Details of REMP project - Rift valley geomorphic feature


Dataset identification

Title of datasetREMP project - Rift valley geomorphic feature
Narrative summary of datasetThe rift valley geomorphic feature layer represents the spatial extent of the rift valleys of the worlds oceans based on interpretation of the SRTM30 plus v7 global bathymetry model. The layer is one of the 25 layers that make up the global seafloor geomorphic features map (Harris 2014). Rift valleys were mapped as separate features in the present study where they are clearly evident in SRTM30_PLUS bathymetric data. Rift valleys are confined to the central axis of mid-ocean spreading ridges; they are elongate, local depressions flanked generally on both sides by ridges (Macdonald, 2001). They were mapped by hand based on 100 m contours. This data set has been used as one of the data inputs in the Atlantic REMP project. This project, funded by the European Union, worked together with stakeholders to produce a draft Regional Environmental Management Plan (REMP) for the Area in the North Atlantic, with a focus on the polymetallic sulphide deposits of the Mid-Atlantic Ridge which are of interest for deep-sea mining. There was close collaboration with the International Seabed Authority (ISA) and a consortium of scientific organisations. Marine data from multiple data services underpinned the environmental management plan development. A selection of the data sets is included in EMODnet Ingestion for wider distribution.
Start date2014-01-01
End date2100-01-01

Responsible organisations

CountryUnited States
Organisation nameDuke University
Role of organisationPublisher
Organisation nameDuke University
Role of organisationDataset Holding Organisation
How to citeHarris PT, Macmillan-Lawler M, Rupp J, Baker EK (2014) Geomorphology of the oceans. Marine Geology 352:4–24.

Dataset availability

Original dataset download link
Dataset formatGeographic Information System
Public accessNo limitations
License for useCC-BY 4.0


Latitude north boundary89
Longitude east boundary180
Latitude south boundary-89
Longitude west boundary-180
Sea areaWorld

Data types, collection and processing

Observation typeGravity, magnetics and bathymetry
Administration and dimensions
ParameterHorizontal spatial co-ordinates

Process information

Submitting organisationDuke University
Submission identifier (UUID)789b1973-b70f-4210-ba45-a63a26bdc7d6
Date of dataset creation2014-01-01
Date of metadata creation2021-09-08
Date of metadata latest revision2021-09-12
Date of publishing2021-09-14
Processing data centreHellenic Centre for Marine Research, Hellenic National Oceanographic Data Centre
Summary record-ID852