Talk:GEOnet Names Server
Multiple tagging schemes
It would seem that separate imports invented separate tagging schemes for this dataset. The table below presents the ID tag as a sample of the situation, with data according to Taginfo (note: "UFI" = "Unique Feature ID"):
|GNS ID tag||Uses||Main Region(s)||Notes|
|GNS:id||about 55k||Nigeria clearly and some other uses elsewhere in Africa||UFI|
|gns_uni||about 14k||UK, Sweden, Philippines, Peru, Ecuador||UNI ("Unique Name ID") used in this scheme instead of the UFI|
|gns:ufi||almost 13k||Somalia clearly, also near Estonia and in Canada|
|gns:UFI||about 12k||mostly in the vicinity of China, Ireland, and Oman|
|gns:uni||about 7k||Canada, part of S. America, India, Philippines, Papua New Guinea||About 2k of these also have gns:ufi, which leaves about 5k that might be UNI-only|
|gns:dms_lat=*||555500||UTM northing ?||unnecessary|
|gns:dms_long=*||-1153900||UTM easting ?||unnecessary|
|gns:dsg=*||PPL||feature code||needs translation|
|gns:fc=*||P||class code||redundant to feature code|
|gns:mgrs=*||11UNB8437597628||Military Grid Reference System||unnecessary|
|gns:v:xx:full_name=*||Utikumasis Lake||duplicated information|
|gns:v:xx:full_name_nd=*||Utikumasis Lake||duplicated information|
Minor annoyance: GEOnet's SSL/TLS certificate seems not to work (at least not outside the US)
This is just a minor annoyance, in case someone is wondering: when using the Chrome browser (and possibly any other based on Chrome, such as Brave), at the date of access, the
http:// URL will be redirected to
https://, but Chrome complains about an invalid certificate. Actually, the certificate seems to be legitimate, it just has been emitted by a military certificate authority, and possibly Chrome has some issues with it (at least, when viewing from outside the US), to the point that it prevents all accesses to GEOnet's servers.
Other browsers (such as Safari or Firefox) will complain (
SEC_ERROR_UNKNOWN_ISSUER on Firefox) but still allow access.
What is the point of dsg_string?
In GNS `dsg` means Feature Designation Code, it maybe 2-5 characters so it may not be understood. These codes are explained in another tables in https://geonames.nga.mil/gns/html/rest/lookuptables.html#Designation%20Codes so we but the `dsg` code and `dsg name` --حبيشان (talk) 14:33, 18 April 2021 (UTC)
- But if something as tagged as place=village then we know it is a populated place. What is being added by GNS:dsg_string=populated place ? Mateusz Konieczny (talk) 15:41, 18 April 2021 (UTC)
- Somtimes in GNS same name used for the administrative unit (e.g district or state) (dsg code in GNS is 'ADM1' or 'ADM2') and for town (dsg code in GNS is 'PPL'). The location of the administrative unit is in the center of the area of it. And the location of town is in the center of town. Some previous importing tag administrative unit ('ADM1' and 'ADM2') as (place=locality). If some one else see the name he knows it as town name tagged as (place=locality) will fix it to (place=town) and will move the location to the nearest residential area on the imagery. We got a lot of mistakes because this bad importing. But when the dsg code is tagged we can prevent some of these mistakes.
- For villages we have not a good benefit for GNS:dsg_name or GNS:dsg_code beacause most of GNS data are of type PPL (populated place). But there are many of GNS features that have not an equivalent in OSM so importers may tag it as (place=locality) but if he but the dsg_code and dsg_name it will be clearer to understand the feature. --حبيشان (talk) 14:46, 19 April 2021 (UTC)
What exactly is the meaning of dsg=WAD ?
In Arabic Wadi (واد) means just valley, regardless of water running through it or not, while in English it's usually used for a valley or gorge with an intermittent stream. Do we know what meaning is used in the GNS database? I'm asking because there are also dsg=STMI for intermittent stream and dsg=VAL for valley, so probably WAD means neither "just valley" nor "just intermittent stream". --Lyx (talk) 22:56, 19 April 2021 (UTC)
GNS explain 'WAD' as dry, intermittent, or ephemeral drainage course(s) commonly found in North Africa, and the Middle East, the channels of which are commonly shallow and braided and the location of node is at Mouth --حبيشان (talk) 14:11, 25 April 2021 (UTC)