GHCNM-3 metadata

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Nick Barnes

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May 25, 2012, 9:49:02 AM5/25/12
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GISTEMP uses GHCN-M 3, but does not use the GHCN-M 3 metadata.  Instead, it uses its own metadata, plainly derived from the GHCN-M 3 metadata, by an unpublished program, and then apparently refined by hand.

1. There are the following changes, which look manual to me.

1.1. station name corrections:

14168902000  TRISTAN DA CU       -> TRISTAN DA CUNHA
14361998000  PORT-AUX-FRAN       -> PORT-AUX-FRANCE, KERGUELEN
21135700000  GUR'EV              -> ATYRAU
30485585000  ISLA JUAN FER       -> ISLA JUAN FERNANDEZ
30489056000  CENTRO MET.AN       -> CENTRO MET.AN, Marsh
40371964000  WITHEHORSE, Y       -> WHITEHORSE, Y
63826063000  ST.PETERBURG        -> ST.PETERSBURG
64308160000  ZARAGOZA/AEROPUERTO -> ZARAGOZA/AEROPUERTO SPAIN
64502590000  VISBY FLYGPLA       -> VISBY AIRPORT       SWEDEN
70089055000  CMS"VICE.DO.M       -> CMS_VICE.DO.Marambio
70089061000  PALMER STATIO       -> PALMER STATION
70089066000  BASE SAN MART       -> BASE SAN MARTIN

1.2. elevation entries, replacing 'missing data' markers of -999:

30188963000    13
70089009000  2835
70089055000   198
70089059001    10
70188968000     6

1.3. other metadata, replacing blank metadata entries.  Some of this is evidently fake (indeed the TOPO and STVEG columns are all explicitly 'fake')

42500021514    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500026353    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500035512    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500091500    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500100803    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500101956    -9U  132fakeLA-9x-9COOL GRASS/SHRUBC
42500105685    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500106305    -9U  624fakeno-9A-9WARM DECIDUOUS  C
42500116738    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500141867    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500147542    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500150381    -9S   12fakeno-9x-9WARM GRASS/SHRUBB
42500153762    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500170814    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500171628    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500180700    44S   15fakeCO 1x-9WATER           B
42500185718  2690U 2342fakeno-9A 3WARM CROPS      C
42500196783    25U   25fakeCO25x-9COOL FOR./FIELD C
42500198757    56U   50fakeCO25x-9COOL FOR./FIELD C
42500199316    56S   13fakeCO25x-9COOL FOR./FIELD C
42500210252    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500213303    -9S   11fakeno-9A-9WARM DECIDUOUS  B
42500215175    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500244364    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500247318    -9S   12fakeno-9x-9WARM GRASS/SHRUBB
42500248569    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500258133    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500270706    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500288816    -9S  109fakeno-9x-9COOL FIELD/WOODSB
42500292608    -9S   12fakeno-9x-9WARM GRASS/SHRUBB
42500300023    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500302060    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500302129    -9S   11fakeno-9A-9WARM DECIDUOUS  C
42500304996    -9S   12fakeno-9x-9WARM GRASS/SHRUBB
42500308737    -9S   12fakeno-9x-9WARM GRASS/SHRUBB
42500318694    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500321408    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500332098    -9S   12fakeno-9x-9WARM GRASS/SHRUBB
42500364896    -9S   12fakeno-9x-9WARM GRASS/SHRUBB
42500367029    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500416794    -9S   26fakeno-9x-9WARM CROPS      C
42500422726    -9S   12fakeno-9x-9WARM GRASS/SHRUBB
42500425477    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500426135    -9S   12fakeno-9x-9WARM GRASS/SHRUBB
42500427559    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500427729    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500437607    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500437612    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500451630    -9S   12fakeno-9x-9WARM GRASS/SHRUBB
42500451939    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500453222    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500455224    -9S   12fakeno-9x-9WARM GRASS/SHRUBB
42500457267    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500466989    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500467029    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500469610    -9S   12fakeno-9x-9WARM GRASS/SHRUBB
42500475808    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500480552    -9R   -9fakeno-9A-9WARM DECIDUOUS  A
42500481840    -9S   12fakeno-9x-9WARM GRASS/SHRUBB
64308160000   288U  449HIxxno-9A10WARM GRASS/SHRUBA

2. There are two new integer columns at the end of every row.  The first takes 134 different values from 0 up to 186.  The second takes the two values 0 and 90.  I suspect these are something to do with rural/urban classification, possibly using satellites.  Note that in earlier versions of GISTEMP, there were two fields here, us_light and global_light, which were similarly GISS-specific.
--
Nick Barnes, Climate Code Foundation, http://climatecode.org/

Nick Barnes

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May 25, 2012, 11:09:24 AM5/25/12
to ccc-giste...@googlegroups.com
Also notes on the change between the old v2.inv and the new v3.inv:

1. The single-character field after the population class (RSU) has been dropped.

2. The final field is new.

3. A large number of 425 (US) stations have changed.  Possibly there's been a mass renumbering?

4. Some minor changes, which are presumably manual:

21135700000 station name GUR'EV                        -> ATYRAU
63826063000 station name ST.PETERBURG                  -> ST.PETERSBURG
64308160000 station name ZARAGOZA AERO       SPAIN     -> ZARAGOZA/AEROPUERTO SPAIN
64308160000 latitude     41.70                         ->   41.67
64308160000 longitude    -1.00                         ->   -1.02
64308373001 last field   0                             ->      15
64308373001 longitude    1.80                          ->   -1.80
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