Performance of Antarctic SYNOP messages

Surface stations

This chart shows the status of SYNOP messages for the main hours on the GTS during 2023, with green representing good performance, light green representing less than 90% of expected messages (acceptable, but not adequate for CLIMAT), yellow less than 80% and amber less than 50%.

If less that 30% are found then the number of days in the month that observations were recieved is displayed which may have been on non main synoptic hours which occurs mainly for AWS transmitting via Argos.

When the number of days is displayed a D is shown before the number, greater than 25 days is displayed in green, light green for between 20 and 25 days, yellow for between 10 and 20 days, amber for between 5 and 10 days and red for less than 5 days.

WMO no	Station name	Comments	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
61997	Isle Crozet	GSN station	0	0	0	0	0	0	0	0	0	0	0	0
61998	Isle Kerguelen	GSN station	100	100	98	99	99	100	100	100	100	100	99	99
68906	Gough Island	GSN station	84	88	85	86	86	88	87	83	85	88	88	85
68992	Bouvetoya	GSN station	0	0	0	0	0	0	0	0	0	0	0	0
68994	Marion Island	GSN station	94	91	91	93	94	87	87	93	82	79	88	90
88870	Mount Byron		99	99	98	96	100	99	96	75	99	99	D 2	74
88878	Pebble Island		99	99	98	95	100	99	97	99	99	99	99	99
88881	Mount Kent		99	99	98	99	100	99	97	91	0	0	0	0
88883	Weddell Island		99	99	95	95	100	96	97	99	99	99	98	99
88889	Mount Pleasant Airport	GSN station	99	99	98	99	100	98	96	99	99	99	99	99
88892	Sapper Hill		0	0	0	0	0	0	0	0	0	0	0	0
88894	Mount Alice		99	100	98	99	100	99	97	99	99	99	99	99
88897	Sea Lion Island		99	99	97	95	99	98	97	98	99	99	99	99
88900	Bird Island		75	85	75	85	84	74	81	77	80	79	68	79
88903	Grytviken	GSN station	76	79	74	51	91	95	88	76	100	96	88	70
88986	South Thule Island		0	0	0	0	0	0	0	0	0	0	0	0
88963	Esperanza	GSN station	100	99	98	100	100	99	99	99	99	100	98	99
88968	Orcadas	GSN station	95	87	95	88	94	85	87	81	93	100	99	99
89002	Neumayer	GSN station	100	100	98	100	100	100	100	100	100	100	99	99
89003	Halvfarryggen EP11		70	59	66	88	83	85	75	80	82	80	76	86
89004	SANAE	GSN station	92	93	92	96	99	79	93	98	89	96	93	92
89009	Amundsen-Scott	GSN station	95	97	93	96	98	98	99	98	96	92	94	98
89011	Soerasen		62	72	53	84	84	85	85	83	81	46	85	85
89013	Baldrick AWS		66	66	68	70	77	74	70	67	52	D 28	D 2	D 2
89014	Nordenskiold		95	94	97	93	98	76	98	93	73	D 7	0	36
89022	Halley	GSN station	98	100	98	97	100	99	95	91	92	88	87	98
89034	Belgrano II		99	99	97	99	100	100	99	98	99	100	99	99
89047	Filchner		D 15	65	84	88	85	85	38	0	0	0	39	78
89049	AGO-2	Failed	0	0	0	0	0	0	0	0	0	0	0	0
89050	Bellingshausen	GSN station	99	100	97	99	100	97	100	98	93	99	94	98
89053	Jubany		99	99	96	97	100	99	99	100	100	100	99	99
89054	Dinamet		0	0	0	0	0	0	0	0	0	0	0	0
89055	Marambio	GSN station	98	100	98	96	100	100	99	100	100	98	98	98
89056	Frei	GSN station	100	100	97	99	100	100	98	99	95	96	99	99
89057	Arturo Prat		100	99	98	100	100	100	99	99	96	100	98	99
89058	Great Wall		D 1	0	0	0	62	94	99	D 8	60	97	94	D 10
89059	O'Higgins		100	100	97	100	98	99	98	99	95	98	92	92
