The following table contains the contributors of the data actually used in the global analysis for the Bulletin.

CO₂

Station Name	Country/Territory	GAW ID	Contributor
Alert	Canada	ALT	ECCC
Alert	Canada	ALT	NOAA
Amsterdam Island	France	AMS	LSCE
Amsterdam Island	France	AMS	NOAA
Arembepe	Brazil	ABP	NOAA
Ascension Island	United Kingdom of Great Britain and Northern Ireland	ASC	NOAA
Assekrem	Algeria	ASK	NOAA
Baltic Sea	Poland	BAL	NOAA
Baring Head	New Zealand	BHD	NIWA
Baring Head	New Zealand	BHD	NOAA
Barrow (AK)	United States of America	BRW	NOAA
Begur	Spain	BGU	LSCE
Behchoko	Canada	BCK	ECCC
Bering Island	Russian Federation	BER	MGO
Bilsdale	United Kingdom of Great Britain and Northern Ireland	BSD	UNIVBRIS
Bratt's Lake	Canada	BRA	ECCC
Brotjacklriegel	Germany	BRT	UBAG
Cambridge Bay	Canada	CBY	ECCC
Candle Lake	Canada	CDL	ECCC
Cape Ferguson	Australia	CFA	CSIRO
Cape Kumukahi (HI)	United States of America	KUM	NOAA
Cape Meares (OR)	United States of America	CMO	NOAA
Cape Ochiishi	Japan	COI	NIES
Cape Point	South Africa	CPT	SAWS
Cape Rama	India	CRI	CSIRO
Cape Verde Atmospheric Observatory	Cabo Verde	CVO	UoE
Cape Verde Atmospheric Observatory	Cabo Verde	CVO	UYRK
Capo Granitola	Italy	CGR	ISAC
Casey	Australia	CYA	CSIRO
Chapais	Canada	CPS	ECCC
Chibougamau	Canada	CHM	ECCC
Christmas Island	Kiribati	CHR	NOAA
Churchill	Canada	CHL	ECCC
Cold Bay (AK)	United States of America	CBA	NOAA
Crozet	France	CRZ	NOAA
Drake Passage	United States of America	DRP	NOAA
Dwejra Point	Malta	GOZ	NOAA
East Trout Lake	Canada	ETL	ECCC
Easter Island	Chile	EIC	NOAA
Egbert	Canada	EGB	ECCC
El Tololo	Chile	TLL	DMC
Estevan Point	Canada	ESP	CSIRO
Estevan Point	Canada	ESP	ECCC
Esther	Canada	EST	ECCC
Fraserdale	Canada	FSD	ECCC
Gartow	Germany	GAT	DWD
Gobabeb	Namibia	NMB	NOAA
Gosan	Republic of Korea	GSN	GERC
Gosan	Republic of Korea	GSN	KMA
Gosan	Republic of Korea	GSN	METRI
Guam (Mariana Island)	United States of America	GMI	NOAA
Halley	United Kingdom of Great Britain and Northern Ireland	HBA	NOAA
Hateruma Island	Japan	HAT	NIES
Heathfield	United Kingdom of Great Britain and Northern Ireland	HFD	NPL
Hegyhátsál háttérszennyettség-mérő állomás	Hungary	HUN	NOAA
Helgoland	Germany	HEL	DWD
Hohenpeissenberg	Germany	HPB	NOAA
Inuvik	Canada	INU	ECCC
Izaña (Tenerife)	Spain	IZO	AEMET
Jubany	Argentina	JBN	IAA
Jungfraujoch	Switzerland	JFJ	Empa
Jungfraujoch	Switzerland	JFJ	KUP
Kecskemét K-puszta háttérszennyettség-mérő állomás	Hungary	KPS	HMS
Kennaook / Cape Grim	Australia	CGO	CSIRO
Kennaook / Cape Grim	Australia	CGO	NOAA
Key Biscane (FL)	United States of America	KEY	NOAA
Kotelnyj Island	Russian Federation	KOT	MGO
Kyzylcha	Uzbekistan	KYZ	MGO
Lac La Biche (Alberta)	Canada	LLB	ECCC
