Map of Sampling Locations

GLOBALVIEW uses discrete and quasi-continuous measurements from fixed surface and tower sites and moving ship and aircraft sites. Disc rete samples are collected in situ at weekly to monthly intervals and returned to the collaborating measurement laboratory for analysis . Quasi-continuous samples are measured in situ using systems located at the sampling location.

Data used for GLOBALVIEW have been edited by the collaborating PIs and selected for baseline conditions. "Baseline" conditions exclude samples influenced by local sources and sinks.

Quasi-continuous data used to derive GLOBALVIEW have been preprocessed to produce a single value per day. Often this averaging process is performed by the collaborating laboratories using well-established methods that have been published in the literature. In some instances, the averaging is done at ESRL and in cooperation with the contributing laboratories. Table 1 summarizes the different averaging strategies. Users are encouraged to review the literature and contact the measurement labs directly for details about and access to the actual observations.

Table 1. Summary of strategies used to compute daily values from quasi-continuous data.
LAB [lab #] SITE1,2 COMPUTATION OF DAILY VALUES3
ESRL [01] Observatories
<site>_01C0
All valid data.
EC [06] Surface
alt_06C0, sbl_06C0
All valid data.
EC [06] Surface
egb_06C0
All valid data between 15-17 LST.
EC [06] Tower
<site><ht>_06C3
All valid data between 15-17 LST.
JMA [19] Surface
<site>_19C0
Averages computed by JMA.
NIES [20] Surface
<site>_20C0
Averages computed by NIES.
AEMET [27] Mountain Top
izo_27C0
All valid nighttime data as determined by AEMET. Averages computed by AEMET.
CAMS [33] Mountain Top
wlg_33C0
Averages computed by CAMS.
SAWS [36] Surface
cpt_36C0
Averages computed by SAWS.
AGAGE [43] Surface
<site>_43C0
All valid data as determined by AGAGE.
1<site> is a placeholder for site code.
2<ht> is a placeholder for tower intake height (magl).
3Daily values computed by ESRL unless otherwise specified.

The following list provides general information on sampling locations for measurement records used to derive GLOBALVIEW-CH4. A summary of this list is available as a text file (gv_table.ch4).

The descriptive information includes

  • Identification code and location. Note that in some instances the identification code includes additional information (see File Names).
  • Organization collecting the air sample or making the measurements.
  • Sampling strategy and platform.
  • Contributing laboratory and average sample frequency of available data. The average is based on the most recent 3 years of available data.
  • Position of the sampling site where latitude is in degrees (000 is at the equator, north of the equator is positive (+), and south of the equator negative (-)), longitude is in degrees (east of Meridian of Greenwich is positive (+), and west of Meridian of Greenwich is negative (-)), and altitude is in meters above sea level (masl).
  • Time period of available measurements.


AIA005_02D2, Bass Strait/Cape Grim, Tasmania, Australia
Commonwealth Scientific and Industrial Research Organization
Discrete, Aircraft
CSIRO, Sample every 6 days
-40.53 144.30 [0-1000]1
1991 06 - 2000 09
AIA015_02D2, Bass Strait/Cape Grim, Tasmania, Australia
Commonwealth Scientific and Industrial Research Organization
Discrete, Aircraft
CSIRO, Sample every 10 days
-40.53 144.30 [1000-2000]1
1991 06 - 2000 09
AIA025_02D2, Bass Strait/Cape Grim, Tasmania, Australia
Commonwealth Scientific and Industrial Research Organization
Discrete, Aircraft
CSIRO, Sample every 17 days
-40.53 144.30 [2000-3000]1
1991 07 - 2000 09
AIA035_02D2, Bass Strait/Cape Grim, Tasmania, Australia
Commonwealth Scientific and Industrial Research Organization
Discrete, Aircraft
CSIRO, Sample every 19 days
-40.53 144.30 [3000-4000]1
1991 09 - 2000 09
AIA045_02D2, Bass Strait/Cape Grim, Tasmania, Australia
Commonwealth Scientific and Industrial Research Organization
Discrete, Aircraft
CSIRO, Sample every 12 days
-40.53 144.30 [4000-5000]1
1991 06 - 2000 09
AIA055_02D2, Bass Strait/Cape Grim, Tasmania, Australia
Commonwealth Scientific and Industrial Research Organization
Discrete, Aircraft
CSIRO, Sample every 17 days
-40.53 144.30 [5000-6000]1
1992 04 - 2000 09
AIA065_02D2, Bass Strait/Cape Grim, Tasmania, Australia
Commonwealth Scientific and Industrial Research Organization
Discrete, Aircraft
CSIRO, Sample every 14 days
-40.53 144.30 [6000-7000]1
1992 04 - 2000 09
ALT_01D0, Alert, Nunavut, Canada
Environment Canada
Discrete, Single Fixed Position
ESRL, Sample every 4 days
82.45 -62.51 210
1985 06 - 2009 02
ALT_02D0, Alert, Nunavut, Canada
Commonwealth Scientific and Industrial Research Organization
Discrete, Single Fixed Position
CSIRO, Sample every 13 days
82.45 -62.51 210
1991 04 - 2009 02
ALT_06C0, Alert, Nunavut, Canada
Environment Canada
Quasi-continuous, Single Fixed Position
EC, Sample every 1 days
82.45 -62.51 210
1986 04 - 2009 02
