Performance of the Antarctic Observing Network (AntON) SYNOP

Surface stations

This chart shows the status of SYNOP messages for the main hours on the GTS during 2021, 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	99	100	100	100	100	100	100	100	97	100	99
68906	Gough Island	GSN station	80	83	87	88	85	81	86	83	90	87	80	87
68992	Bouvetoya	GSN station	0	0	0	0	0	0	0	0	0	0	0	0
68994	Marion Island	GSN station	99	100	100	100	98	99	99	100	99	99	98	94
88870	Mount Byron		96	96	98	97	95	98	99	97	100	96	96	36
88878	Pebble Island		95	98	98	97	62	0	74	96	99	97	97	98
88881	Mount Kent		96	98	83	0	0	98	99	96	99	97	93	98
88883	Weddell Island		96	98	98	97	87	94	84	95	99	96	97	98
88889	Mount Pleasant Airport	GSN station	96	98	98	97	95	98	99	96	97	97	97	98
88892	Sapper Hill		0	0	0	0	0	0	0	0	0	0	0	0
88894	Mount Alice		96	100	96	97	95	98	99	96	99	96	98	98
88897	Sea Lion Island		96	98	98	97	86	90	96	95	98	95	97	98
88900	Bird Island		98	99	96	99	99	100	97	86	100	95	91	87
88903	Grytviken	GSN station	100	98	67	69	91	95	86	98	95	93	97	96
88986	South Thule Island		0	0	0	0	0	0	0	0	0	0	0	0
88963	Esperanza	GSN station	98	100	100	100	98	99	99	100	100	99	100	100
88968	Orcadas	GSN station	97	98	93	70	71	70	73	73	72	67	74	73
89002	Neumayer	GSN station	99	100	100	100	100	100	99	100	100	100	100	100
89003	Halvfarryggen EP11		66	85	93	93	76	94	87	76	72	75	91	75
89004	SANAE	GSN station	92	91	97	98	99	96	96	92	97	95	92	95
89009	Amundsen-Scott	GSN station	100	100	99	96	98	100	95	98	100	96	95	96
89011	Soerasen		66	89	98	97	79	99	88	58	74	86	95	87
89013	Baldrick AWS		59	76	68	80	70	73	70	75	66	70	71	68
89014	Nordenskiold		0	0	0	0	0	0	D 2	0	0	0	0	0
89022	Halley	GSN station	96	100	100	100	100	100	100	88	77	79	83	100
89034	Belgrano II		99	98	98	93	100	95	95	100	99	99	100	100
89047	Filchner		70	90	98	95	77	99	72	83	71	72	D 9	81
89049	AGO-2	Failed	0	0	0	0	0	0	0	0	0	0	0	0
89050	Bellingshausen	GSN station	99	100	100	100	99	99	99	100	100	100	100	100
89053	Jubany		98	98	98	100	98	99	100	100	98	99	100	91
89054	Dinamet		0	0	0	0	0	0	0	0	0	0	0	0
89055	Marambio	GSN station	98	100	97	97	97	96	97	93	100	99	92	95
89056	Frei	GSN station	100	100	100	99	98	92	99	100	100	100	98	98
89057	Arturo Prat		99	98	97	92	95	92	95	99	95	91	94	93
89058	Great Wall		50	91	99	50	51	82	75	69	70	73	64	66
89059	O'Higgins		94	95	98	94	95	90	97	97	100	99	92	91
89061	Palmer		99	99	100	99	100	99	96	95	100	99	99	99
89062	Rothera	GSN station	100	100	100	100	100	100	100	100	100	100	100	99
89063	Vernadsky	GSN station	99	98	96	98	100	97	100	99	100	100	100	100
89064	Juan Carlos		0	0	0	0	0	0	0	0	0	0	0	0
89065	Fossil Bluff	GSN station	87	84	91	85	75	70	75	75	87	79	88	77
89066	San Martin		100	100	100	99	100	100	100	100	99	100	100	80
89079	Criosfera 1		52	46	45	46	37	44	36	38	34	32	0	33
89087	Thiel Mountains		83	99	98	80	93	95	92	90	92	74	90	79
89108	Henry		D 30	D 28	D 31	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 18	D 19
89132	Russkaya		0	0	0	0	0	0	0	0	0	0	0	0
89251	King Sejong		93	94	95	97	94	95	93	91	99	92	93	97
