WIO Symphony (Nairobi Convention)

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100 datasets found

• Weighted longline - Demersal fishing with long-line baited hooks (weighted down to bottom) - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  Mean yearly fishing hours in each grid cell were calculated from the years 2012-2020, based on Global Fishing Watch data, for vessels registered as using set longlines. Kernel density modelling was then performed with a 50-km radius to remove noise. Known…

  Ocean Bottom Pressure JSONTIFF

• Underwater noise - Continuous noise (engines, cavitation) - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  Ship noise and exposure time were estimated from global AIS data 2020-2022 provided by HUB Ocean. The spreading of sound was calculated using the mean frequency and noise level for each ship class combined with a custom focal statistics filter which takes…

  Ocean sound JSONTIFF

• Temperature rise - Temperature rise, incl. heat waves, caused by climate change - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  Map of sea surface temperature trends over the period 1993 – 2014. Known limitations: Low resolution up-scaled to grid; anomalies may exist near irregular coastlines.

  Sea State JSONTIFF

• Submarine cables - Electromagnetic fields from power cables or communication lines - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  Data on telecommunication submarine cables were used, from Greg's Cable Map (Greg Mahlknecht) and Telegeography, and merged together. Then, a focal statistics spatial analysis was performed using a wedge-shaped neighborhood by summation of 20 pixels cell…

  Other JSONTIFF

• Storm surges - Climate change-induced extreme storm events - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  Map of 50-year return surge levels, in meters, computed from time series data available in the Climate Data Store, named Global sea level change time series from 1950 to 2050, derived from reanalysis and high-resolution CMIP6 climate projections. Known…

  Sea Surface Height JSONTIFF

• Sport fishing - Tourism-related fisheries - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  NA Known limitations: NA

  Fish abundance and distribution JSONTIFF

• Ship strike - Potential collision between ship and animal, when ships pass through area - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  Risk of ship strikes was estimated using global AIS data 2020-2022 provided by HUB Ocean. The data was divided into ship classes and summarized by ship time / year spent in each 1km gridcell. Ship time at anchor points was removed assuming vesselspeed at these…

  Other JSONTIFF

• Ship pollution - Operational spills, leaks and waste - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  Ship pollution was estimated using global AIS data 2020-2022 provided by HUB Ocean. The data was divided into ship classes and summarized by ship time / year spent in each 1km gridcell. Known limitations: Calculations are not taking ship speed into account.…

  Other JSONTIFF

• Shark control - Shark nets for beach protection - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  NA Known limitations: NA

  Fish abundance and distribution JSONTIFF

• Seismic surveys - Prospecting of seabed resources using impulsive sonars - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  Using seismic survey data from MapStand, seismic survey lines were converted to raster and given a linear weighting based on the frequency of the seismic survey. The output layer is scaled from 0-100. The dataset contains seismic surveys from the years 1969 to…

  Other JSONTIFF

• Seabed mining - Extraction of seabed minerals (not dredging) - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  NA Known limitations: NA

  Other JSONTIFF

• Sea level rise - Sea level rise and flooding related to climate change - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  The altimeter data is not corrected for the effect of the Glacial Isostatic Adjustment nor the TOPEX-A instrumental drift during the period 1993-1998. Known limitations: The altimeter data is not corrected for the effect of the Glacial Isostatic Adjustment nor…

  Sea Surface Height JSONTIFF

• Research sampling - Remotely operated vehicles, probes, sampling - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  NA Known limitations: NA

  Other JSONTIFF

• Renewable energy - Offshore windfarms, wavefarms, etc. - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  NA Known limitations: NA

  Sea State JSONTIFF

• Ports - Hard infrastructure, loss of beach, spills, turbidity - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  WFP data on port locations and size where buffered 20km, estimating impact in the zone based on port size. Known limitations: Some ports are missing data on size in the WFP dataset, and the layer needs to be updated with correct sizes.

  Particulate matter JSONTIFF

• Plastic litter - Macroplastic pollution from waste (plastic objects >5 mm) - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  A new global model of plastic pollution in the oceans and coastline, available as 60-km hexagon grids, was adjusted to the WIO Symphony 1-km grid. Data was available for a range of particle sizes, as particle mass or concentration and with predictions from…

  Marine debris JSONTIFF

• Piers and docks - Smaller harbors, docks, man-made piers - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  This layer was produced by using manually collected data provided by Be Geospatial AB. The collected points were separated within different coastal features. 5-km buffer zones were used for masking around piers, docks and small port features to extract Total…

  Other JSONTIFF

• Pelagic trawl - Commercial fishing with mid-water trawl - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  NA Known limitations: NA

  Fish abundance and distribution JSONTIFF

• Pelagic seine - Commercial purse seine for open water (e.g. catching mackerel, tuna) - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  Mean yearly fishing hours in each grid cell were calculated from the years 2012-2020, based on Global Fishing Watch data, for vessels registered as using tuna purse seines. Kernel density modelling was then performed with a 200-km radius to remove noise. Known…

  Fish abundance and distribution JSONTIFF

• Pelagic gillnet - Commercial fishing using gillnets floating close to the surface - pressure layer from the WIO Symphony tool

  WIO Symphony (Nairobi Convention)

  NA Known limitations: NA

  Fish abundance and distribution JSONTIFF