ALT_06D0, Alert, Nunavut, Canada
Environment Canada
Discrete, Single Fixed Position
EC, Sample every 4 days
82.45 -62.51 210
1999 10 - 2009 02
AMS_01D0, Amsterdam Island, France
Centre des Faibles Radioactivities/TAAF
Discrete, Single Fixed Position
ESRL, Sample every 13 days
-37.95 77.53 150
1983 01 - 1990 10
ASC_01D0, Ascension Island, United Kingdom
USAF/Computer Science Raytheon
Discrete, Single Fixed Position
ESRL, Sample every 4 days
-7.92 -14.42 54
1983 05 - 2009 02
ASK_01D0, Assekrem, Algeria
Office National de la Meteorologie
Discrete, Single Fixed Position
ESRL, Sample every 8 days
23.18 5.42 2728
1995 09 - 2009 02
AVI_01D0, St. Croix, Virgin Islands, United States
Fairleigh Dickinson University
Discrete, Single Fixed Position
ESRL, Sample every 6 days
17.75 -64.75 3
1983 05 - 1990 08
AZR_01D0, Terceira Island, Azores, Portugal
Instituto Nacional de Meteorologia e Geofisica
Discrete, Single Fixed Position
ESRL, Sample every 10 days
38.77 -27.38 40
1983 05 - 2009 02
BAL_01D0, Baltic Sea, Poland
Morski Instytut Rybacki
Discrete, Single Fixed Position
ESRL, Sample every 4 days
55.35 17.22 3
1992 08 - 2009 02
BGU_11D0, Begur, Spain
Laboratoire des Sciences du Climat et de l'Environnement
Discrete, Single Fixed Position
LSCE, Sample every 10 days
41.83 3.33 30
2000 04 - 2009 02
BHD_01D0, Baring Head Station, New Zealand
National Institute of Water and Atmospheric Research
Discrete, Single Fixed Position
ESRL, Sample every 20 days
-41.41 174.87 80
1999 10 - 2009 02
BHD_15D0, Baring Head Station, New Zealand
National Institute of Water and Atmospheric Research
Discrete, Single Fixed Position
NIWA, Sample every 5 days
-41.41 174.87 80
1989 08 - 2008 12
BKT_01D0, Bukit Kototabang, Indonesia
Bureau of Meteorology and Geophysics
Discrete, Single Fixed Position
ESRL, Sample every 8 days
-0.20 100.32 864
2004 01 - 2009 02
BME_01D0, St. Davids Head, Bermuda, United Kingdom
Bermuda Biological Station
Discrete, Single Fixed Position
ESRL, Sample every 20 days
32.37 -64.65 30
1989 02 - 2008 11
BMW_01D0, Tudor Hill, Bermuda, United Kingdom
Bermuda Biological Station
Discrete, Single Fixed Position
ESRL, Sample every 13 days
32.27 -64.88 30
1989 05 - 2009 02
BNE010_01P2, Beaver Crossing, Nebraska, United States
Hap's Air Service, Inc.
Flask Package, Aircraft
ESRL, Sample every 7 days
40.80 -97.18 465
2004 09 - 2009 02
BNE030_01P2, Beaver Crossing, Nebraska, United States
Hap's Air Service, Inc.
Flask Package, Aircraft
ESRL, Sample every 8 days
40.80 -97.18 465
2004 09 - 2009 02
BNE050_01P2, Beaver Crossing, Nebraska, United States
Hap's Air Service, Inc.
Flask Package, Aircraft
ESRL, Sample every 16 days
40.80 -97.18 465
2004 09 - 2009 02
BNE070_01P2, Beaver Crossing, Nebraska, United States
Hap's Air Service, Inc.
Flask Package, Aircraft
ESRL, Sample every 12 days
40.80 -97.18 465
2004 09 - 2009 02
BRW_01C0, Barrow, Alaska, United States
NOAA ESRL Carbon Cycle
Quasi-continuous, Single Fixed Position
ESRL, Sample every 2 days
71.32 -156.61 11
1986 01 - 2008 12
BRW_01D0, Barrow, Alaska, United States
NOAA ESRL Global Monitoring Division
Discrete, Single Fixed Position
ESRL, Sample every 5 days
71.32 -156.61 11
1983 04 - 2009 02
BSC_01D0, Black Sea, Constanta, Romania
Romanian Marine Research Institute
Discrete, Single Fixed Position
ESRL, Sample every 8 days
44.17 28.68 3
1994 10 - 2009 02
CAR030_01P2, Briggsdale, Colorado, United States
Weisbart Aircraft Services
Flask Package, Aircraft
ESRL, Sample every 7 days
40.37 -104.30 1740
1992 11 - 2009 02
CAR040_01P2, Briggsdale, Colorado, United States
Weisbart Aircraft Services
Flask Package, Aircraft
ESRL, Sample every 6 days
40.37 -104.30 1740
1992 11 - 2009 02
CAR050_01P2, Briggsdale, Colorado, United States
Weisbart Aircraft Services
Flask Package, Aircraft
ESRL, Sample every 9 days
40.37 -104.30 1740
1992 11 - 2009 02
CAR060_01P2, Briggsdale, Colorado, United States
Weisbart Aircraft Services
Flask Package, Aircraft
ESRL, Sample every 11 days
40.37 -104.30 1740
1992 11 - 2009 02
CAR070_01P2, Briggsdale, Colorado, United States
Weisbart Aircraft Services
Flask Package, Aircraft
ESRL, Sample every 9 days
40.37 -104.30 1740
1995 07 - 2009 02
CAR080_01P2, Briggsdale, Colorado, United States
Weisbart Aircraft Services
Flask Package, Aircraft
ESRL, Sample every 12 days
40.37 -104.30 1740
1995 07 - 2009 02
CBA_01D0, Cold Bay, Alaska, United States
U.S. National Weather Service
Discrete, Single Fixed Position
ESRL, Sample every 5 days
55.21 -162.72 21
1983 05 - 2009 02
CDL030_06C3, Candle Lake, Saskatchewan, Canada
Environment Canada
Quasi-continuous, Tower
EC, Sample every 1 days
53.99 -105.12 600+30
2002 06 - 2007 12
CFA_02D0, Cape Ferguson, Queensland, Australia
Commonwealth Scientific and Industrial Research Organization
Discrete, Single Fixed Position
CSIRO, Sample every 10 days
-19.28 147.06 2
1991 06 - 2009 01
CGO_01D0, Cape Grim, Tasmania, Australia
CSIRO, Atmospheric Research
Discrete, Single Fixed Position
ESRL, Sample every 10 days
-40.68 144.69 94+70
1984 04 - 2009 02
CGO_02D0, Cape Grim, Tasmania, Australia
