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osmandapp / OsmAnd

OsmAnd
https://osmand.net
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water depth maps #3691

Open noci2012 opened 7 years ago

noci2012 commented 7 years ago

The map is rather disapointing. All NL waterdepth's in coastal regions is 1 meter, while there are clearly better data available. and where depthd actualy do vary from 0.5 - 20 meters For NL data can be obtained from the open earth site like: https://publicwiki.deltares.nl/display/OET/Dataset+documentation+bathymetry+NLHO

vshcherb commented 7 years ago

We will investigate other sources, though some of them look commercial for usage.

noci2012 commented 7 years ago

Maybe a way to enter these through other means like OSM editing? (possibly tagged as user supplied) At least i have some knowledge about local waters. Besides that some of the bouys in NL are marking a 1.5 m depth line, and are an indication of less/more than 1.5 meters. (it's the small red/green bouys that clearly are outside of marked waterways, except for yellow ones those are marking special interest areas (Kite surfind, speedboating..)

I have been looking around, and finding a public available source is less obvious than i first thoughts as well.

vshcherb commented 7 years ago

We are planning to make a special map for NL though the precision is much higher so we need to make changes in the app itself and we target it for 2.7.

noci2012 commented 7 years ago

Thanks

Dirk-- commented 7 years ago

please note: https://forum.opennauticalchart.org/viewtopic.php?id=38

vshcherb commented 7 years ago

@xmd5a2 copying lnik http://portal.emodnet-bathymetry.eu/mean-depth-full-coverage

noci2012 commented 7 years ago

Found a ENC source for the main waterways anyway: http://vaarweginformatie.nl/fdd/main/infra/enc That is a base map of several years ago + updates for parts that changed. (IENC) (This is used as a source for the printed maps that can be bought as well). Downloads with supplemental info: http://vaarweginformatie.nl/fdd/main/infra/downloads

From RWS (authoritive source) Least measured Depths https://geoservices.rijkswaterstaat.nl/apps/geonetwork/srv/dut/catalog.search#/metadata/ee978a3d-28f8-48d8-960f-b018afde4ab6

the generic search engine access is: https://geoservices.rijkswaterstaat.nl/apps/geonetwork/srv/dut/catalog.search (Other items can be selected from the set by selecting f.e. "binnenwater" (=inland waterway) & "diepte" (=depth) (this will present a list of downloadable datasets, licenced mostly by: creative commons / deed.

Other data also available on: http://maps.grade.de/index.htm There also check out the various overlays (rightside + popup) not sure about downloads there though.