89061	Palmer		100	100	96	99	97	98	95	98	100	87	96	95
89062	Rothera	GSN station	100	100	98	100	100	100	100	96	100	97	99	98
89063	Vernadsky	GSN station	100	100	96	100	100	100	100	99	100	98	82	97
89064	Juan Carlos		0	0	0	0	0	0	0	0	0	0	0	0
89065	Fossil Bluff	GSN station	82	80	82	77	67	77	71	79	77	84	74	86
89066	San Martin		95	86	83	80	87	86	89	93	95	100	99	99
89079	Criosfera 1		37	0	39	36	0	35	42	37	35	32	0	0
89087	Thiel Mountains		83	94	92	96	96	94	75	83	84	90	80	D 3
89108	Henry		91	94	89	87	70	99	95	95	99	81	81	52
89132	Russkaya		99	100	97	100	100	100	99	D 10	D 7	0	0	D 1
89251	King Sejong		99	95	91	87	92	93	92	94	91	97	90	89
89257	Limbert		99	94	93	97	100	98	95	94	95	89	85	95
89262	Larsen Ice Shelf	GSN station	80	79	85	60	70	D 5	D 13	41	84	62	31	71
89266	Butler Island	GSN station	97	94	94	93	95	95	96	95	93	89	85	94
89269	Bonaparte Point		0	0	0	0	0	0	0	0	0	0	0	0
89272	Sky Blu	GSN station	96	92	93	95	99	98	98	93	97	87	87	91
89314	Theresa		D 1	0	0	0	0	0	0	0	0	0	0	0
89324	Byrd Station	GSN station	88	91	83	84	66	99	95	95	99	80	81	50
89327	Mount Siple	GSN station	0	0	0	0	0	0	0	0	0	0	0	0
89329	Harry	GSN station	90	90	83	88	70	99	95	95	99	80	81	46
89332	Elizabeth		88	97	91	96	69	99	95	95	100	81	81	53
89345	Siple Dome	GSN station	91	87	93	89	66	99	95	95	99	81	81	53
89376	Gill	GSN station	93	94	92	94	70	99	95	95	98	82	79	49
89377	Lettau	GSN station	97	98	95	93	70	99	95	95	99	81	81	52
89504	Troll		0	0	0	0	0	0	0	0	0	0	0	0
89507	Kohnen EP9		0	0	0	0	0	0	0	0	0	0	0	0
89512	Novolazarevskaya	GSN station	100	100	97	100	100	100	99	99	99	100	96	99
89514	Maitri		91	92	93	95	95	88	83	95	94	98	93	87
89528	AGO-3	Failed	0	0	0	0	0	0	0	0	0	0	0	0
89532	Syowa	GSN station	100	99	99	100	100	100	100	100	100	100	99	99
89536	Plateau		0	0	0	0	0	0	0	0	0	0	0	0
89542	Molodeznaja		99	100	97	100	100	99	96	98	99	97	90	99
89558	Pole of Inaccessibility		0	0	0	0	0	0	0	0	0	0	0	0
89564	Mawson	GSN station	99	100	98	100	100	100	99	100	98	100	99	99
89570	Davis (Whoop Whoop)		0	0	0	0	0	0	0	0	0	89	98	99
89571	Davis	GSN station	98	100	98	100	100	100	99	100	97	100	99	99
89573	Zhongshan	GSN station	0	0	0	0	63	100	97	0	65	100	99	0
89574	Progress	GSN station	98	100	97	100	99	99	99	100	100	99	97	99
89575	Druzhnaya 4		0	77	97	100	72	0	0	0	0	0	0	0
89577	Dome A	GSN station	87	87	62	72	78	84	86	85	91	92	91	90
89578	Eagle		94	91	91	94	90	93	89	85	91	94	91	96
89592	Mirnyj	GSN station	100	98	97	99	99	100	99	100	99	100	95	94
89598	AGO-4		97	96	97	97	70	98	95	95	93	81	81	53
89601	Oazic Bangera		0	0	0	0	0	0	0	0	0	0	0	0
89606	Vostok	GSN station	99	99	97	100	99	100	98	100	99	98	96	99
89610	Cape Poinsett		0	0	0	0	0	0	0	0	0	0	0	0
89611	Casey	GSN station	99	100	98	100	100	100	100	100	97	100	99	99
89614	Wilkins Runway West		0	0	D 2	58	33	0	D 12	32	70	68	63	59
89615	Wilkins Runway East		94	92	66	0	0	0	0	0	0	38	83	94
89625	Concordia	GSN station	98	98	91	94	97	97	97	99	92	96	90	95
89628	AGO-1	Failed	0	0	0	0	0	0	0	0	0	0	0	0
89642	Dumont d’Urville	GSN station	100	99	98	100	98	100	100	100	100	100	99	99
89643	Port Martin		0	0	0	0	0	0	0	0	0	0	0	0
89646	Sitry Point		0	0	0	0	0	0	0	0	0	0	0	0
89648	Mid Point		97	93	58	0	0	0	0	0	0	61	96	97