Commonwealth Scientific and Industrial Research Organization
Discrete, Single Fixed Position
CSIRO, Sample every 5 days
-40.68 144.69 94+70
1984 09 - 2009 01
CGO_43C0, Cape Grim, Tasmania, Australia
Advanced Global Atmospheric Gases Experiment
Quasi-continuous, Single Fixed Position
AGAGE, Sample every 1 days
-40.68 144.69 110and160
1993 08 - 2008 09
CHR_01D0, Christmas Island, Republic of Kiribati
Dive Kiribati
Discrete, Single Fixed Position
ESRL, Sample every 8 days
1.70 -157.17 3
1984 03 - 2009 02
CMO_01D0, Cape Meares, Oregon, United States
Oregon Graduate Institute of Science and Technology
Discrete, Single Fixed Position
ESRL, Sample every 22 days
45.48 -123.97 30
1983 05 - 1998 03
COI_20C0, Cape Ochi-ishi, Japan
National Institute for Environmental Studies
Quasi-continuous, Single Fixed Position
NIES, Sample every 1 days
43.15 145.50 100
1995 07 - 2004 12
CPT_36C0, Cape Point, South Africa
South African Weather Service
Quasi-continuous, Single Fixed Position
SAWS, Sample every 1 days
-34.35 18.49 230+30
1983 01 - 2008 12
CRI_02D0, Cape Rama, India
Commonwealth Scientific and Industrial Research Organization
Discrete, Single Fixed Position
CSIRO, Sample every 9 days
15.08 73.83 60
1993 02 - 2002 10
CRZ_01D0, Crozet Island, France
Centre des Faibles Radioactivities/TAAF
Discrete, Single Fixed Position
ESRL, Sample every 8 days
-46.45 51.85 120
1991 03 - 2009 02
CYA_02D0, Casey, Antarctica, Australia
Commonwealth Scientific and Industrial Research Organization
Discrete, Single Fixed Position
CSIRO, Sample every 9 days
-66.28 110.52 51
1997 06 - 2008 12
DAA_02D0, Darwin (Charles Point)/Jabirus, Northern Territory, Australia
Commonwealth Scientific and Industrial Research Organization
Discrete, Single Fixed Position
CSIRO, Sample every 10 days
-12.42 130.57 3
1992 10 - 1998 12
DND010_01P2, Dahlen, North Dakota, United States
FARGO JET CENTER
Flask Package, Aircraft
ESRL, Sample every 9 days
48.38 -99.00 463
2004 09 - 2009 02
DND030_01P2, Dahlen, North Dakota, United States
FARGO JET CENTER
Flask Package, Aircraft
ESRL, Sample every 7 days
48.38 -99.00 463
2004 09 - 2009 02
DND050_01P2, Dahlen, North Dakota, United States
FARGO JET CENTER
Flask Package, Aircraft
ESRL, Sample every 10 days
48.38 -99.00 463
2004 09 - 2009 02
DND070_01P2, Dahlen, North Dakota, United States
FARGO JET CENTER
Flask Package, Aircraft
ESRL, Sample every 10 days
48.38 -99.00 463
2004 09 - 2009 02
EGB_06C0, Egbert, Ontario, Canada
Environment Canada
Quasi-continuous, Single Fixed Position
EC, Sample every 1 days
44.23 -79.78 226+7
2005 03 - 2009 02
EIC_01D0, Easter Island, Chile
Direccion Meteorologica de Chile
Discrete, Single Fixed Position
ESRL, Sample every 10 days
-27.15 -109.45 50
1994 01 - 2009 02
ESP_02D0, Estevan Point, British Columbia, Canada
Commonwealth Scientific and Industrial Research Organization
Discrete, Single Fixed Position
CSIRO, Sample every 21 days
49.58 -126.37 7
1993 06 - 2002 01
ESP_06D0, Estevan Point, British Columbia, Canada
Environment Canada
Discrete, Single Fixed Position
EC, Sample every 7 days
49.58 -126.37 7
1999 12 - 2009 02
ESP005_01P2, Estevan Point, British Columbia, Canada
Private Party
Flask Package, Aircraft
ESRL, Sample every 7 days
49.58 -126.37 7
2002 11 - 2009 02
ESP015_01P2, Estevan Point, British Columbia, Canada
Private Party
Flask Package, Aircraft
ESRL, Sample every 4 days
49.58 -126.37 7
2002 11 - 2009 02
ESP025_01P2, Estevan Point, British Columbia, Canada
Private Party
Flask Package, Aircraft
ESRL, Sample every 7 days
49.58 -126.37 7
2002 11 - 2009 02
ESP035_01P2, Estevan Point, British Columbia, Canada
Private Party
Flask Package, Aircraft
ESRL, Sample every 7 days
49.58 -126.37 7
2002 11 - 2009 02
ESP045_01P2, Estevan Point, British Columbia, Canada
Private Party
Flask Package, Aircraft
ESRL, Sample every 6 days
49.58 -126.37 7
2002 11 - 2009 02
ESP055_01P2, Estevan Point, British Columbia, Canada
Private Party
Flask Package, Aircraft
ESRL, Sample every 13 days
49.58 -126.37 7
2002 11 - 2009 02
ETL105_06C3, East Trout Lake, Saskatchewan, Canada
Environment Canada
Quasi-continuous, Tower
EC, Sample every 1 days
54.35 -104.99 493+105
2005 08 - 2009 02
FRD040_06C3, Fraserdale, Canada
Environment Canada
Quasi-continuous, Tower
EC, Sample every 1 days
49.88 -81.57 210+40
1990 01 - 2009 02
GMI_01D0, Mariana Islands, Guam
University of Guam/Marine Laboratory
Discrete, Single Fixed Position
ESRL, Sample every 8 days
13.43 144.78 1
1983 05 - 2009 02
GOZ_01D0, Dwejra Point, Gozo, Malta
Ministry of Foreign Affairs and Environment
Discrete, Single Fixed Position
ESRL, Not Available
36.05 14.18 30
1993 10 - 1999 02
HAA005_01P2, Molokai Island, Hawaii, United States
Pacific Air Charters, Inc.
Flask Package, Aircraft
ESRL, Sample every 9 days
21.23 -158.95 3
1999 05 - 2008 04
HAA015_01P2, Molokai Island, Hawaii, United States
Pacific Air Charters, Inc.
Flask Package, Aircraft
ESRL, Sample every 10 days
21.23 -158.95 3
1999 05 - 2008 04
HAA025_01P2, Molokai Island, Hawaii, United States
Pacific Air Charters, Inc.
