WikiProject Haiti/Tasks and Ideas/RiverLabeling
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There was a request on the crisis mappers mailing list for better river labeling, quoting: ... and shapefiles (point) of all fresh landslides suspected for the Riviere Frorse valley (btw. I cannot see a label for that major river on OSM, but it is there on GoogleMaps, might be worth labeling most major features).
(About Riviere "Frorse", it comes very certainly from an error reading Rivière "Froide"... see this message, and the maps listed therein)
List of Rivers in OSM
- link to the OSM way
- link to OSM history
- approx. way length
- link to immediately start editing in JOSM (if remotecontrol plugin is installed).
Jan also has a map of this data, of course! - for better performance the named-track will simplify!
Old topographic maps that show terrain are available from many sources. Many have been scanned and are viewable at the New York Public Library site. Some of these are warped (georectified so they align with other maps) and served via WMS (find links there).
- 1:50,000 scale (less detailed)
The 1:50K topo map may be viewed as a layer in the Haiti Crisis Map, or as a WMS in JOSM using this URL: http://hypercube.telascience.org/cgi-bin/mapserv?map=/home/ortelius/haiti/haiti.map&layers=haiti-tlm-50&request=GetMap&version=1.0.0&styles=&format=image/jpeg&service=WMS&
- 1:25,000 scale (more detailed)
There are dozens of the 1:25,000 scale topo maps. Example: http://maps.nypl.org/relief/maps/preview/192
Note on the naming convention to aid in searching the NYPL site:
- 1st two digits: westernmost maps will start with 53, while easternmost maps start with 58
- 2nd two digits: southernmost maps will have 2nd pair of digits 70, while northernmost maps will have 75
- 5th digit: divides into quadrants, 1=NE, 2=SE 3=SW, 4=NW
- Then divided into quadrants again: NE, SE, SW, NW
- Example: the map linked to above is named 56712SW (Trouin), located between Jacmel and Leogane
Important note on using the warped maps: the warp may not be very precise. In most cases it is best to move the map so it aligns with already mapped features. In JOSM, use the offset button in, and in Potlatch hold down the space bar and move the base layer.
- General map of Haiti with principal rivers: http://commons.wikimedia.org/wiki/File:Haiti_topographic_map-fr.svg
- MINUSTAH rivers data set with 273 features is available at GeoCommons (link) in a number of formats, including CSV and KML. Licensing is suitable for OSM (CC-BY 3). NOTE: doesn't include names, but may be helpful as another general resource.
Tagging Unnamed Rivers already in OSM
- Look at the lists linked above, or Jan's map
- Go to one of the unnamed rivers in the list.
- Refer to the topographic maps at the URLs above, and label any OSM objects accordingly with name=*.
Add rivers using maps and/or tracing over imagery
Many rivers may be visible in imagery and/or on the 1:25,000 topo maps. If you are lucky, they are even named on the topo map! Note that the maps have many "intermittent rivers", shown by a combination of lines and dots.
Note (2010-02-19): OpenStreetBugs contains many messages related to rivers to complete (presumably from available maps or imagery).
Edit existing rivers
As can be seen in Jan's list of named rivers, some rivers are made up of multiple ways. These ways can be joined together by merging (see instructions for Potlatch or JOSM ) Be sure to check that tags are uniform before merging.
Also, some river names have typos or what appear to be incomplete or inconsistent names. Look through the list, check other connecting river ways and relevant topo maps, then make corrections.
Create table of rivers
Gert Gremmen has collected the following list of named rivers in Haiti.
- Has this table been cross-referenced with Jan's lists?
- Does "Region or Ending" refer to the Department? Arrondissement? Waterbody the river empties into?
- At the moment the name of the region is copied from the title of the map it was taken from/ drainage basin.