Lampedusa	Italy	LMP	ENEA
Lampedusa	Italy	LMP	NOAA
Lauder	New Zealand	LAU	NIWA
Lerwick	United Kingdom of Great Britain and Northern Ireland	SIS	CSIRO
Lulin	Taiwan, Province of China	LLN	NOAA
Mace Head	Ireland	MHD	NOAA
Macquarie Island	Australia	MQA	CSIRO
Madonie - Piano Battaglia	Italy	MDN	ENEA
Mahé	Seychelles	SEY	NOAA
Mauna Loa (HI)	United States of America	MLO	NOAA
Mawson	Australia	MAA	CSIRO
Mex High Altitude Global Climate Observation Center	Mexico	MEX	NOAA
Minamitorishima	Japan	MNM	JMA
Monte Cimone	Italy	CMN	IAFMS
Mould Bay	Canada	MBC	NOAA
Mt. Dodaira	Japan	DDR	SAIPF
Mt. Kenya	Kenya	MKN	KMD
Mt. Kenya	Kenya	MKN	NOAA
Mt. Waliguan	China	WLG	CMA
Mt. Waliguan	China	WLG	NOAA
Natal	Brazil	NAT	NOAA
Niwot Ridge - T-van (CO)	United States of America	NWR	NOAA
Ocean Station Charlie	United States of America	STC	MGO
Ocean Station M	Norway	STM	NOAA
Ochsenkopf	Germany	OXK	DWD
Ochsenkopf	Germany	OXK	NOAA
Olympic Peninsula (WA)	United States of America	OPW	NOAA
Pacific Ocean	United States of America	POC	NOAA
Pallas	Finland	PAL	FMI
Palmer Station	United States of America	PSA	NOAA
Pic du Midi	France	PDM	LSCE
Plateau Assy	Kazakhstan	KZM	NOAA
Plateau Rosa	Italy	PRS	RSE
Point Arena (CA)	United States of America	PTA	NOAA
Puy de Dôme	France	PUY	LSCE
Ragged Point	Barbados	RPB	NOAA
Ridge Hill	United Kingdom of Great Britain and Northern Ireland	RGL	UNIVBRIS
Ryori	Japan	RYO	JMA
Sable Island	Canada	WSA	ECCC
Samoa (Cape Matatula)	United States of America	SMO	NOAA
Sand Island	United States of America	MID	NOAA
Sary Taukum	Kazakhstan	KZD	NOAA
Schauinsland	Germany	SSL	UBAG
Sede Boker	Israel	WIS	NOAA
Serreta (Terceira)	Portugal	AZR	NOAA
Shemya Island	United States of America	SHM	NOAA
SONNBLICK Observatory	Austria	SNB	UBAA
South China Sea	United States of America	SCS	NOAA
South Pole	United States of America	SPO	NOAA
Southern Great Plains E13 (OK)	United States of America	SGP	NOAA
St. Croix	United States of America	AVI	NOAA
St. David's Head	United Kingdom of Great Britain and Northern Ireland	BME	NOAA
Storhofdi	Iceland	ICE	NOAA
Summit	Denmark	SUM	NOAA
Syowa	Japan	SYO	NOAA
Tacolneston Tall Tower	United Kingdom of Great Britain and Northern Ireland	TAC	UNIVBRIS
Tae-ahn Peninsula	Republic of Korea	TAP	NOAA
Teriberka	Russian Federation	TER	MGO
Tiksi	Russian Federation	TIK	FMI
Tiksi	Russian Federation	TIK	MGO
Tiksi	Russian Federation	TIK	NOAA
Torfhaus	Germany	TOH	DWD
Trinidad Head (CA)	United States of America	THD	NOAA
Tudor Hill (Bermuda)	United Kingdom of Great Britain and Northern Ireland	BMW	NOAA
Ulaan Uul	Mongolia	UUM	NOAA
Ulleungdo	Republic of Korea	ULD	KMA
Ushuaia	Argentina	USH	NOAA
Wendover (UT)	United States of America	UTA	NOAA