Flask Package, Aircraft
ESRL, Sample every 9 days
21.23 -158.95 3
1999 05 - 2008 04
HAA035_01P2, Molokai Island, Hawaii, United States
Pacific Air Charters, Inc.
Flask Package, Aircraft
ESRL, Sample every 7 days
21.23 -158.95 3
1999 05 - 2008 04
HAA045_01P2, Molokai Island, Hawaii, United States
Pacific Air Charters, Inc.
Flask Package, Aircraft
ESRL, Sample every 8 days
21.23 -158.95 3
1999 05 - 2008 04
HAA055_01P2, Molokai Island, Hawaii, United States
Pacific Air Charters, Inc.
Flask Package, Aircraft
ESRL, Sample every 11 days
21.23 -158.95 3
1999 05 - 2008 04
HAA065_01P2, Molokai Island, Hawaii, United States
Pacific Air Charters, Inc.
Flask Package, Aircraft
ESRL, Sample every 13 days
21.23 -158.95 3
1999 05 - 2008 04
HAA075_01P2, Molokai Island, Hawaii, United States
Pacific Air Charters, Inc.
Flask Package, Aircraft
ESRL, Sample every 11 days
21.23 -158.95 3
1999 05 - 2008 04
HAT_20C0, Hateruma Island, Japan
National Institute for Environmental Studies
Quasi-continuous, Single Fixed Position
NIES, Sample every 1 days
24.05 123.80 47
1996 01 - 2004 12
HBA_01D0, Halley Station, Antarctica, United Kingdom
British Antarctic Survey
Discrete, Single Fixed Position
ESRL, Sample every 8 days
-75.58 -26.50 30
1983 01 - 2008 12
HFM005_01P2, Harvard Forest, Massachusetts, United States
FOUR STAR AVIATION
Flask Package, Aircraft
ESRL, Sample every 13 days
42.54 -72.17 340
1999 11 - 2007 11
HFM015_01P2, Harvard Forest, Massachusetts, United States
FOUR STAR AVIATION
Flask Package, Aircraft
ESRL, Sample every 9 days
42.54 -72.17 340
1999 11 - 2007 11
HFM025_01P2, Harvard Forest, Massachusetts, United States
FOUR STAR AVIATION
Flask Package, Aircraft
ESRL, Sample every 10 days
42.54 -72.17 340
1999 11 - 2007 11
HFM035_01P2, Harvard Forest, Massachusetts, United States
FOUR STAR AVIATION
Flask Package, Aircraft
ESRL, Sample every 13 days
42.54 -72.17 340
1999 11 - 2007 11
HFM045_01P2, Harvard Forest, Massachusetts, United States
FOUR STAR AVIATION
Flask Package, Aircraft
ESRL, Sample every 21 days
42.54 -72.17 340
1999 11 - 2007 11
HFM055_01P2, Harvard Forest, Massachusetts, United States
FOUR STAR AVIATION
Flask Package, Aircraft
ESRL, Sample every 18 days
42.54 -72.17 340
1999 11 - 2007 11
HFM065_01P2, Harvard Forest, Massachusetts, United States
FOUR STAR AVIATION
Flask Package, Aircraft
ESRL, Sample every 13 days
42.54 -72.17 340
1999 11 - 2007 11
HFM075_01P2, Harvard Forest, Massachusetts, United States
FOUR STAR AVIATION
Flask Package, Aircraft
ESRL, Sample every 21 days
42.54 -72.17 340
1999 11 - 2007 11
HIL010_01P2, Homer, Illinois, United States
MIDWEST AVTECH
Flask Package, Aircraft
ESRL, Sample every 7 days
40.07 -87.91 201
2004 09 - 2009 02
HIL030_01P2, Homer, Illinois, United States
MIDWEST AVTECH
Flask Package, Aircraft
ESRL, Sample every 7 days
40.07 -87.91 201
2004 09 - 2009 02
HIL050_01P2, Homer, Illinois, United States
MIDWEST AVTECH
Flask Package, Aircraft
ESRL, Sample every 7 days
40.07 -87.91 201
2004 09 - 2009 02
HIL070_01P2, Homer, Illinois, United States
MIDWEST AVTECH
Flask Package, Aircraft
ESRL, Sample every 7 days
40.07 -87.91 201
2004 09 - 2009 02
HPB_01D0, Hohenpeissenberg, Germany
Deutscher Wetterdienst
Discrete, Single Fixed Position
ESRL, Sample every 7 days
47.80 11.01 985
2006 04 - 2009 02
HUN_01D0, Hegyhatsal, Hungary
Hungarian Meteorological Service
Discrete, Single Fixed Position
ESRL, Sample every 7 days
46.95 16.65 248+96
1993 03 - 2009 02
ICE_01D0, Storhofdi, Vestmannaeyjar, Iceland
Icelandic Meteorological Service
Discrete, Single Fixed Position
ESRL, Sample every 7 days
63.40 -20.29 118
1992 10 - 2009 02
ITN_01D0, Grifton, North Carolina, United States
WITN Television
Discrete, Single Fixed Position
ESRL, Sample every 8 days
35.35 -77.38 9
1992 07 - 1999 06
ITN051_01C3, Grifton, North Carolina, United States
NOAA ESRL Carbon Cycle
Quasi-continuous, Tower
ESRL, Sample every 1 days
35.35 -77.38 9+51
1994 10 - 1999 06
ITN123_01C3, Grifton, North Carolina, United States
NOAA ESRL Carbon Cycle
Quasi-continuous, Tower
ESRL, Sample every 1 days
35.35 -77.38 9+123
1994 10 - 1999 06
ITN496_01C3, Grifton, North Carolina, United States
NOAA ESRL Carbon Cycle
Quasi-continuous, Tower
ESRL, Sample every 1 days
35.35 -77.38 9+496
1994 10 - 1999 06
IZO_01D0, Tenerife, Canary Islands, Spain
Izana Observatory/Meteorological State Agency of Spain
Discrete, Single Fixed Position
ESRL, Sample every 8 days
28.31 -16.50 2360
1991 11 - 2009 02
IZO_27C0, Tenerife, Canary Islands, Spain
Izana Atmospheric Research Center, Meteorological State Agency of Spain
Quasi-continuous, Single Fixed Position
AEMET, Sample every 1 days
28.31 -16.50 2360
1984 07 - 2009 02
KEY_01D0, Key Biscayne, Florida, United States
NOAA Atlantic Oceanographic and Meteorological Laboratory
Discrete, Single Fixed Position
ESRL, Sample every 11 days
25.67 -80.16 3
