Scottish legislation (Section 17) of the Flood Risk Management (Scotland) Act 2009 dictates that records of culverts must be created and maintained. Specifically: (1) Every local authority must prepare a map which shows (or more than one map which, taken together, show) relevant bodies of water and sustainable urban drainage systems in its area. (2) Each map must - (a) be prepared by such date as the Scottish Ministers may direct, (b) be prepared at a scale that the authority considers most appropriate, and (c) contain such information and be in such form as the Scottish Ministers may specify in regulations. (3) A local authority must, from time to time, review and where appropriate update the map (or maps) prepared for its area under subsection (1). (4) A local authority must make available for public inspection the map (or maps) prepared under this section for the time being applicable to its area. (5) In this section and section 18 - “relevant body of water” - (a) means - (i) a body of surface water other than a stretch of coastal water, or (ii) a body of underground water forming part of a watercourse (but not including a watercourse which is wholly underground), but (b) does not include sewers and drains which drain into sewers, “sustainable urban drainage system” has the meaning given in section 59(1) of the Sewerage (Scotland) Act 1968 (c.47). Most Local Authorities have contributed (natural) culvert data to the new OS MasterMap Water Network Layer either through providing data to the Scottish Government or through the James Hutton Institute. As this data is now live, a mechanism for managing/maintaining/updating this data needs to be put in place. SCOTS (Society of Chief Officers for Transportation in Scotland) have approved for this dataset to be managed by the Spatial Hub and any amended data can be uploaded (and potentially downloaded) before being shared with OSMA members and the OS. We have initially created a point and line data layer representing the data we have been sent by some LAs. However, we really need line data in order for it to be merged into the OS MasterMap Water Network Layer data in due course. The LA "culverts" data as included in the OS MasterMap Water Network Layer is also available for LAs to download and use as part of this dataset
Blue-Green Algae Warning Notices for Lochs within The Highland Council Area
This dataset provides assessment of over 5600 watercourse along the west coast of Scotland for their nationally/internationally important water-loving oceanic bryophyte (moss and liverwort) communities. The approach is applied in line with Scottish Natural Heritage’s 'Planning for Development - Service Statement'. The aim of the database is therefore to help users take account of Europe's most important watercourses for these species before selecting sites for potential hydro development. Individual watercourses, or sites that contain multiple watercourses, have been assessed for either their known (categories A-C) or potential (categories D-E) importance. The category descriptions provide clear guidance as to whether a watercourse is known to hold bryophytes or likely to be of low bryological importance, and whether further survey is recommended. This assessment only considers the impact of water abstraction on water-loving oceanic bryophytes and additional consideration should be given to direct impacts of construction on important bryophyte habitats (e.g. springs/flushes, ancient woodland, deadwood, bogs). The data was derived from the database saved in eRDMS B796293.The full methodology is described in SNH Commissioned Report 449b: Bryological assessment for hydroelectric schemes in the West Highlands (2nd edition).
Salmon Rivers in Scotland (2008) digital data produced by Scottish Government Marine Scotland Science with information from Fisheries Trusts and other sources.
Salmon Fishery Statistical Region boundaries, used by Scottish Government Marine Scotland for reporting annual statistics obtained from salmon catch returns made by the owners/occupiers/agents of salmon fisheries.(Salmon Fishery Statistical Districts amalgamated into Regions)
These layers are the outputs of research which developed a national river temperature model for Scotland capable of predicting both daily maximum river temperature and sensitivity to climate change. The layers show the following: summer_max_tw_2015_16 – Predictions of maximum daily river temperatures for the hottest day between July 2015 and June 2016. summer_max_tw_2003 – Predictions of maximum daily river temperatures for the hottest year in the last 20 years (2003). summer_climate_change_sensitivity – Predictions of the change in river temperature that would result from a 1°C increase in air temperature. A fourth layer has been developed to combine the outputs from “summer_max_tw_2003” and “summer_climate_change_sensitivity” into a single layer that can be used to prioritise management where the relative importance of maximum temperature and temperature change are considered to be equal. This was achieved by (1) dividing the predictions of ‘summer_max_tw_2003’ and ‘summer_climate_change_sensitivity’ into 5 equal categories between the minimum and maximum observed values (2) assigning these categories a value ranging from 1 (the hottest / most sensitive rivers) to 5 (the coolest / least sensitive rivers) (3) sum the rankings (-1) to produce an overall priority ranking (1:9) where rivers ranked as 1 are the highest priority for management (i.e. high river temperature and high climate sensitivity) and 9 the lowest. Management_Priority_Layer – Management priority on a scale of 1:9 where 1 is the highest priority (i.e. high river temperature and high climate sensitivity) and 9 the lowest
Inventory of renewable energy schemes in Argyll and Bute