Import/Catalogue/Aquaculture import Norway
This is a plan for importing aquaculture facilities (marine farms) in Norway. The import is currently being reviewed by the OSM community.
Goals
The objective is to import all aquaculture facilities in Norway. The aquaculture industry is required to hold a license from the Norwegian Directorate of Fisheries ("Fiskeridirektoratet") in order to establish and operate an aquaculture facility. This way all facilities may be found in a central registry held by Fiskeridirektoratet. There are approx. 1.700 active farming facilities in operation, mostly fish farms and mussel farms. More than 50% of the world's salmon consumption is produced in these farms.
Aquacultures are rendered by OSM nautical charts, including OpenSeaMap.org.
Schedule
- 14-22 November 2017: Dataset obtained
- 12 December 2017: Explicit permission obtained from Fiskeridirektoratet
- 15 January 2018: Import plan submitted for review by the Norwegian OSM mailling list
- 20 January 2018: Import plan submitted for review by the OSM Imports mailing list
- 25 January 2018: Import done
Import Data
Background
Fiskeridirektoratet provides an online service for downloading.
Data source site: https://kart.fiskeridir.no
Data license: https://data.norge.no/nlod/en/2.0
Type of license (if applicable): NLOD - Norwegian License for Open Governmental Data 2.0
Link to permission (if required): Explicit permission obtained 12 December 2017: Permission
OSM attribution (if required): Contributors
ODbL Compliance verified: Yes
OSM Data Files
The original data files may be inspected here: Google Disk
The following files have been used:
- Aktive tillatelser - Active licenses/locations
- Konsesjon flate - Permitted bounds (polygon) as described in license
- NYTEK plassering ytterpunkt - Actual shape of location (polygon) as observed by NYTEK
- Biomasse - Current fish species in fish farm
The quality of the polygons is mixed so a manual correction is needed.
Import Type
This is a one-time import. The import is mostly a manual job with the four files as guides for deciding the correct polygon for each aquaculture facility. Attributes from the different files are combined with the help of the Conflation plugin.
Data Preparation
Data Reduction & Simplification
Only planned or operational facilities will be included in the import. Only attributes listed below will be used.
Tagging Plans
Some aquaculture facilities are onshore (one node only), the others are at sea (polygon or node). Aquaculture facilities at sea will get dual tagging - both the usual OSM tags and seamark tags. Here is the proposed tagging:
| OSM tag | Seamark tag | Description |
|---|---|---|
| name=* | (none) | Name of the aquaculture facility |
| operator=* | (none) | Name of company operating the facility |
| landuse=aquaculture | seamark:type=marine_farm | Main tag |
| aquaculture=fish | seamark:marine_farm:category=fish | Fish farming |
| aquaculture=lobster | seamark:marine_farm:category=crustaceans | Lobster farming |
| aquaculture=oysters | seamark:marine_farm:category=oysters_mussels | Oyster farming |
| aquaculture=mussels | seamark:marine_farm:category=oysters_mussels | Mussel farming |
| aquaculture=seaweed | seamark:marine_farm:category=seaweed | Seaweed farming |
| fiskeridir:iid=* | (none) | Internal reference in aquaculture database at Fiskeridirektoratet, e.g. "14040" |
| fiskeridir:url=* | (none) | Link to aquaculture database with more information, e.g. https://www.fiskeridir.no//register/akvareg/?loknr=14040 |
The seamark marine farm category tagging is according to the IHO S-57 CATMFA coding. The oysters_mussels category is for bivalve molluscs.
Aquaculture facilities which are supposed to be operational based on information in the dataset but which cannot be observed on the aerial imagery will be tagged with proposed:landuse=aquaculture and proposed:seamark:type=marine_farm.
Aquaculture facilities used for fish farming will get the following extra tagging (multiple species separated by semicolon):
| OSM tag | Norwegian name in dataset |
|---|---|
| fish=salmon | Laks |
| fish=rainbow trout | Regnbueørret |
| fish=cod | Torsk |
| fish=halibut | Kveite |
| fish=arctic char | Røye |
| fish=mackerel | Makrell |
| fish=bellfish | Rognkjeks |
| fish=ballan wrasse | Berggylt |
Questions to reviewers:
- According to the wiki there is a choice of either using aquaculture=* or produce=*. Which one should be used?
- There seems to be a mix of plural and singular category names in the wiki (in aquaculture and in produce). What is correct tagging?
Changeset Tags
The changeset will be tagged with source=Fiskeridirektoratet and source:date=2017-11-22. It will be uploaded with the NKA_import account.
Data Transformation
No transformations except a simple upper case to lower case job in Excel and manual boundary adjustment according to aerial imagery.
Data Transformation Results
The final Aquaculture.osm file may be inspected in Google Disk. This file will be uploaded to OSM after merging with existing aquaculture facilities.
Data Merge Workflow
Team Approach
As there are only ca 1.700 objects only one person will import the data.
References
The dataset has proved to be lacking in quality regarding exact location and shape of the facilities. During the import, aerial imagery will be used to make adjustments. If no facility can be observed in the imagery, a proposed: prefix will be appended.
Workflow
- Download the following datasets from kart.fiskeridir.no:
- Akvakultur - lokaliteter - one node per facility
- NYTEK plassering/ytterpunkt - polygon describing shape of facility
- Biomasse - Current species of fish in facility
- Flate ihht. Akvakulturreg. - polygon describing bounds of the license
- Transform upper case names to lower case in Excel.
- Using the Conflation and Todo plugin in JOSM, manually work through all facilities:
- Merge the three first datasets and remove bad data from import files
- Adjust boundaries of the facility according to aerial imagery, using the last dataset as a background for guiding
- If a polygon does not exist for the facility, keep the single node
- Tag according to tables above
- Merge with existing objects in OSM and upload.
Steps 1-3 has already be completed.
Conflation
There are only 169 existing aquaculture objects in Norway, some of which are the individual circular cages. They will be merged with the new dataset using aerial images to determine which version is the most current.
QA
The aquaculture facilities may be checked versus the official Norwegian Nautical charts, which are available through default imagery in JOSM.
The following chart imagery may be used for QA: https://map0{switch:1,2,3,4}.eniro.no/geowebcache/service/tms1.0.0/nautical2x/{zoom}/{x}/{-y}.png (tracing not permitted, chart not 100% updated)