1983 10 - 2009 02
KUM_01D0, Cape Kumukahi, Hawaii, United States
NOAA ESRL Global Monitoring Division
Discrete, Single Fixed Position
ESRL, Sample every 4 days
19.52 -154.82 3
1983 04 - 2009 02
KZD_01D0, Sary Taukum, Kazakhstan
Kazakh Scientific Institute of Environmental Monitoring and Climate
Discrete, Single Fixed Position
ESRL, Sample every 7 days
44.08 76.87 601
1997 10 - 2009 02
KZM_01D0, Plateau Assy, Kazakhstan
Kazakh Scientific Institute of Environmental Monitoring and Climate
Discrete, Single Fixed Position
ESRL, Sample every 7 days
43.25 77.88 2519
1997 10 - 2009 02
LEF_01D0, Park Falls, Wisconsin, United States
Wisconsin Educational Communications Board
Discrete, Single Fixed Position
ESRL, Sample every 7 days
45.95 -90.27 472
1994 12 - 2009 02
LEF030_01C3, Park Falls, Wisconsin, United States
USDA Forest Service Forestry Sciences Laboratory
Quasi-continuous, Tower
ESRL, Sample every 1 days
45.95 -90.27 472+30
1995 06 - 1999 12
LEF076_01C3, Park Falls, Wisconsin, United States
USDA Forest Service Forestry Sciences Laboratory
Quasi-continuous, Tower
ESRL, Sample every 1 days
45.95 -90.27 472+76
1995 06 - 1999 12
LEF396_01C3, Park Falls, Wisconsin, United States
USDA Forest Service Forestry Sciences Laboratory
Quasi-continuous, Tower
ESRL, Sample every 1 days
45.95 -90.27 472+396
1995 06 - 1999 09
LEF010_01P2, Park Falls, Wisconsin, United States
MBMAS
Flask Package, Aircraft
ESRL, Sample every 4 days
45.95 -90.27 472
2002 08 - 2009 02
LEF020_01P2, Park Falls, Wisconsin, United States
MBMAS
Flask Package, Aircraft
ESRL, Sample every 5 days
45.95 -90.27 472
2002 08 - 2009 02
LEF030_01P2, Park Falls, Wisconsin, United States
MBMAS
Flask Package, Aircraft
ESRL, Sample every 6 days
45.95 -90.27 472
2002 08 - 2009 02
LEF040_01P2, Park Falls, Wisconsin, United States
MBMAS
Flask Package, Aircraft
ESRL, Sample every 8 days
45.95 -90.27 472
2002 08 - 2009 02
LLB010_06C3, Lac La Biche, Alberta, Canada
Environment Canada
Quasi-continuous, Tower
EC, Sample every 1 days
54.95 -112.45 540+10
2007 04 - 2009 02
LMP_01D0, Lampedusa, Italy
Ente per le Nuove tecnologie, l’Energia e l’Ambiente
Discrete, Single Fixed Position
ESRL, Sample every 7 days
35.52 12.62 45
2006 10 - 2009 02
LMP_28D0, Lampedusa, Italy
National Agency for New Technology, Energy, and Environment
Discrete, Single Fixed Position
ENEA, Sample every 8 days
35.52 12.62 45
1995 01 - 2004 12
LPO_11D0, Ile Grande, France
Laboratoire des Sciences du Climat et de l'Environnement
Discrete, Single Fixed Position
LSCE, Sample every 11 days
48.80 -3.58 20
2004 11 - 2009 01
MAA_02D0, Mawson Station, Antarctica, Australia
Commonwealth Scientific and Industrial Research Organization
Discrete, Single Fixed Position
CSIRO, Sample every 7 days
-67.62 62.87 32
1984 04 - 2009 01
MBC_01D0, Mould Bay, Nunavut, Canada
Environment Canada/Meteorological Service of Canada
Discrete, Single Fixed Position
ESRL, Sample every 5 days
76.25 -119.35 58
1983 04 - 1997 05
MCM_01D0, McMurdo Station, Antarctica, United States
National Science Foundation
Discrete, Single Fixed Position
ESRL, Not Available
-77.83 166.60 11
1985 12 - 1987 10
MHD_01D0, Mace Head, County Galway, Ireland
University College Galway
Discrete, Single Fixed Position
ESRL, Sample every 9 days
53.33 -9.90 25
1991 06 - 2009 02
MHD_43C0, Mace Head, County Galway, Ireland
Advanced Global Atmospheric Gases Experiment
Quasi-continuous, Single Fixed Position
AGAGE, Sample every 1 days
53.33 -9.90 25
1994 03 - 2008 09
MID_01D0, Sand Island, Midway, United States
U.S. Fish and Wildlife Service
Discrete, Single Fixed Position
ESRL, Sample every 7 days
28.21 -177.38 3
1985 05 - 2009 02
MKN_01D0, Mt. Kenya, Kenya
Kenya Meteorological Department
Discrete, Single Fixed Position
ESRL, Not Available
-0.05 37.30 3897
2003 12 - 2009 02
MLO_01C0, Mauna Loa, Hawaii, United States
NOAA ESRL Carbon Cycle
Quasi-continuous, Single Fixed Position
ESRL, Sample every 1 days
19.54 -155.58 3397
1987 04 - 2008 12
MLO_01D0, Mauna Loa, Hawaii, United States
NOAA ESRL Global Monitoring Division
Discrete, Single Fixed Position
ESRL, Sample every 4 days
19.54 -155.58 3397
1983 05 - 2009 02
MLO_02D0, Mauna Loa, Hawaii, United States
Commonwealth Scientific and Industrial Research Organization
Discrete, Single Fixed Position
CSIRO, Sample every 8 days
19.54 -155.58 3397
1991 05 - 2009 02
MNM_19C0, Minamitorishima, Japan
Japan Meteorological Agency
Quasi-continuous, Single Fixed Position
JMA, Sample every 1 days
24.30 153.97 8
1994 01 - 2008 12
MQA_02D0, Macquarie Island, Australia
Commonwealth Scientific and Industrial Research Organization
Discrete, Single Fixed Position
CSIRO, Sample every 9 days
-54.48 158.97 12
1990 04 - 2009 01
NHA005_01P2, Worcester, Massachusetts, United States
Private Party
Flask Package, Aircraft
ESRL, Sample every 6 days
42.95 -70.63 0
2003 09 - 2009 01
