drainage density

См. также в других словарях:

• Drainage density — is the total length of all the streams and rivers in a drainage basin divided by the total area of the drainage basin. It is a measure of how well or how poorly a watershed is drained by stream channels. It is equal to the reciprocal of the… …   Wikipedia

• drainage density —    A ratio of total channel segments lengths cumulated for all orders to basin area [16] …   Lexicon of Cave and Karst Terminology

• Acid mine drainage — Yellow boy in a stream receiving acid drainage from surface coal mining. Acid mine drainage (AMD), or acid rock drainage (ARD), refers to the outflow of acidic water from (usually abandoned) metal mines or coal mines. However, other areas where… …   Wikipedia

• Steam assisted gravity drainage — (SAGD) is an enhanced oil recovery technology for producing heavy crude oil and bitumen. It is an advanced form of steam stimulation in which a pair of horizontal wells is drilled into the oil reservoir, one a few metres above the other. Low… …   Wikipedia

• aerial drainage — noun : the downslope flow of surface air caused by its relatively high density produced by contact cooling, especially prevalent on still clear nights in hilly or mountainous terrain …   Useful english dictionary

• river — river1 riverless, adj. riverlike, adj. /riv euhr/, n. 1. a natural stream of water of fairly large size flowing in a definite course or channel or series of diverging and converging channels. 2. a similar stream of something other than water: a… …   Universalium

• valley — valleylike, adj. /val ee/, n., pl. valleys. 1. an elongated depression between uplands, hills, or mountains, esp. one following the course of a stream. 2. an extensive, more or less flat, and relatively low region drained by a great river system …   Universalium

• Hydrograph — There are two meanings for hydrographs both coming from hydro meaning water, and graph meaning chart. A hydrograph plots the discharge of a river as a function of time. This activity can be in response to episodal event such as a… …   Wikipedia

• Coast Range (EPA ecoregion) — This article is about the ecoregion designated by the EPA. For the mountains in California, see California Coast Ranges. For the mountains in Oregon, see Oregon Coast Range. For the mountains in Washington, see Olympic Mountains. Level III… …   Wikipedia

• Robert E. Horton — Infobox Scientist name = Robert Elmer Horton box width = image width =150px caption = Robert Elmer Horton birth date = May 18, 1875 birth place = Parma, Michigan death date = April 22, 1945 death place = residence = citizenship = nationality =… …   Wikipedia

• Coast Range (ecoregion) — The Coast Range ecoregion is a Level III ecoregion designated by the Environmental Protection Agency (EPA) in the U.S. states of Washington, Oregon, and California. It stretches along the Pacific Coast from the tip of the Olympic Peninsula in the …   Wikipedia