MMO1044 spatial confidence in the essential fish habitat modelled outputs
This data shows the relative confidence on the EFH model prediction calculated by combining information on the statistical model predictive ability, confidence assigned to the input data layers used for model implementation and relative importance of environmental input data layers as determined by the statistical model. Confidence is assigned to each species/life stage model (ConfScore is the normalised value of confidence, ranging between 0 and 1; ConfCat is the relative confidence category used to identify relative confidence levels, from lower to higher).
dataset
http://s3-eu-west-1.amazonaws.com/mmo-data/MMO_Data/datagovuk/MMO1044_EFH_Confidence_Scores.zip
description: A link to the web service or dataset
http://s3-eu-west-1.amazonaws.com/mmo-data/MMO_Data/datagovuk/MMO1044_EFH_Confidence_Scores.zip
description: A link to the general host site
MMO900028
eng
urn:ogc:def:crs:EPSG::0
biota
oceans
revision
2008-01-06
revision
2009-11-16
-3.5932
1.7283
51.1625
49.8742
2016-05-20
2016-09-14
publication
2016-05-20
creation
2016-05-20
revision
2016-05-20
asNeeded
A confidence value was associated with each map output based on the combination of the confidence in the elements and processes that determined the map. These were identified as: • Cm: the confidence in the modelling process for the species/life stage, as indicated by the specific model predictive ability • Cf: the confidence in the fish survey data used to calibrate the model, with reference to the species/life stage considered in the model (see Table 4 in the Final Report) • Cej: the confidence in each of the j-th environmental data layers used for the calibration and implementation of the EFH model for a species/life stage • rej: the ranked importance of each of the j-th environmental data layers in the model prediction of EFH (as defined by their hierarchy in the tree model) for a species/life stage. The confidence rating associated with the model predictive ability (Cm) was weighted by the average confidence rating associated with the model input data (Ci) using the following formula: C=Cm ? Ci/3 where Ci = 1/2 [Cf + (?j(Cej?rej) / (?jrej)] Please see page 29 of the technical annex to view the formatted formula. The resulting total confidence rating was associated with a confidence level following the criterion defined in Tables 2-5 of the Technical Annex. The calculation of confidence values for each grid cells were carried out in Excel and the results imported in GIS environment (See data processing template MMO1044_Data_Processing_4_EFH Output confidence for details)
Open Government Licence. Acknowledgement of Marine Management Organisation as source is required.
No limitations on access, however copyright should be used at all times.
Data/GIS Officer
Marine Management Organisation
originator
Data/GIS Officer
Marine Management Organisation
custodian
Data/GIS Officer
Marine Management Organisation
pointOfContact
2016-09-14