NHA015_01P2, Worcester, Massachusetts, United States
Private Party
Flask Package, Aircraft
ESRL, Sample every 7 days
42.95 -70.63 0
2003 09 - 2009 01
NHA025_01P2, Worcester, Massachusetts, United States
Private Party
Flask Package, Aircraft
ESRL, Sample every 10 days
42.95 -70.63 0
2003 09 - 2009 01
NHA035_01P2, Worcester, Massachusetts, United States
Private Party
Flask Package, Aircraft
ESRL, Sample every 8 days
42.95 -70.63 0
2003 09 - 2009 01
NHA045_01P2, Worcester, Massachusetts, United States
Private Party
Flask Package, Aircraft
ESRL, Sample every 29 days
42.95 -70.63 0
2003 09 - 2008 10
NHA055_01P2, Worcester, Massachusetts, United States
Private Party
Flask Package, Aircraft
ESRL, Sample every 15 days
42.95 -70.63 0
2003 09 - 2009 01
NWR_01D0, Niwot Ridge, Colorado, United States
University of Colorado/INSTAAR
Discrete, Single Fixed Position
ESRL, Sample every 7 days
40.05 -105.58 3523
1983 06 - 2009 02
PAL_01D0, Pallas-Sammaltunturi, GAW Station, Finland
Finnish Meteorological Institute (FMI)
Discrete, Single Fixed Position
ESRL, Sample every 8 days
67.97 24.12 560
2001 12 - 2009 02
PDM_11D0, Pic Du Midi, France
Laboratoire des Sciences du Climat et de l'Environnement
Discrete, Single Fixed Position
LSCE, Sample every 10 days
42.93 0.13 2877
2001 06 - 2009 02
PFA015_01P2, Poker Flat, Alaska, United States
Warbelows Air Ventures, Inc.
Flask Package, Aircraft
ESRL, Sample every 10 days
65.07 -147.29 210
1999 06 - 2009 02
PFA025_01P2, Poker Flat, Alaska, United States
Warbelows Air Ventures, Inc.
Flask Package, Aircraft
ESRL, Sample every 7 days
65.07 -147.29 210
1999 06 - 2009 02
PFA035_01P2, Poker Flat, Alaska, United States
Warbelows Air Ventures, Inc.
Flask Package, Aircraft
ESRL, Sample every 5 days
65.07 -147.29 210
1999 06 - 2009 02
PFA045_01P2, Poker Flat, Alaska, United States
Warbelows Air Ventures, Inc.
Flask Package, Aircraft
ESRL, Sample every 6 days
65.07 -147.29 210
1999 06 - 2009 02
PFA055_01P2, Poker Flat, Alaska, United States
Warbelows Air Ventures, Inc.
Flask Package, Aircraft
ESRL, Sample every 8 days
65.07 -147.29 210
1999 06 - 2009 02
PFA065_01P2, Poker Flat, Alaska, United States
Warbelows Air Ventures, Inc.
Flask Package, Aircraft
ESRL, Sample every 9 days
65.07 -147.29 210
1999 06 - 2009 02
PFA075_01P2, Poker Flat, Alaska, United States
Warbelows Air Ventures, Inc.
Flask Package, Aircraft
ESRL, Sample every 17 days
65.07 -147.29 210
1999 06 - 2009 02
POCS35_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Not Available
[-37.50..-32.50]1 [160.0..-176.0]1 10
1986 12 - 2007 07
POCS30_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 21 days
[-32.50..-27.50]1 [176.0..-168.0]1 10
1986 12 - 2009 02
POCS25_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 21 days
[-27.50..-22.50]1 [178.0..-160.0]1 10
1986 12 - 2009 02
POCS20_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 20 days
[-22.50..-17.50]1 [176.0..-164.0]1 10
1986 12 - 2009 02
POCS15_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 23 days
[-17.50..-12.50]1 [178.0..-160.0]1 10
1986 12 - 2009 02
POCS10_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 20 days
[-12.50..-7.50]1 [-178.0..-144.0]1 10
1986 12 - 2009 02
POCS05_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 21 days
[-7.50..-2.50]1 [-176.0..-142.0]1 10
1986 12 - 2009 02
POC000_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 20 days
[-2.50..2.50]1 [-172.0..-138.0]1 10
1986 12 - 2009 02
POCN05_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 20 days
[2.50..7.50]1 [-168.0..-134.0]1 10
1986 12 - 2009 02
POCN10_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 21 days
[7.50..12.50]1 [-166.0..-132.0]1 10
1987 01 - 2009 02
POCN15_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 20 days
[12.50..17.50]1 [-162.0..-128.0]1 10
1986 12 - 2009 02
POCN20_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 20 days
[17.50..22.50]1 [-158.0..-124.0]1 10
1986 12 - 2009 02
POCN25_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 23 days
[22.50..27.50]1 [-156.0..-122.0]1 10
1986 12 - 2009 01
POCN30_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Not Available
[27.50..32.50]1 [-150.0..-120.0]1 10
1986 12 - 2009 01
POCN35_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Not Available
[32.50..37.50]1 [-148.0..-126.0]1 10
1987 01 - 2007 06
POCN40_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Not Available
[37.50..42.50]1 [-140.0..-132.0]1 10
1987 06 - 1996 08
POCN45_01D1, Pacific Ocean, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Not Available
[42.50..47.50]1 [-134.0..-128.0]1 10
1987 06 - 1996 08
PSA_01D0, Palmer Station, Antarctica, United States
National Science Foundation
Discrete, Single Fixed Position
ESRL, Sample every 7 days
-64.92 -64.00 10
1983 01 - 2009 02
PTA_01D0, Point Arena, California, United States
Point Arena Lighthouse Keepers, Inc.