Westerland	Germany	WES	UBAG
Yonagunijima	Japan	YON	JMA
Zeppelin Mountain (Ny Ålesund)	Norway	ZEP	NILU
Zeppelin Mountain (Ny Ålesund)	Norway	ZEP	NOAA
Zugspitze-Gipfel	Germany	ZUG	UBAG
Zugspitze-Schneefernerhaus	Germany	ZSF	UBAG

CH₄

Station Name	Country/Territory	GAW ID	Contributor
Alert	Canada	ALT	ECCC
Alert	Canada	ALT	NOAA
Amsterdam Island	France	AMS	LSCE
Amsterdam Island	France	AMS	NOAA
Anmyeon-do	Republic of Korea	AMY	KMA
Anmyeon-do	Republic of Korea	AMY	NOAA
Arembepe	Brazil	ABP	NOAA
Arrival Heights	New Zealand	ARH	NIWA
Ascension Island	United Kingdom of Great Britain and Northern Ireland	ASC	NOAA
Assekrem	Algeria	ASK	NOAA
Baltic Sea	Poland	BAL	NOAA
Baring Head	New Zealand	BHD	NIWA
Baring Head	New Zealand	BHD	NOAA
Barrow (AK)	United States of America	BRW	NOAA
Begur	Spain	BGU	LSCE
Behchoko	Canada	BCK	ECCC
Bilsdale	United Kingdom of Great Britain and Northern Ireland	BSD	UNIVBRIS
Bratt's Lake	Canada	BRA	ECCC
Cambridge Bay	Canada	CBY	ECCC
Candle Lake	Canada	CDL	ECCC
Cape Ferguson	Australia	CFA	CSIRO
Cape Kumukahi (HI)	United States of America	KUM	NOAA
Cape Meares (OR)	United States of America	CMO	NOAA
Cape Ochiishi	Japan	COI	NIES
Cape Point	South Africa	CPT	NOAA
Cape Point	South Africa	CPT	SAWS
Cape Rama	India	CRI	CSIRO
Cape Verde Atmospheric Observatory	Cabo Verde	CVO	UoE
Cape Verde Atmospheric Observatory	Cabo Verde	CVO	UYRK
Capo Granitola	Italy	CGR	ISAC
Casey	Australia	CYA	CSIRO
Chapais	Canada	CPS	ECCC
Chibougamau	Canada	CHM	ECCC
Cholpon-Ata	Kyrgyzstan	CPA	Kyrgyzhydromet
Christmas Island	Kiribati	CHR	NOAA
Churchill	Canada	CHL	ECCC
Cold Bay (AK)	United States of America	CBA	NOAA
Constanta (Black Sea)	Romania	BSC	NOAA
Crozet	France	CRZ	NOAA
Deuselbach	Germany	DEU	UBAG
Drake Passage	United States of America	DRP	NOAA
Dwejra Point	Malta	GOZ	NOAA
East Trout Lake	Canada	ETL	ECCC
Easter Island	Chile	EIC	NOAA
Egbert	Canada	EGB	ECCC
El Tololo	Chile	TLL	DMC
Estevan Point	Canada	ESP	CSIRO
Estevan Point	Canada	ESP	ECCC
Esther	Canada	EST	ECCC
Fraserdale	Canada	FSD	ECCC
Gartow	Germany	GAT	DWD
Gobabeb	Namibia	NMB	NOAA
Gosan	Republic of Korea	GSN	GERC
Gosan	Republic of Korea	GSN	KMA
Grifton - Georgia Station (NC)	United States of America	ITN	NOAA
Guam (Mariana Island)	United States of America	GMI	NOAA
Halley	United Kingdom of Great Britain and Northern Ireland	HBA	NOAA
Hateruma Island	Japan	HAT	NIES
Heathfield	United Kingdom of Great Britain and Northern Ireland	HFD	NPL
Hegyhátsál háttérszennyettség-mérő állomás	Hungary	HUN	NOAA
Helgoland	Germany	HEL	DWD
Hohenpeissenberg	Germany	HPB	NOAA
Inuvik	Canada	INU	ECCC
Izaña (Tenerife)	Spain	IZO	AEMET
Izaña (Tenerife)	Spain	IZO	NOAA
Jungfraujoch	Switzerland	JFJ	Empa
Jülich	Germany	JUE	DWD