89257	Limbert		100	98	96	94	95	94	95	96	95	89	96	85
89262	Larsen Ice Shelf	GSN station	95	95	94	90	86	D 13	D 11	65	71	92	59	87
89266	Butler Island	GSN station	98	100	99	93	95	94	97	92	99	87	95	88
89269	Bonaparte Point		0	0	0	0	0	0	0	0	0	0	0	0
89272	Sky Blu	GSN station	97	98	99	90	95	96	95	91	99	90	96	83
89314	Theresa		100	100	100	100	100	100	100	100	100	100	100	100
89324	Byrd Station	GSN station	D 30	D 28	D 30	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 27	D 29
89327	Mount Siple	GSN station	0	0	0	0	0	0	0	D 1	0	0	0	0
89329	Harry	GSN station	D 30	D 28	D 31	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 22	D 17
89332	Elizabeth		D 30	D 28	D 31	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 26	D 26
89345	Siple Dome	GSN station	D 30	D 28	D 31	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 11	D 12
89376	Gill	GSN station	D 30	D 28	D 31	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 18	D 20
89377	Lettau	GSN station	D 30	D 28	D 31	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 21	D 17
89504	Troll		0	0	0	0	0	0	D 1	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	99	100	98	99	100	100	100	99	100	100
89514	Maitri		91	90	87	84	95	88	83	68	82	66	35	D 11
89528	AGO-3	Failed	0	0	0	0	0	0	0	0	0	0	0	0
89532	Syowa	GSN station	99	100	100	100	100	100	100	100	100	100	100	100
89536	Plateau		0	0	0	0	0	0	0	0	0	0	0	0
89542	Molodeznaja		38	0	0	85	90	100	98	99	99	62	0	0
89558	Pole of Inaccessibility		0	0	0	0	0	0	0	0	0	0	0	0
89564	Mawson	GSN station	100	100	100	100	100	100	100	100	99	100	100	100
89570	Davis (Whoop Whoop)		0	0	0	0	0	0	0	0	0	0	0	0
89571	Davis	GSN station	100	100	100	100	100	100	99	100	100	100	100	100
89573	Zhongshan	GSN station	98	100	100	99	99	95	92	100	100	99	100	100
89574	Progress	GSN station	99	100	99	100	99	99	100	100	100	100	100	100
89575	Druzhnaya 4		99	99	100	100	90	0	0	0	0	0	0	0
89577	Dome A	GSN station	82	87	53	90	91	95	89	89	92	87	87	89
89578	Eagle		89	95	92	96	96	97	97	93	97	96	98	94
89592	Mirnyj	GSN station	98	99	100	100	95	98	100	99	99	100	100	99
89598	AGO-4		D 30	D 28	D 31	D 30	D 31	30	D 31	D 31	D 30	D 31	D 19	D 8
89601	Oazic Bangera		0	0	0	0	0	0	0	0	0	0	0	0
89606	Vostok	GSN station	100	96	99	99	99	98	100	100	99	99	99	99
89610	Cape Poinsett		0	0	0	0	0	0	0	0	0	0	0	0
89611	Casey	GSN station	100	96	100	99	100	100	100	100	100	100	100	100
89614	Wilkins Runway West		79	72	75	86	42	D 2	D 11	51	D 8	0	0	D 1
89615	Wilkins Runway East		0	0	0	0	0	0	0	0	0	D 5	86	83
89625	Concordia	GSN station	98	100	100	100	100	96	99	97	100	100	100	98
89628	AGO-1	Failed	0	0	0	0	0	0	0	0	0	0	0	0
89642	Dumont d’Urville	GSN station	99	99	100	100	79	100	100	100	100	100	100	98
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		0	0	D 1	0	D 1	D 2	D 15	D 11	D 8	86	98	95
89657	Leningradskaya		0	0	0	0	0	0	0	0	0	0	0	0
89659	Priestley (Nevee)		90	94	95	96	96	96	97	96	95	97	96	95
89661	Cape Phillips		88	94	93	97	95	99	97	84	98	98	96	96
89662	Mario Zuchelli Station	GSN station	89	96	97	95	97	97	97	97	98	95	95	97