Discrete, Single Fixed Position
ESRL, Sample every 8 days
38.95 -123.74 17
1999 01 - 2009 02
PUY_11D0, Puy de Dome, France
Laboratoire des Sciences du Climat et de l'Environnement
Discrete, Single Fixed Position
LSCE, Sample every 7 days
45.77 2.97 1465
2001 07 - 2009 02
RPB_01D0, Ragged Point, Barbados
Private Party
Discrete, Single Fixed Position
ESRL, Sample every 8 days
13.17 -59.43 45
1987 11 - 2009 02
RPB_43C0, Ragged Point, Barbados
Advanced Global Atmospheric Gases Experiment
Quasi-continuous, Single Fixed Position
AGAGE, Sample every 1 days
13.17 -59.43 45
1996 06 - 2008 09
RTA005_01P2, Rarotonga, Cook Islands
Air Rarotonga LTD.
Flask Package, Aircraft
ESRL, Not Available
-21.25 -159.83 3
2000 04 - 2009 01
RTA015_01P2, Rarotonga, Cook Islands
Air Rarotonga LTD.
Flask Package, Aircraft
ESRL, Not Available
-21.25 -159.83 3
2000 04 - 2009 01
RTA025_01P2, Rarotonga, Cook Islands
Air Rarotonga LTD.
Flask Package, Aircraft
ESRL, Not Available
-21.25 -159.83 3
2000 04 - 2009 01
RTA035_01P2, Rarotonga, Cook Islands
Air Rarotonga LTD.
Flask Package, Aircraft
ESRL, Not Available
-21.25 -159.83 3
2000 04 - 2009 01
RTA045_01P2, Rarotonga, Cook Islands
Air Rarotonga LTD.
Flask Package, Aircraft
ESRL, Not Available
-21.25 -159.83 3
2000 04 - 2009 01
RYO_19C0, Ryori BAPMon Station, Japan
Japan Meteorological Agency
Quasi-continuous, Single Fixed Position
JMA, Sample every 1 days
39.03 141.83 260
1991 01 - 2008 12
SBL_06C0, Sable Island, Nova Scotia, Canada
Environment Canada
Quasi-continuous, Single Fixed Position
EC, Sample every 1 days
49.93 -60.02 5
2003 06 - 2009 02
SCSN03_01D1, South China Sea, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 14 days
[1.50..4.50]1 105.00 15
1991 07 - 1998 10
SCSN06_01D1, South China Sea, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 13 days
[4.50..7.50]1 107.00 15
1991 07 - 1998 10
SCSN09_01D1, South China Sea, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 14 days
[7.50..10.50]1 109.00 15
1991 07 - 1998 10
SCSN12_01D1, South China Sea, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 13 days
[10.50..13.50]1 111.00 15
1991 07 - 1998 10
SCSN15_01D1, South China Sea, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 13 days
[13.50..16.50]1 113.00 15
1991 07 - 1998 10
SCSN18_01D1, South China Sea, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 14 days
[16.50..19.50]1 113.50 15
1991 07 - 1998 10
SCSN21_01D1, South China Sea, N/A
NOAA ESRL Carbon Cycle
Discrete, Ship
ESRL, Sample every 15 days
[19.50..22.50]1 114.00 15
1991 07 - 1998 10
SEY_01D0, Mahe Island, Seychelles
Seychelles Bureau of Standards
Discrete, Single Fixed Position
ESRL, Sample every 7 days
-4.67 55.17 3
1983 05 - 2009 02
SGP374_01D0, Southern Great Plains, Oklahoma, United States
Lawrence Berkeley National Laboratory
Discrete, Single Fixed Position
ESRL, Sample every 7 days
36.80 -97.50 314
2002 04 - 2009 02
SHM_01D0, Shemya Island, Alaska, United States
PIQUNIQ Management Corporation
Discrete, Single Fixed Position
ESRL, Sample every 8 days
52.72 174.10 40
1985 09 - 2009 02
SIS_02D0, Shetland Islands, Scotland
Commonwealth Scientific and Industrial Research Organization
Discrete, Single Fixed Position
CSIRO, Sample every 14 days
60.17 -1.17 30
1992 11 - 2003 12
SMO_01D0, Tutuila, American Samoa
NOAA ESRL Global Monitoring Division
Discrete, Single Fixed Position
ESRL, Sample every 4 days
-14.25 -170.56 42
1983 04 - 2009 02
SMO_43C0, Tutuila, American Samoa
Advanced Global Atmospheric Gases Experiment
Quasi-continuous, Single Fixed Position
AGAGE, Sample every 1 days
-14.25 -170.56 42
1996 08 - 2008 09
SPO_01D0, South Pole, Antarctica, United States
NOAA ESRL Global Monitoring Division and National Science Foundation
Discrete, Single Fixed Position
ESRL, Sample every 5 days
-89.98 -24.80 2810
1983 02 - 2009 01
SPO_02D0, South Pole, Antarctica, United States
Commonwealth Scientific and Industrial Research Organization
Discrete, Single Fixed Position
CSIRO, Sample every 8 days
-89.98 -24.80 2810
1991 03 - 2009 01
STM_01D0, Ocean Station M, Norway
Norway Meteorological Institute
Discrete, Single Fixed Position
ESRL, Sample every 4 days
66.00 2.00 5
1983 04 - 2009 02
SUM_01D0, Summit, Greenland
Department of Hydrology and Water Resources, Univ. of Arizona/NSF
Discrete, Single Fixed Position
ESRL, Sample every 7 days
72.58 -38.48 3238
1997 06 - 2009 02
SYO_01D0, Syowa Station, Antarctica, Japan
National Institute of Polar Research
Discrete, Single Fixed Position
ESRL, Sample every 15 days
-69.00 39.58 11
1986 04 - 2009 01
TAP_01D0, Tae-ahn Peninsula, Republic of Korea
Korea-China Centre for Atmospheric Research
Discrete, Single Fixed Position
ESRL, Sample every 5 days
36.73 126.13 20
1990 11 - 2009 02
TDF_01D0, Tierra Del Fuego, Ushuaia, Argentina