Karlsruhe	Germany	KIT	DWD
Kennaook / Cape Grim	Australia	CGO	AGAGE
Kennaook / Cape Grim	Australia	CGO	NOAA
Key Biscane (FL)	United States of America	KEY	NOAA
Lac La Biche (Alberta)	Canada	LLB	ECCC
Lampedusa	Italy	LMP	ENEA
Lampedusa	Italy	LMP	NOAA
Lauder	New Zealand	LAU	NIWA
Lerwick	United Kingdom of Great Britain and Northern Ireland	SIS	CSIRO
Lindenberg	Germany	LIN	DWD
Lulin	Taiwan, Province of China	LLN	NOAA
Mace Head	Ireland	MHD	AGAGE
Mace Head	Ireland	MHD	NOAA
Macquarie Island	Australia	MQA	CSIRO
Madonie - Piano Battaglia	Italy	MDN	ENEA
Mahé	Seychelles	SEY	NOAA
Mauna Loa (HI)	United States of America	MLO	NOAA
Mawson	Australia	MAA	CSIRO
Mex High Altitude Global Climate Observation Center	Mexico	MEX	NOAA
Minamitorishima	Japan	MNM	JMA
Monte Cimone	Italy	CMN	IAFMS
Monte Cimone	Italy	CMN	UNIURB
Moody (TX)	United States of America	WKT	NOAA
Mould Bay	Canada	MBC	NOAA
Mt. Kenya	Kenya	MKN	KMD
Mt. Kenya	Kenya	MKN	NOAA
Mt. Waliguan	China	WLG	NOAA
Natal	Brazil	NAT	NOAA
Neuglobsow	Germany	NGL	UBAG
Niwot Ridge - T-van (CO)	United States of America	NWR	NOAA
Ocean Station M	Norway	STM	NOAA
Ochsenkopf	Germany	OXK	DWD
Ochsenkopf	Germany	OXK	NOAA
Olympic Peninsula (WA)	United States of America	OPW	NOAA
Pacific Ocean	United States of America	POC	NOAA
Pallas	Finland	PAL	FMI
Pallas	Finland	PAL	NOAA
Palmer Station	United States of America	PSA	NOAA
Pha Din	Viet Nam	PDI	VNMHA
Plateau Assy	Kazakhstan	KZM	NOAA
Plateau Rosa	Italy	PRS	RSE
Point Arena (CA)	United States of America	PTA	NOAA
Puy de Dôme	France	PUY	LSCE
Ragged Point	Barbados	RPB	AGAGE
Ragged Point	Barbados	RPB	NOAA
Ridge Hill	United Kingdom of Great Britain and Northern Ireland	RGL	UNIVBRIS
Ryori	Japan	RYO	JMA
Sable Island	Canada	WSA	ECCC
Samoa (Cape Matatula)	United States of America	SMO	AGAGE
Samoa (Cape Matatula)	United States of America	SMO	NOAA
Sand Island	United States of America	MID	NOAA
Sary Taukum	Kazakhstan	KZD	NOAA
Schauinsland	Germany	SSL	UBAG
Sede Boker	Israel	WIS	NOAA
Serreta (Terceira)	Portugal	AZR	NOAA
Shangdianzi	China	SDZ	NOAA
Shemya Island	United States of America	SHM	NOAA
SONNBLICK Observatory	Austria	SNB	UBAA
South China Sea	United States of America	SCS	NOAA
South Pole	United States of America	SPO	NOAA
Southern Great Plains E13 (OK)	United States of America	SGP	NOAA
St. Croix	United States of America	AVI	NOAA
St. David's Head	United Kingdom of Great Britain and Northern Ireland	BME	NOAA
Steinkimmen	Germany	STE	DWD
Storhofdi	Iceland	ICE	NOAA
Summit	Denmark	SUM	NOAA
Syowa	Japan	SYO	NOAA
Syowa	Japan	SYO	TU
Tacolneston Tall Tower	United Kingdom of Great Britain and Northern Ireland	TAC	UNIVBRIS
Tae-ahn Peninsula	Republic of Korea	TAP	NOAA
