Difference between revisions of "Beach berm"
From Coastal Wiki
Dronkers J (talk | contribs) |
Dronkers J (talk | contribs) |
||
| (2 intermediate revisions by the same user not shown) | |||
| Line 9: | Line 9: | ||
==Notes== | ==Notes== | ||
| + | * Beach berms are most pronounced on so-called reflective beaches (characteristics: steep slope, coarse sediment, subject to low-energy swell waves, intertidal zone almost absent). | ||
* There may be several beach berms and in some cases no berms. | * There may be several beach berms and in some cases no berms. | ||
| − | * Under normal conditions a beach berm is formed on the upper part of the [[#Beach face|beach face]], and over the [[#Backshore|backshore]] during | + | * Under normal conditions a beach berm is formed on the upper part of the [[#Beach face|beach face]], and over the [[#Backshore|backshore]] during storm events. |
* Berms can also form on the higher intertidal zone of a [[#Tidal flat|tidal flat]]; these berms are generally called "swash bars". | * Berms can also form on the higher intertidal zone of a [[#Tidal flat|tidal flat]]; these berms are generally called "swash bars". | ||
* Beach berms are sometimes artificially reinforced as coastal protection measure. | * Beach berms are sometimes artificially reinforced as coastal protection measure. | ||
| Line 17: | Line 18: | ||
==Related articles== | ==Related articles== | ||
:[[Beach face]] | :[[Beach face]] | ||
| + | :[[Swash]] | ||
| + | :[[Swash zone dynamics]] | ||
:[[Nearshore sandbars]] | :[[Nearshore sandbars]] | ||
:[[Runnel]] | :[[Runnel]] | ||
:[[Definitions of coastal terms]] | :[[Definitions of coastal terms]] | ||
Latest revision as of 12:38, 12 January 2025
Definition of Beach berm:
A beach berm is a nearly horizontal shore parallel ridge formed on the beach due to the landward transport of the coarsest fraction of the beach material by the wave uprush (swash).
This is the common definition for Beach berm, other definitions can be discussed in the article
|
Notes
- Beach berms are most pronounced on so-called reflective beaches (characteristics: steep slope, coarse sediment, subject to low-energy swell waves, intertidal zone almost absent).
- There may be several beach berms and in some cases no berms.
- Under normal conditions a beach berm is formed on the upper part of the beach face, and over the backshore during storm events.
- Berms can also form on the higher intertidal zone of a tidal flat; these berms are generally called "swash bars".
- Beach berms are sometimes artificially reinforced as coastal protection measure.