89657	Leningradskaya		34	0	0	0	0	0	0	0	0	0	0	0
89659	Priestley (Nevee)		93	91	94	95	92	31	0	0	0	71	95	97
89661	Cape Phillips		94	93	91	97	95	100	90	83	95	97	95	97
89662	Mario Zuchelli Station	GSN station	97	92	91	95	94	90	91	83	97	96	95	95
89664	McMurdo	GSN station	100	100	98	99	99	100	100	99	100	100	99	67
89666	Cape Ross		96	95	94	98	96	98	95	94	97	96	98	98
89667	Pegasus North		0	0	0	0	0	0	0	D 2	D 1	0	0	0
89734	Dome Fuji		83	87	84	88	66	99	95	95	98	80	81	49
89744	Relay Station	GSN station	88	90	91	90	69	99	95	95	98	81	81	48
89767	G3 (Amery Ice Shelf AWS)		84	88	90	91	91	85	92	93	97	90	90	95
89768	Minna Bluff		68	100	98	100	71	100	96	97	99	87	99	55
89769	Linda		93	100	98	100	71	100	96	96	99	87	99	55
89776	Bharati		95	96	96	98	100	99	97	100	98	99	94	89
89799	Nico		91	91	90	93	69	99	95	95	98	81	81	53
89807	Snyder Rocks		33	76	79	73	D 1	0	0	D 2	D 6	0	0	0
89809	Casey Skiway South		97	51	0	0	0	0	0	0	0	0	95	99
89811	Law Dome Summit		72	68	72	39	D 8	0	0	0	D 9	71	86	87
89815	Haupt Nunatak		D 1	0	0	0	0	0	0	0	0	0	0	0
89828	Dome C II	GSN station	100	100	99	100	100	100	100	100	100	100	99	98
89832	D-10		83	93	85	91	69	99	94	D 3	D 2	0	0	D 1
89834	D-47		83	88	80	87	67	99	95	95	94	79	80	50
89836	D-85	No Synops	0	0	0	0	0	0	0	0	0	0	0	0
89859	Jang Bogo		94	96	95	95	95	96	99	95	96	95	95	96
89864	Manuela		92	99	94	98	70	99	95	95	98	81	81	54
89865	Whitlock	GSN station	91	96	92	92	68	99	95	95	98	81	81	43
89866	Marble Point	GSN station	100	100	99	100	100	100	100	100	100	100	99	99
89868	Schwerdtfeger		95	99	94	95	68	99	95	94	99	81	80	51
89869	Marilyn	GSN station	90	98	95	96	70	99	95	95	99	81	80	48
89872	Ferrell	GSN station	93	99	95	94	69	99	95	95	98	81	79	50
89873	Elaine		95	97	90	96	70	99	95	95	99	81	81	53
89879	Possession Island	GSN station	100	100	99	100	76	56	32	D 3	86	91	99	99
93929	Enderby Island AWS		99	99	98	100	100	97	100	100	100	100	99	99
93947	Campbell Island AWS	GSN station	99	99	98	100	100	97	100	100	100	100	99	98
94997	Heard Island (The Spit)		0	0	0	0	0	0	0	0	0	0	0	0
94998	Macquarie Island	GSN station	98	100	98	99	100	100	99	100	97	100	99	99
95997	Heard Island (Atlas Cove)	Failed	0	0	0	0	0	0	0	0	0	0	0	0
AAALE	Cape King		0	0	0	0	0	0	0	0	0	0	0	0
AACBD	Cape Bird		93	100	97	100	71	100	96	97	99	87	99	55
AABRI	Brianna		0	0	0	0	0	0	0	0	0	0	0	0
AADIS	Dismal Island	Off air	0	D 1	0	0	D 1	D 1	0	0	D 1	0	0	D 1
AACDN	Cape Denison	Off air	0	0	0	0	0	0	0	0	0	0	0	0
AAEMM	Emma		88	86	86	92	68	99	95	95	98	81	80	41
AAEML	Emilia		97	95	94	95	70	99	95	95	97	81	80	D 4
AAERN	Erin		91	93	94	96	68	99	95	95	98	81	81	52
AAKMS	Kominko-Slade		0	0	0	0	0	0	D 1	0	0	0	0	0
AALR2	Laurie II		95	99	97	97	69	99	93	D 3	D 7	81	81	52
AALOL	Tourmaline Plateau		0	0	0	0	0	0	0	0	0	0	0	0
AAMIZ	Mizuho		91	94	55	0	0	0	0	0	0	D 1	0	37
AARIT	Enigma Lake		0	0	0	0	0	0	0	0	0	0	0	0
AASOF	Sophia-B		0	0	0	0	0	0	0	0	0	0	0	0
AAUNI	Union Glacier		0	0	0	0	0	0	0	0	0	0	0	0
AAVIT	Vito		D 31	D 28	D 31	D 30	D 24	D 30	D 31	D 31	D 30	D 28	D 30	D 28
AAWFD	Willie Field		94	100	98	100	71	100	96	35	0	0	0	0
AAWDB	Windless Bight		94	99	97	100	71	100	96	97	98	87	99	55
AAZOR	Priestley Glacier	No Synop	0	0	0	0	0	0	0	0	0	0	0	0