Tateno (Tsukuba)	Japan	TKB	MRI
Teriberka	Russian Federation	TER	MGO
Tiksi	Russian Federation	TIK	FMI
Tiksi	Russian Federation	TIK	MGO
Tiksi	Russian Federation	TIK	NOAA
Torfhaus	Germany	TOH	DWD
Trinidad Head (CA)	United States of America	THD	AGAGE
Tudor Hill (Bermuda)	United Kingdom of Great Britain and Northern Ireland	BMW	NOAA
Ulaan Uul	Mongolia	UUM	NOAA
Ulleungdo	Republic of Korea	ULD	KMA
Ushuaia	Argentina	USH	NOAA
Wendover (UT)	United States of America	UTA	NOAA
Westerland	Germany	WES	UBAG
Yonagunijima	Japan	YON	JMA
Zeppelin Mountain (Ny Ålesund)	Norway	ZEP	NILU
Zeppelin Mountain (Ny Ålesund)	Norway	ZEP	NOAA
Zingst	Germany	ZGT	UBAG
Zugspitze-Gipfel	Germany	ZUG	UBAG
Zugspitze-Schneefernerhaus	Germany	ZSF	UBAG

N₂O

Station Name	Country/Territory	GAW ID	Contributor
Adrigole	Ireland	ADR	AGAGE
Alert	Canada	ALT	CSIRO
Alert	Canada	ALT	NOAA
Anmyeon-do	Republic of Korea	AMY	KMA
Anmyeon-do	Republic of Korea	AMY	NOAA
Arembepe	Brazil	ABP	NOAA
Arrival Heights	New Zealand	ARH	NIWA
Ascension Island	United Kingdom of Great Britain and Northern Ireland	ASC	NOAA
Assekrem	Algeria	ASK	NOAA
Baltic Sea	Poland	BAL	NOAA
Baring Head	New Zealand	BHD	NIWA
Baring Head	New Zealand	BHD	NOAA
Barrow (AK)	United States of America	BRW	NOAA
Bilsdale	United Kingdom of Great Britain and Northern Ireland	BSD	UNIVBRIS
Bukit Kototabang	Indonesia	BKT	NOAA
Cape Ferguson	Australia	CFA	CSIRO
Cape Kumukahi (HI)	United States of America	KUM	NOAA
Cape Meares (OR)	United States of America	CMO	AGAGE
Cape Ochiishi	Japan	COI	NIES
Cape Point	South Africa	CPT	NOAA
Cape Point	South Africa	CPT	SAWS
Cape Rama	India	CRI	CSIRO
Cape Verde Atmospheric Observatory	Cabo Verde	CVO	UoE
Casey	Australia	CYA	CSIRO
Christmas Island	Kiribati	CHR	NOAA
Cold Bay (AK)	United States of America	CBA	NOAA
Constanta (Black Sea)	Romania	BSC	NOAA
Crozet	France	CRZ	NOAA
Drake Passage	United States of America	DRP	NOAA
Easter Island	Chile	EIC	NOAA
Estevan Point	Canada	ESP	CSIRO
Gartow	Germany	GAT	DWD
Gobabeb	Namibia	NMB	NOAA
Gosan	Republic of Korea	GSN	KMA
Grifton - Georgia Station (NC)	United States of America	ITN	NOAA
Guam (Mariana Island)	United States of America	GMI	NOAA
Halley	United Kingdom of Great Britain and Northern Ireland	HBA	NOAA
Harvard Forest (MA)	United States of America	HFM	NOAA
Hateruma Island	Japan	HAT	NIES
Heathfield	United Kingdom of Great Britain and Northern Ireland	HFD	NPL
Hegyhátsál háttérszennyettség-mérő állomás	Hungary	HUN	NOAA
Helgoland	Germany	HEL	DWD
Hohenpeissenberg	Germany	HPB	DWD
Hohenpeissenberg	Germany	HPB	NOAA
Izaña (Tenerife)	Spain	IZO	AEMET
Izaña (Tenerife)	Spain	IZO	NOAA
Jungfraujoch	Switzerland	JFJ	Empa
Jülich	Germany	JUE	DWD
Karlsruhe	Germany	KIT	DWD
