Overview

glaciation

Return to overview »

You are looking at 1-20 of 46 entries

  • Type: Overview Page x
clear all

View:

Amersfoort

Amersfoort  

An interstadial during the last glaciation of the Netherlands (somewhere between 60 000 and 70 000 years ago). The July temperature (based on floral evidence) was perhaps 15–20°C.
anvil cloud

anvil cloud  

The common name for a cumulonimbus that has reached the capillatus stage (i.e. has undergone glaciation), particularly if it has spread out at an inversion (such as the tropopause) to become ...
calvus

calvus  

From the Latin calvus meaning ‘bald’ or ‘stripped’; a species of cumulonimbus cloud in which upper protrusions form a more amorphous mass than appears from the cumuliform outlines. See also cloud ...
climate change

climate change  

Reference type:
Overview Page
Subject:
History
The change in world climate patterns over time. Such change has always occurred, both on a large scale since the formation of the earth and on a smaller scale within the span of human history. For ...
Climate Reconstruction

Climate Reconstruction  

Our knowledge of climate history prior to the availability of instrumental records comes from two main sources: (1) historical observations, where information on past climatic conditions is contained ...
climatic change

climatic change  

During the last 55 million years the earth has been cooling; during the last million years there have been alternating glacials and interglacials. See little ice age.External causes of climatic ...
cloud seeding

cloud seeding  

Any technique of inducing rain from a cloud, usually by dropping on it crystals of dry ice (frozen CO2), or silver nitrate, as condensation nuclei. Ćurić et al. (2007) Met. & Atmos. Phys. 95, 3–4 ...
congestus

congestus  

From the Latin congestus meaning ‘piled up’, a species of cumulus cloud with deep bulging form and an upper part having a cauliflower-like appearance. See also cloud classification.
cryosphere

cryosphere  

That part of the Earth where the surface is frozen, comprising the area covered by ice sheets and glaciers, permafrost regions, and sea areas covered by ice, at least in winter.
cumulonimbus

cumulonimbus  

A low-based, rain-bearing cumulus cloud, dark grey at the base and white at the crown, which spreads into an anvil shape, as it is levelled by strong upper-air winds.
deglaciation

deglaciation  

The process by which glaciers thin and recede—through climatic change (Turner et al. (2005) Geografiska A 87, 363), or by increased calving when sea levels rise. Deglaciation is generally accompanied ...
dissipation trail

dissipation trail  

Phenomenon of cloud evaporation caused by exhaust heat in the rear of an aircraft flight path. See also condensation trail.
dust storm

dust storm  

A strong wind that blows fine dust across the surface of a desert, which can significantly reduce visibility and adversely affect communications and agriculture. Contrast sand storm. See also haboob.
Earth Motions

Earth Motions  

The motions of Earth, particularly with respect to the Sun, are a fundamental control of many of the environmental changes that have taken place through geologic time. The Earth rotates ...
fallstreak hole

fallstreak hole  

A clear, approximately circular or elliptical patch in thin stratiform cloud (particularly altocumulus or cirrocumulus). If glaciation is initiated over a relatively restricted area, the ice crystals ...
generating head

generating head  

A small clump or tuft of cloud in which glaciation is occurring, creating precipitation. Usually small cirrocumulus or altocumulus, particularly of the floccus species, with trailing virga. Present, ...
geomorphic process

geomorphic process  

Processes that change the form or shape of the surface of the Earth, including desertification, erosion, fluvial processes, glaciation, and weathering.
glacial period

glacial period  

A general term used to describe either a glacial stage (e.g. Devensian) or an indeterminate period of glaciation.
glacioeustasy

glacioeustasy  

The theory that sea levels rise and fall in response to the melting of ice during interglacials and the accumulation of ice during glaciations. A major glacioeustatic oscillation has an amplitude of ...
Günz

Günz  

Reference type:
Overview Page
The first of four glacial episodes (1.8–1.65 Ma ago) established by A. Penck and E. Bruckner in 1909. It is named after an Alpine river, and so the term is really applicable only to its type area, ...

View: