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 2020, 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	97	99	100	100	99	100	100	99	D 31
68906	Gough Island	GSN station	83	82	88	85	82	85	80	87	70	70	82	D 31
68992	Bouvetoya	GSN station	0	0	0	0	0	0	0	0	0	0	0	0
68994	Marion Island	GSN station	98	97	97	95	98	99	100	100	99	100	100	D 31
88870	Mount Byron		97	70	99	97	95	97	78	93	95	95	87	D 31
88878	Pebble Island		95	100	98	97	95	88	90	90	93	92	95	D 31
88881	Mount Kent		95	100	99	97	95	97	95	94	95	95	95	0
88883	Weddell Island		95	100	98	97	95	88	85	92	93	92	95	D 31
88889	Mount Pleasant Airport	GSN station	95	99	99	97	95	98	95	94	95	95	95	D 31
88892	Sapper Hill		0	0	0	0	0	0	0	0	0	0	0	0
88894	Mount Alice		96	100	99	97	95	97	94	93	95	95	95	D 31
88897	Sea Lion Island		95	100	99	97	86	75	69	93	95	91	95	D 31
88900	Bird Island		91	93	91	85	95	92	74	69	96	99	100	D 31
88903	Grytviken	GSN station	91	96	90	90	100	90	92	66	77	97	91	D 31
88986	South Thule Island		0	0	0	0	0	0	0	0	0	0	0	0
88963	Esperanza	GSN station	91	92	92	95	96	98	96	97	99	98	97	D 31
88968	Orcadas	GSN station	100	97	98	96	100	94	100	100	99	98	96	D 31
89002	Neumayer	GSN station	100	100	99	96	100	100	100	100	100	100	100	D 31
89003	Halvfarryggen EP11		95	98	95	95	99	89	76	94	74	86	95	D 25
89004	SANAE	GSN station	95	99	99	98	100	98	100	97	98	100	100	D 31
89009	Amundsen-Scott	GSN station	99	95	92	95	97	98	99	97	99	97	97	D 31
89011	Soerasen		95	99	96	96	99	95	80	82	81	87	97	0
89013	Baldrick AWS		75	73	75	74	57	75	74	62	59	78	76	D 30
89014	Nordenskiold		97	96	95	97	98	D 4	0	D 4	0	0	0	0
89022	Halley	GSN station	99	97	98	97	98	100	100	100	88	70	77	D 31
89034	Belgrano II		100	100	97	97	100	100	100	100	100	100	100	D 31
89047	Filchner		95	98	96	95	99	89	79	99	79	87	100	D 25
89049	AGO-2	Failed	0	0	0	0	0	0	0	0	0	0	0	0
89050	Bellingshausen	GSN station	100	100	98	97	100	97	100	100	100	97	100	D 31
89053	Jubany		95	95	93	93	98	98	97	97	99	100	99	D 31
89054	Dinamet		0	0	0	0	0	0	0	0	0	0	0	0
89055	Marambio	GSN station	95	98	95	95	99	98	96	99	97	100	99	D 31
89056	Frei	GSN station	100	99	96	98	100	100	100	100	100	100	100	D 31
89057	Arturo Prat		98	97	95	98	99	97	100	99	97	97	92	D 31
89058	Great Wall		100	100	99	97	100	100	99	98	99	99	99	D 31
89059	O'Higgins		100	98	94	96	95	95	100	98	95	81	93	D 28
89061	Palmer		98	100	99	97	100	100	88	99	100	100	100	D 31
89062	Rothera	GSN station	98	100	99	97	100	100	100	100	100	100	100	D 31
89063	Vernadsky	GSN station	100	100	97	97	100	100	100	100	100	100	100	D 31
89064	Juan Carlos		0	0	0	0	0	0	0	0	0	0	0	0
89065	Fossil Bluff	GSN station	69	76	71	81	78	77	66	84	84	88	83	D 31
89066	San Martin		98	98	97	97	99	100	100	99	100	100	100	D 31
89079	Criosfera 1		60	56	54	50	51	47	54	48	48	41	48	0
89087	Thiel Mountains		54	64	74	96	100	100	87	84	80	99	97	D 31
89108	Henry		D 31	D 29	D 31	D 25	D 31	D 30	D 25	D 27	D 30	D 30	D 30	D 31
89132	Russkaya		0	0	0	0	0	0	0	0	0	0	0	0
89251	King Sejong		99	95	96	94	94	92	95	98	95	96	97	D 31
89257	Limbert		88	86	81	97	98	99	94	99	95	99	98	D 31
89262	Larsen Ice Shelf	GSN station	85	93	77	84	88	75	86	90	86	93	95	D 30
89266	Butler Island	GSN station	84	86	87	96	96	97	90	98	95	99	96	D 31
89269	Bonaparte Point		0	0	0	0	0	0	0	0	0	0	0	0
89272	Sky Blu	GSN station	87	82	84	96	97	99	93	99	95	97	96	D 31
89314	Theresa		100	100	99	96	100	100	100	99	100	100	100	D 31
89324	Byrd Station	GSN station	D 31	D 29	D 31	D 24	D 31	D 30	D 27	D 27	D 29	D 29	D 30	D 31
89327	Mount Siple	GSN station	0	0	0	0	0	0	0	0	0	0	0	0
89329	Harry	GSN station	D 31	D 28	D 31	D 25	D 31	D 30	D 27	D 24	D 29	D 30	D 29	D 31
89332	Elizabeth		D 31	D 29	D 31	D 25	D 31	D 30	D 26	D 27	D 30	D 30	D 30	D 31
89345	Siple Dome	GSN station	D 31	D 29	D 31	D 25	D 31	D 30	D 24	D 26	D 29	D 30	D 29	D 31
89376	Gill	GSN station	D 31	D 29	D 31	D 25	D 31	D 30	D 27	D 28	D 29	D 30	D 30	D 31
89377	Lettau	GSN station	D 31	D 29	D 31	D 25	D 31	D 30	D 26	D 26	D 28	D 29	D 30	D 31
89504	Troll		100	89	79	90	93	98	95	99	D 1	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	97	100	100	100	100	100	100	100	D 31
89514	Maitri		96	95	91	85	91	96	95	98	87	88	96	D 30
89528	AGO-3	Failed	0	0	0	0	0	0	0	0	0	0	0	0
89532	Syowa	GSN station	100	100	99	98	100	100	100	100	100	100	100	D 31
89536	Plateau		0	0	0	0	0	0	0	0	0	0	0	0
89542	Molodeznaja		100	99	82	66	50	45	35	100	83	84	73	0
89558	Pole of Inaccessibility		0	0	0	0	0	0	0	0	0	0	0	0
89564	Mawson	GSN station	100	100	99	97	100	100	100	100	100	100	100	D 31
89570	Davis (Whoop Whoop)		D 8	0	0	0	0	0	0	0	0	0	0	0
89571	Davis	GSN station	100	100	99	97	100	100	99	100	99	100	100	D 31
89573	Zhongshan	GSN station	100	100	99	97	99	100	99	100	100	100	100	0
89574	Progress	GSN station	100	99	97	97	98	99	98	100	99	99	98	D 31
89575	Druzhnaya 4		99	100	99	97	98	99	97	66	D 1	0	68	D 31
89577	Dome A	GSN station	87	86	80	75	80	84	78	89	73	77	82	D 31
89578	Eagle		95	94	91	87	92	92	86	91	76	87	86	D 31
89592	Mirnyj	GSN station	100	99	98	97	99	90	98	97	99	97	100	0
89598	AGO-4		D 30	D 29	D 31	D 24	D 31	D 30	D 24	D 28	D 30	D 30	D 30	D 31
89601	Oazic Bangera		0	0	0	79	66	57	50	52	30	0	0	0
89606	Vostok	GSN station	99	100	99	97	100	100	100	100	100	100	100	0
89610	Cape Poinsett		0	0	0	0	0	0	0	D 1	D 6	0	0	0
89611	Casey	GSN station	100	100	95	97	100	100	100	100	100	100	98	D 31
89614	Wilkins Runway West		73	72	62	70	37	D 4	D 4	55	76	72	79	D 31
89615	Wilkins Runway East		0	0	0	0	0	0	0	0	0	0	0	0
89625	Concordia	GSN station	100	100	99	96	99	99	99	100	99	97	98	D 31
89628	AGO-1	Failed	0	0	0	0	0	0	0	0	0	0	0	0
89642	Dumont d’Urville	GSN station	98	100	97	98	98	100	100	97	100	100	100	D 31
89643	Port Martin		0	0	0	0	0	0	D 1	0	0	0	0	0
89646	Sitry Point		0	0	0	0	0	0	0	0	0	0	0	0
89648	Mid Point		95	97	87	85	30	0	0	0	0	0	0	0
89657	Leningradskaya		0	0	0	0	0	0	0	0	0	0	0	0
89659	Priestley (Nevee)		93	96	89	89	91	89	91	46	D 19	83	91	D 31
89661	Cape Phillips		94	98	90	92	92	93	88	92	80	91	93	D 31