Kennaook / Cape Grim	Australia	CGO	AGAGE
Kennaook / Cape Grim	Australia	CGO	NOAA
Key Biscane (FL)	United States of America	KEY	NOAA
Lac La Biche (Alberta)	Canada	LLB	NOAA
Lampedusa	Italy	LMP	NOAA
Lerwick	United Kingdom of Great Britain and Northern Ireland	SIS	CSIRO
Lindenberg	Germany	LIN	DWD
Lulin	Taiwan, Province of China	LLN	NOAA
Mace Head	Ireland	MHD	AGAGE
Mace Head	Ireland	MHD	NOAA
Macquarie Island	Australia	MQA	CSIRO
Mahé	Seychelles	SEY	NOAA
Mauna Loa (HI)	United States of America	MLO	CSIRO
Mauna Loa (HI)	United States of America	MLO	NOAA
Mawson	Australia	MAA	CSIRO
Mex High Altitude Global Climate Observation Center	Mexico	MEX	NOAA
Monte Cimone	Italy	CMN	UNIURB
Moody (TX)	United States of America	WKT	NOAA
Mt. Kenya	Kenya	MKN	NOAA
Mt. Waliguan	China	WLG	NOAA
Natal	Brazil	NAT	NOAA
Niwot Ridge - T-van (CO)	United States of America	NWR	NOAA
Ocean Station M	Norway	STM	NOAA
Ochsenkopf	Germany	OXK	DWD
Ochsenkopf	Germany	OXK	NOAA
Pacific Ocean	United States of America	POC	NOAA
Pallas	Finland	PAL	NOAA
Palmer Station	United States of America	PSA	NOAA
Park Falls (WI)	United States of America	LEF	NOAA
Plateau Assy	Kazakhstan	KZM	NOAA
Point Arena (CA)	United States of America	PTA	NOAA
Ragged Point	Barbados	RPB	AGAGE
Ragged Point	Barbados	RPB	NOAA
Ridge Hill	United Kingdom of Great Britain and Northern Ireland	RGL	UNIVBRIS
Ryori	Japan	RYO	JMA
Samoa (Cape Matatula)	United States of America	SMO	AGAGE
Samoa (Cape Matatula)	United States of America	SMO	NOAA
Sand Island	United States of America	MID	NOAA
Sary Taukum	Kazakhstan	KZD	NOAA
Schauinsland	Germany	SSL	UBAG
Sede Boker	Israel	WIS	NOAA
Serreta (Terceira)	Portugal	AZR	NOAA
Shangdianzi	China	SDZ	NOAA
Shemya Island	United States of America	SHM	NOAA
South Pole	United States of America	SPO	NOAA
Southern Great Plains E13 (OK)	United States of America	SGP	NOAA
St. David's Head	United Kingdom of Great Britain and Northern Ireland	BME	NOAA
Steinkimmen	Germany	STE	DWD
Storhofdi	Iceland	ICE	NOAA
Summit	Denmark	SUM	NOAA
Syowa	Japan	SYO	NOAA
Tacolneston Tall Tower	United Kingdom of Great Britain and Northern Ireland	TAC	UNIVBRIS
Tae-ahn Peninsula	Republic of Korea	TAP	NOAA
Tiksi	Russian Federation	TIK	NOAA
Torfhaus	Germany	TOH	DWD
Trinidad Head (CA)	United States of America	THD	AGAGE
Tudor Hill (Bermuda)	United Kingdom of Great Britain and Northern Ireland	BMW	NOAA
Ulaan Uul	Mongolia	UUM	NOAA
Ulleungdo	Republic of Korea	ULD	KMA
Ushuaia	Argentina	USH	NOAA
Wendover (UT)	United States of America	UTA	NOAA
Zeppelin Mountain (Ny Ålesund)	Norway	ZEP	NOAA
Zugspitze-Schneefernerhaus	Germany	ZSF	UBAG

SF₆

Station Name	Country/Territory	GAW ID	Contributor
Alert	Canada	ALT	NOAA