- Where is the debit (flow) data from?--Neuhausr 04:51, 13 February 2010 (UTC)
- Debit is from a site I found UTTP
- US Army Engineer Corp made a Detailed analysis of Haiti Rivers debit and usage (Text in french) . In appendix C, there are river debits presented wich diverge from the results already presented PierreB 19:51, 17 February 2010 (UTC).
|Region or Ending in||River||OSM link||Properly named in OSM?||Debit (M3/sec)|
|Nord Est||Dajabón River (AKA Masacre)||example (multiple ways)||yes|
|East of Baie de Cap-Haitien (Nord)||Grande Rivière du Nord||example (multiple ways). Tracing is not completed. Is in OSM - need link to the OSM object PierreB 19:23, 17 February 2010 (UTC)||unknown||5.4|
|Port-de-Paix (Nord-Ouest)||Les Trois Rivières (111 km) goes form Plaisance to Port-de-Paix.||It is composed of 17 ways that need to be linked together with a RELATION object.||Yes||6.5|
|Baie de Gonaive, Gonaive||Rivière La Quinte||WAY=50648061||Yes||-|
|Rivière La Quinte||Rivière D'ennery||Yes||-|
|Rivière D'ennery||Rivière D'Lo||WAY=48624550||Yes||-|
|Rivière D'ennery||Rivière Torpin||WAY=48625408||Yes||-|
|Rivière Torpin||Rivière Duvoisin||WAY=48625398||Yes||-|
|Baie de Grande Pierre, Gonaive||Rivière de l’Estère||WAY=50258755||Yes||3.1|
|Grande Saline||Rivière de l'Artibonite||WAY=48372396||Yes||84|
|Gonave||Rivière de Fer à Cheval||No||No||-|
|Gonave||Ravine Trou Singer||Yes||-|
|Gonave||Rivière de Saint-Marc||No||Yes||-|
|Gonave||Grande Riviere du Cul de Sac||No||No||-|
|Gonave||Rivière de Grand Goâve||No||Yes||-|
|Gonave||Grand Rivière de Nippes||No||No||-|
|La Borgne||Rivière du Bas Sainte Anne||No||No||0.0|
|La Borgne||Rivière l'Enfer||No||No||0.0|
|La Borgne||Ravine Mombin||No||No||0.0|
|La Borgne||Rivière Eau Riflet||No||No||0.0|
|La Borgne||Rivière Eau Duval||No||No||0.0|
|La Borgne||Rivière l' Ester Duval||No||No||0.0|
|La Borgne||Rivière Estère Rambou||No||No||0.0|
|La Borgne||Ravine La Savotte||No||No||0.0|
|Caribbean Sea||Ravine River (Ravine du Sud)||No||No||3.9|
|Caribbean Sea||Rivière de Cavaillon||WAY=88973914||Yes||0.0|
|Caribbean Sea||Rivière des Côtes de Fer||WAY=51308620||Yes||0.0|
|Caribbean Sea||Rivière de Bainet||WAY=51413786||No||0.0|
|Caribbean Sea||Grand Rivière de Jacmel||No||No||0.0|
|Caribbean Sea||Pedernales River||No||Yes||0.0|
|Caribbean Sea||Acul River||No||No||0.0|
|Savane a Roches||Ravine Deux Frères||No||No||0.0|
|Savane a Roches||Rivière Roche||No||No||0.0|
|Savane a Roches||Ravine Paresseux||No||No||0.0|
|Savane a Roches||Ravine Bristol||No||No||0.0|
|Savane a Roches||Ravine Potemot||No||No||0.0|
|Savane a Roches||Rivière Espagnol||No||No||0.0|
|Savane a Roches||Rivière Petit Bras||No||No||0.0|
List with debit in cubic meters /second could be tagged ! Drinking water Artibonite 84.0 Riviere de la Grand’ Anse 12.0 Riviere de Cavaillon 8.0 Trois Rivieres 6.5 Riviere Momance 6.4 Riviere du Limbe 5.6 Grande Riviere du Nord 5.4 La ravine du Sud 3.9 Riviere du Cul-de-Sac 3.9 Riviere de l’Estere 3.1 Lakes (for surface tags…) Lake of Miragoane: (25 sq.km.) is located at one-kilometer southeast of the city of Miragoane. Its length is 12 km. http://maps.nypl.org/relief/maps/205 Lake Azuei or Etang Saumatre: (170 sq.km.) is located at the eastern extreme of the Cul-de-Sac Valley. It is 22 km long and 12 km wide. Trou Caiman: ( Approximately 16 sq.km.), this small lake is located east of the northern part of the Cul-de-Sac Valley. It is 9 km long and 3 km wide.
- Jan Tappenbeck - analysing naming status of already mapped rivers in Haiti
- Gert Gremmen - labeling rivers
- Brad Neuhauser - labeling rivers, wiki pruning
- Pierre Beland - labeling rivers