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January 2021
====================
Stations are retrieved from https://tgftp.nws.noaa.gov/data/nsd_cccc.txt
wget -O data/nsd_cccc.txt https://tgftp.nws.noaa.gov/data/nsd_cccc.txt
dos2unix data/nsd_cccc.txt
data/station_names.txt is used to provide correct orthography of the area
where the station is located, which is used in the configuration dialog
of kweather applet.
The format of station_names.txt is ICAO;status;region_state;name;INFO1;INFO2
If status is one of none|false|na|decomissioned the station is ignored.
INFO1 is what was previously the 5th position in weather_stations.desktop
makred with ------
INFO2 is what was previously the 6th position in weather_stations.desktop
makred with ---
The source nsd_cccc.txt has illed information and structure that needs to be
corrected in the files used in kweather. Some of the problems are:
1. decomissioned stations
2. names of station locations
The genstations.pl is based on following idea
Based on the input nsd_cccc.txt and the station_names.txt file we can
generate stations.dat like following:
for each station in nsd_cccc.txt do
check if station ID matches one in station_names.txt
if it matches then
use the name of the station
else
use the name from nsd_cccc.txt
write entry/line in stations.dat
Based on stations.dat and weather_stations.desktop.in we can generate
weather_stations.desktop.
weather_stations.desktop will be updated with the names from stations.dat
and the additional information will be preserved like following.
for each station in stations.dat
for each region from weather_stations.desktop.in
if state is provided in stations.dat
use the state to build a key with region and state
else
for each state in the states of the region
use the state to build a key
if section for this key exists
and
if name of the section matches
stop processing
proper section was found
we add the station here
write entry for the station
There are few problems with this approach and the ill provided nsd_cccc.txt data
1. States are missing and thus correlation between station and state can not be done
2. When State is missing, based on the country/state name some entries are ambig
Example Georgia and US state of Georgia
Country list seemed to be used for the country names and as convention here
wget ftp://ftp.ncdc.noaa.gov/pub/data/noaa/country-list.txt but the FIPS notation was
dropped in 2008 as a standard, however continiues to be used.
"The Census Bureau decided that, based on decades of using the terminology FIPS to
describe its codes, it would continue to use the FIPS name for its updated codes,
where FIPS now stood for FIP "Series", since there no longer existed an official
FIP "Standard". [https://en.wikipedia.org/wiki/FIPS_county_code]
A mapping to ISO 3166 ALPHA-2 https://laendercode.net/en/2-letter-list.html
seems more appropriate.
TODO: check the country code mapping in weather_stations.desktop.in
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