Anmyeon-do	Republic of Korea	AMY	NOAA
Arembepe	Brazil	ABP	NOAA
Ascension Island	United Kingdom of Great Britain and Northern Ireland	ASC	NOAA
Assekrem	Algeria	ASK	NOAA
Baltic Sea	Poland	BAL	NOAA
Baring Head	New Zealand	BHD	NOAA
Barrow (AK)	United States of America	BRW	NOAA
Bilsdale	United Kingdom of Great Britain and Northern Ireland	BSD	UNIVBRIS
Bukit Kototabang	Indonesia	BKT	NOAA
Cape Kumukahi (HI)	United States of America	KUM	NOAA
Cape Point	South Africa	CPT	NOAA
Christmas Island	Kiribati	CHR	NOAA
Cold Bay (AK)	United States of America	CBA	NOAA
Constanta (Black Sea)	Romania	BSC	NOAA
Crozet	France	CRZ	NOAA
Drake Passage	United States of America	DRP	NOAA
Easter Island	Chile	EIC	NOAA
Gobabeb	Namibia	NMB	NOAA
Gosan	Republic of Korea	GSN	AGAGE
Gosan	Republic of Korea	GSN	KMA
Grifton - Georgia Station (NC)	United States of America	ITN	NOAA
Guam (Mariana Island)	United States of America	GMI	NOAA
Halley	United Kingdom of Great Britain and Northern Ireland	HBA	NOAA
Heathfield	United Kingdom of Great Britain and Northern Ireland	HFD	NPL
Hegyhátsál háttérszennyettség-mérő állomás	Hungary	HUN	NOAA
Hohenpeissenberg	Germany	HPB	NOAA
Izaña (Tenerife)	Spain	IZO	AEMET
Izaña (Tenerife)	Spain	IZO	NOAA
Jungfraujoch	Switzerland	JFJ	AGAGE
Jungfraujoch	Switzerland	JFJ	Empa
Kennaook / Cape Grim	Australia	CGO	AGAGE
Kennaook / Cape Grim	Australia	CGO	NOAA
Key Biscane (FL)	United States of America	KEY	NOAA
Lac La Biche (Alberta)	Canada	LLB	NOAA
Lampedusa	Italy	LMP	NOAA
Lulin	Taiwan, Province of China	LLN	NOAA
Mace Head	Ireland	MHD	AGAGE
Mace Head	Ireland	MHD	NOAA
Mahé	Seychelles	SEY	NOAA
Mauna Loa (HI)	United States of America	MLO	NOAA
Mex High Altitude Global Climate Observation Center	Mexico	MEX	NOAA
Monte Cimone	Italy	CMN	AGAGE
Monte Cimone	Italy	CMN	UNIURB
Moody (TX)	United States of America	WKT	NOAA
Mt. Kenya	Kenya	MKN	NOAA
Mt. Waliguan	China	WLG	NOAA
Natal	Brazil	NAT	NOAA
Niwot Ridge - T-van (CO)	United States of America	NWR	NOAA
Ocean Station M	Norway	STM	NOAA
Ochsenkopf	Germany	OXK	NOAA
Pacific Ocean	United States of America	POC	NOAA
Pallas	Finland	PAL	NOAA
Palmer Station	United States of America	PSA	NOAA
Park Falls (WI)	United States of America	LEF	NOAA
Plateau Assy	Kazakhstan	KZM	NOAA
Point Arena (CA)	United States of America	PTA	NOAA
Ragged Point	Barbados	RPB	AGAGE
Ragged Point	Barbados	RPB	NOAA
Ridge Hill	United Kingdom of Great Britain and Northern Ireland	RGL	UNIVBRIS
Samoa (Cape Matatula)	United States of America	SMO	AGAGE
Samoa (Cape Matatula)	United States of America	SMO	NOAA
Sand Island	United States of America	MID	NOAA
Sary Taukum	Kazakhstan	KZD	NOAA
Schauinsland	Germany	SSL	UBAG
Sede Boker	Israel	WIS	NOAA