89662	Mario Zuchelli Station	GSN station	87	81	88	90	93	86	90	91	81	89	89	D 31
89664	McMurdo	GSN station	98	99	89	89	98	100	98	99	98	100	97	D 31
89666	Cape Ross		97	98	91	91	97	88	93	97	74	89	92	D 31
89667	Pegasus North		0	0	0	0	0	0	0	0	0	0	D 1	0
89734	Dome Fuji		D 31	D 29	D 31	D 26	D 31	D 30	D 28	D 26	D 28	D 30	D 29	D 31
89744	Relay Station	GSN station	D 31	D 29	D 31	D 25	D 31	D 30	D 26	D 27	D 29	D 30	D 29	D 31
89767	G3 (Amery Ice Shelf AWS)		88	80	83	79	87	86	78	80	65	74	71	D 16
89768	Minna Bluff		0	0	0	0	0	0	0	0	0	0	0	0
89769	Linda		100	100	99	97	100	98	98	97	96	93	97	D 31
89776	Bharati		88	81	96	95	95	62	0	44	87	83	87	0
89799	Nico		D 31	D 29	D 31	D 25	D 31	D 30	D 24	D 28	D 30	D 30	D 30	D 31
89807	Snyder Rocks		0	0	0	0	0	0	0	0	0	0	0	0
89809	Casey Skiway South		100	62	0	0	0	0	0	0	0	0	0	0
89811	Law Dome Summit		66	D 2	D 4	D 9	D 12	D 4	D 2	D 17	33	61	61	D 31
89815	Haupt Nunatak		76	75	65	54	D 13	D 2	0	0	0	0	0	D 23
89828	Dome C II	GSN station	100	99	99	95	99	100	100	100	99	99	100	D 31
89832	D-10		D 31	D 29	D 31	D 26	D 31	D 30	D 25	D 27	D 29	D 29	D 30	D 30
89834	D-47		D 31	D 29	D 31	D 26	D 31	D 30	D 26	D 24	D 27	D 29	D 30	D 31
89836	D-85	No Synops	0	0	0	0	0	0	0	0	0	0	0	0
89859	Jang Bogo		100	100	99	97	96	99	99	95	100	97	96	D 31
89864	Manuela		D 31	D 29	D 31	D 26	D 31	D 30	D 27	D 27	D 29	D 28	D 30	D 31
89865	Whitlock	GSN station	D 31	D 29	D 31	D 25	D 31	D 30	D 24	D 26	D 30	D 28	D 30	D 31
89866	Marble Point	GSN station	100	100	98	95	100	100	100	99	100	100	100	D 31
89868	Schwerdtfeger		D 31	D 29	D 31	D 25	D 31	D 30	D 26	D 28	D 30	D 30	D 30	D 31
89869	Marilyn	GSN station	D 31	D 29	D 31	D 25	D 31	D 30	D 24	D 24	D 28	D 30	D 30	D 31
89872	Ferrell	GSN station	D 31	D 29	D 31	D 25	D 31	D 30	D 26	D 27	D 28	D 30	D 30	D 31
89873	Elaine		D 31	D 29	D 31	D 24	D 31	D 30	D 24	D 4	0	0	D 4	0
89879	Possession Island	GSN station	100	99	95	90	38	D 11	D 5	D 2	77	95	96	D 31
93929	Enderby Island AWS		95	80	83	97	99	100	100	98	91	94	94	D 31
93947	Campbell Island AWS	GSN station	100	100	99	97	100	100	100	100	100	99	97	D 31
94997	Heard Island (The Spit)		0	0	0	0	0	0	0	0	0	0	0	0
94998	Macquarie Island	GSN station	92	93	94	90	91	D 30	D 31	D 31	D 30	D 31	D 30	D 31
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	D 2	0	0	0	0	0	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 30	D 29	D 30	D 22	D 14	D 13	D 25	D 27	D 30	D 24	0	0
AACDN	Cape Denison	Off air	0	D 2	0	0	0	0	0	0	0	0	0	0
AAEMM	Emma		63	74	62	57	58	63	46	45	35	56	52	0
AAEML	Emilia		60	73	63	58	65	64	40	46	35	59	50	D 31
AAERN	Erin		61	74	63	59	63	61	39	46	36	57	50	D 31
AAKMS	Kominko-Slade		D 3	D 2	0	0	0	0	0	0	0	0	0	0
AALR2	Laurie II		62	72	65	57	65	60	37	48	39	59	50	D 31
AALOL	Tourmaline Plateau		0	0	0	0	0	0	0	0	0	0	0	0
AAMIZ	Mizuho		56	66	56	54	60	62	38	43	35	59	45	D 31
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 27	D 31	D 30	D 25	D 28	D 30	D 30	D 30	D 31
AAWFD	Willie Field		0	D 1	0	0	0	0	0	0	0	0	0	0
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