89664	McMurdo	GSN station	96	100	87	100	97	99	96	100	99	100	100	100
89666	Cape Ross		91	95	94	94	97	98	100	97	98	98	98	99
89667	Pegasus North		0	D 2	0	0	0	0	0	D 1	0	0	0	D 1
89734	Dome Fuji		D 30	D 28	D 30	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 27	D 26
89744	Relay Station	GSN station	D 30	D 28	D 31	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 27	33
89767	G3 (Amery Ice Shelf AWS)		69	81	87	89	88	82	95	92	92	90	85	84
89768	Minna Bluff		0	0	0	0	0	0	0	0	0	0	0	0
89769	Linda		97	96	97	100	95	98	98	99	98	98	56	96
89776	Bharati		96	41	81	92	93	95	96	98	95	93	94	97
89799	Nico		D 30	D 28	D 31	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 16	D 9
89807	Snyder Rocks		0	0	0	0	0	0	0	0	0	0	0	0
89809	Casey Skiway South		0	0	0	0	0	0	0	0	0	0	91	99
89811	Law Dome Summit		58	68	61	70	D 18	0	0	0	37	93	88	85
89815	Haupt Nunatak		39	34	39	40	D 4	0	D 1	0	70	66	60	31
89828	Dome C II	GSN station	99	100	100	100	100	100	100	100	100	D 7	0	73
89832	D-10		D 30	D 28	D 31	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 28	D 31
89834	D-47		D 30	D 28	D 31	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 19	D 8
89836	D-85	No Synops	0	0	0	0	0	0	0	0	0	0	0	0
89859	Jang Bogo		98	100	100	99	99	99	100	100	100	100	99	99
89864	Manuela		D 29	D 28	D 31	D 30	D 31	D 29	30	D 31	D 30	D 31	D 28	D 30
89865	Whitlock	GSN station	D 30	D 28	D 31	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 24	D 16
89866	Marble Point	GSN station	100	100	100	100	100	100	100	100	100	100	100	100
89868	Schwerdtfeger		D 30	D 28	D 31	D 30	D 31	30	D 31	D 31	D 30	D 31	D 16	D 13
89869	Marilyn	GSN station	D 30	D 28	D 31	D 30	D 31	D 30	D 31	D 1	0	0	0	0
89872	Ferrell	GSN station	D 30	D 28	D 31	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 18	D 17
89873	Elaine		0	0	0	0	0	0	D 1	0	0	0	0	0
89879	Possession Island	GSN station	100	98	97	42	33	D 6	D 2	D 3	92	87	100	98
93929	Enderby Island AWS		100	99	99	60	0	D 6	0	0	0	0	0	0
93947	Campbell Island AWS	GSN station	100	100	99	100	100	100	100	100	99	97	96	66
94997	Heard Island (The Spit)		0	0	0	0	0	0	0	0	0	0	0	0
94998	Macquarie Island	GSN station	D 31	41	94	93	83	87	84	87	100	100	100	100
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		0	0	0	0	0	0	D 1	0	0	0	0	0
AABRI	Brianna		0	0	0	0	0	0	0	0	0	0	0	0
AADIS	Dismal Island	Off air	D 3	0	0	D 2	D 11	D 9	D 10	D 15	D 5	D 1	0	0
AACDN	Cape Denison	Off air	0	0	0	0	0	0	0	0	0	D 6	D 3	0
AAEMM	Emma		56	72	62	85	76	76	79	78	74	81	D 9	D 14
AAEML	Emilia		58	74	66	82	81	79	79	80	77	84	D 18	D 15
AAERN	Erin		58	75	66	87	83	78	83	78	77	86	D 15	D 13
AAKMS	Kominko-Slade		0	0	0	0	0	0	D 1	0	0	0	0	0
AALR2	Laurie II		56	74	66	86	82	77	81	79	80	86	D 21	D 22
AALOL	Tourmaline Plateau		0	0	0	0	0	0	0	0	0	0	0	0
AAMIZ	Mizuho		52	69	59	76	74	70	73	68	71	79	40	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 30	D 28	D 31	D 30	D 31	D 30	D 31	D 31	D 30	D 31	D 24	D 18
AAWFD	Willie Field		0	0	0	0	0	0	0	0	0	0	D 4	D 9
AAWDB	Windless Bight		0	0	0	0	0	0	0	0	0	0	0	0
AAZOR	Priestley Glacier	No Synop	0	0	0	0	0	0	0	0	0	0	0	0