1. 64
  2. Hydromorphology

Hydromorphology

Aquatic insect

Updated on 04/07/2018
Définition
Sens commun

Articulated invertebrate animal which have the characteristic of breathing through trachea. Some insects have become aquatic (representing 3% of insects) but have retained this aerial breathing.

Source
according to INRA

Coastal sedimentation

Updated on 26/10/2022
Définition
Sens commun
The process by which the shore gains on the sea by sediment accumulation (sand, in particular), their volume exceeding the capacity of waves and currents to move them.
Source
according to OFB

Sediment

Updated on 04/12/2018
Définition
Sens commun
Continental or marine deposit, which comes from alteration or disintegration of rocks and is transported by rivers, glaciers or winds. Sediments are differentiated by their mineralogical nature and size.
Source
according to the Encyclopaedic Dictionary of Biodiversity and Nature Conservation of 2017 and IOWater

Barrier beach

Updated on 04/12/2018
Définition
Sens commun
Sediment bar, mainly built by the waves, which is parallel or near the coastline and to which it is most often attached at one end. It separates the sea from a quieter coastal area, of the lagoon type, sheltered from the waves.
Source
according to the Encyclopaedic Dictionary of Biodiversity and Nature Conservation of 2017 and IOWater

Mud flat

Updated on 26/10/2022
Définition
Sens commun
Range of loose sediments (mud) deposited in an estuary, on a sea shore, or on the sea bed.
Source
according to OFB

Bioturbation

Updated on 04/12/2018
Définition
Sens commun
Restructuring of soils or aquatic sediments by living organisms present in these environments, such as earthworms and mud worms.
Source
according to CELF

Regional ecological coherence scheme

Updated on 25/02/2019
Définition
Sens technique

Framework Document elaborated in each metropolitan area, by the Regional Council and the regional prefect, in association with local stakeholders, locally developed the green and blue infrastructure. The Regional Ecological Coherence Scheme (SRCE) is to identify biodiversity reservoirs and ecological corridors that link them. It includes an action plan to ensure the preservation and restore ecological continuity identified while taking into account land use planning issues and human activities. The SRCE must also be compatible with the planning documents, such as territorial coherence…

Source
according to IOWater

Sedimentory basin

Updated on 25/02/2019
Définition
Sens commun

Portion of the Earth's crust on which has been deposited, or still is depositing, many layers of sediment, produced by the alteration of preexisting rocks. Over time, significant accumulation of sediments causes the depression of the deposition zone, and allows the addition of new layers, creating a sedimentary basin.

Source
according to CNRS

Charges/fees for obstacle on rivers

Updated on 06/09/2018
Définition
Sens commun
Amount due by any owner of a structure that constitutes a continuous obstacle between the two banks of a watercourse (except for structures forming part of hydroelectric installations subject to the fee for water resource abstraction, or where the height difference is less than 5 m, or located on rivers whose average interannual flow is less than 0.3 m3/s at the right of the obstacle).
Source
according to the Ministry of the Environment, the Court of Auditors and Water Agencies

Hydrodynamics

Updated on 06/09/2018
Définition
Sens commun
Branch of fluid mechanics which concerns the motion of fluids, whether liquid or gaseous. Hydrodynamics focuses on the properties of fluids, including velocity, viscosity, density, pressure, and temperature, as a function of space and time.
Source
according to the Larousse dictionary