Report of the NACP Committee of the U.S. Interagency Carbon Cycle Science Program. Washington, D.C.: U.S. Global Change Research Program.