Serreta (Terceira)	Portugal	AZR	NOAA
Shangdianzi	China	SDZ	NOAA
Shemya Island	United States of America	SHM	NOAA
South Pole	United States of America	SPO	NOAA
Southern Great Plains E13 (OK)	United States of America	SGP	NOAA
St. David's Head	United Kingdom of Great Britain and Northern Ireland	BME	NOAA
Storhofdi	Iceland	ICE	NOAA
Summit	Denmark	SUM	NOAA
Syowa	Japan	SYO	NOAA
Tacolneston Tall Tower	United Kingdom of Great Britain and Northern Ireland	TAC	AGAGE
Tacolneston Tall Tower	United Kingdom of Great Britain and Northern Ireland	TAC	UNIVBRIS
Tae-ahn Peninsula	Republic of Korea	TAP	NOAA
Taunus Observatory	Germany	TOB	AGAGE
Tiksi	Russian Federation	TIK	NOAA
Trinidad Head (CA)	United States of America	THD	AGAGE
Trinidad Head (CA)	United States of America	THD	NOAA
Tudor Hill (Bermuda)	United Kingdom of Great Britain and Northern Ireland	BMW	NOAA
Ulaan Uul	Mongolia	UUM	NOAA
Ulleungdo	Republic of Korea	ULD	KMA
Ushuaia	Argentina	USH	NOAA
Wendover (UT)	United States of America	UTA	NOAA
Zeppelin Mountain (Ny Ålesund)	Norway	ZEP	AGAGE
Zeppelin Mountain (Ny Ålesund)	Norway	ZEP	NOAA
Zugspitze-Schneefernerhaus	Germany	ZSF	UBAG

Halocarbons

Station Name	Country/Territory	GAW ID	Contributor
Adrigole	Ireland	ADR	AGAGE
Alert	Canada	ALT	NOAA
Anmyeon-do	Republic of Korea	AMY	KMA
Barrow (AK)	United States of America	BRW	NOAA
Cape Kumukahi (HI)	United States of America	KUM	NOAA
Cape Meares (OR)	United States of America	CMO	AGAGE
Gosan	Republic of Korea	GSN	AGAGE
Gosan	Republic of Korea	GSN	METRI
Grifton - Georgia Station (NC)	United States of America	ITN	NOAA
Harvard Forest (MA)	United States of America	HFM	NOAA
Jungfraujoch	Switzerland	JFJ	AGAGE
Kennaook / Cape Grim	Australia	CGO	AGAGE
Kennaook / Cape Grim	Australia	CGO	NOAA
Lampedusa	Italy	LMP	ENEA
Mace Head	Ireland	MHD	AGAGE
Mace Head	Ireland	MHD	NOAA
Mauna Loa (HI)	United States of America	MLO	NOAA
Minamitorishima	Japan	MNM	JMA
Monte Cimone	Italy	CMN	AGAGE
Niwot Ridge - T-van (CO)	United States of America	NWR	NOAA
Palmer Station	United States of America	PSA	NOAA
Park Falls (WI)	United States of America	LEF	NOAA
Ragged Point	Barbados	RPB	AGAGE
Ryori	Japan	RYO	JMA
Samoa (Cape Matatula)	United States of America	SMO	AGAGE
Samoa (Cape Matatula)	United States of America	SMO	NOAA
South Pole	United States of America	SPO	NOAA
Summit	Denmark	SUM	NOAA
Tacolneston Tall Tower	United Kingdom of Great Britain and Northern Ireland	TAC	AGAGE
Taunus Observatory	Germany	TOB	AGAGE
Trinidad Head (CA)	United States of America	THD	AGAGE
Trinidad Head (CA)	United States of America	THD	NOAA
Ushuaia	Argentina	USH	NOAA
Zeppelin Mountain (Ny Ålesund)	Norway	ZEP	AGAGE
Zeppelin Mountain (Ny Ålesund)	Norway	ZEP	NILU