Servicio Meteorologico Nacional
Discrete, Single Fixed Position
ESRL, Sample every 18 days
-54.87 -68.48 20
1994 09 - 2009 02
TGC005_01P2, Sinton, Texas, United States
Skypark Aviation
Flask Package, Aircraft
ESRL, Sample every 10 days
27.73 -96.86 0
2003 09 - 2009 02
TGC015_01P2, Sinton, Texas, United States
Skypark Aviation
Flask Package, Aircraft
ESRL, Sample every 20 days
27.73 -96.86 0
2003 09 - 2009 01
TGC025_01P2, Sinton, Texas, United States
Skypark Aviation
Flask Package, Aircraft
ESRL, Sample every 10 days
27.73 -96.86 0
2003 09 - 2009 02
TGC035_01P2, Sinton, Texas, United States
Skypark Aviation
Flask Package, Aircraft
ESRL, Sample every 10 days
27.73 -96.86 0
2003 09 - 2009 02
TGC045_01P2, Sinton, Texas, United States
Skypark Aviation
Flask Package, Aircraft
ESRL, Sample every 21 days
27.73 -96.86 0
2003 09 - 2009 02
TGC055_01P2, Sinton, Texas, United States
Skypark Aviation
Flask Package, Aircraft
ESRL, Sample every 22 days
27.73 -96.86 0
2003 09 - 2009 02
TGC065_01P2, Sinton, Texas, United States
Skypark Aviation
Flask Package, Aircraft
ESRL, Sample every 10 days
27.73 -96.86 0
2003 09 - 2009 02
TGC075_01P2, Sinton, Texas, United States
Skypark Aviation
Flask Package, Aircraft
ESRL, Sample every 20 days
27.73 -96.86 0
2003 09 - 2009 02
THD_43C0, Trinidad Head, California, United States
Advanced Global Atmospheric Gases Experiment
Quasi-continuous, Single Fixed Position
AGAGE, Sample every 1 days
41.05 -124.15 107
1995 10 - 2008 09
THD005_01P2, Trinidad Head, California, United States
Becco, Inc.
Flask Package, Aircraft
ESRL, Sample every 15 days
41.05 -124.15 107
2003 09 - 2009 02
THD015_01P2, Trinidad Head, California, United States
Becco, Inc.
Flask Package, Aircraft
ESRL, Not Available
41.05 -124.15 107
2003 09 - 2009 02
THD025_01P2, Trinidad Head, California, United States
Becco, Inc.
Flask Package, Aircraft
ESRL, Sample every 14 days
41.05 -124.15 107
2003 12 - 2009 02
THD035_01P2, Trinidad Head, California, United States
Becco, Inc.
Flask Package, Aircraft
ESRL, Sample every 14 days
41.05 -124.15 107
2003 09 - 2009 02
THD045_01P2, Trinidad Head, California, United States
Becco, Inc.
Flask Package, Aircraft
ESRL, Not Available
41.05 -124.15 107
2003 09 - 2009 02
THD055_01P2, Trinidad Head, California, United States
Becco, Inc.
Flask Package, Aircraft
ESRL, Not Available
41.05 -124.15 107
2003 09 - 2009 02
THD065_01P2, Trinidad Head, California, United States
Becco, Inc.
Flask Package, Aircraft
ESRL, Sample every 14 days
41.05 -124.15 107
2003 09 - 2009 02
THD075_01P2, Trinidad Head, California, United States
Becco, Inc.
Flask Package, Aircraft
ESRL, Not Available
41.05 -124.15 107
2003 09 - 2009 02
TRM_11D0, Tromelin Island, France
Laboratoire des Sciences du Climat et de l'Environnement
Discrete, Single Fixed Position
LSCE, Sample every 18 days
-15.88 54.52 20
1999 01 - 2004 01
UTA_01D0, Wendover, Utah, United States
U.S. National Weather Service
Discrete, Single Fixed Position
ESRL, Sample every 8 days
39.90 -113.72 1320
1993 05 - 2009 02
UUM_01D0, Ulaan Uul, Mongolia
Mongolian Hydrometeorological Research Institute
Discrete, Single Fixed Position
ESRL, Sample every 7 days
44.45 111.10 914
1992 01 - 2009 02
WBI010_01P2, West Branch, Iowa, United States
Hap's Air Service, Inc.
Flask Package, Aircraft
ESRL, Sample every 7 days
41.72 -91.35 241
2004 09 - 2009 02
WBI030_01P2, West Branch, Iowa, United States
Hap's Air Service, Inc.
Flask Package, Aircraft
ESRL, Sample every 7 days
41.72 -91.35 241
2004 09 - 2009 02
WBI050_01P2, West Branch, Iowa, United States
Hap's Air Service, Inc.
Flask Package, Aircraft
ESRL, Sample every 7 days
41.72 -91.35 241
2004 09 - 2009 02
WBI070_01P2, West Branch, Iowa, United States
Hap's Air Service, Inc.
Flask Package, Aircraft
ESRL, Sample every 7 days
41.72 -91.35 241
2004 09 - 2009 02
WIS_01D0, Sede Boker, Negev Desert, Israel
Weizmann Institute of Science
Discrete, Single Fixed Position
ESRL, Sample every 7 days
31.13 34.88 400
1995 11 - 2009 02
WLG_01D0, Mt. Waliguan, Peoples Republic of China
Chinese Academy of Meteorological Sciences
Discrete, Single Fixed Position
ESRL, Sample every 7 days
36.29 100.90 3810
1991 05 - 2009 02
WLG_33C0, Mt. Waliguan, Peoples Republic of China
Chinese Academy of Meteorological Sciences
Quasi-continuous, Single Fixed Position
CMA, Sample every 2 days
36.29 100.90 3810
1994 08 - 2007 12
YON_19C0, Yonagunijima, Japan
Japan Meteorological Agency
Quasi-continuous, Single Fixed Position
JMA, Sample every 1 days
24.47 123.02 30
1998 01 - 2008 12
ZEP_01D0, Ny-Alesund, Svalbard, Norway and Sweden
Zeppelin Station/University of Stockholm Meteorological Institute
Discrete, Single Fixed Position
ESRL, Sample every 8 days
78.90 11.88 475
1994 02 - 2009 02
1Samples are collected within the range specified.