Last edited by Arashile
Tuesday, May 5, 2020 | History

1 edition of Cold air drainage in forest openings found in the catalog.

Cold air drainage in forest openings

Allan J. West

Cold air drainage in forest openings

by Allan J. West

  • 300 Want to read
  • 2 Currently reading

Published by California Forest and Range Experiment Station in Berkeley, Calif .
Written in English

    Subjects:
  • Snow,
  • Analysis,
  • Air

  • Edition Notes

    StatementAllan J. West
    SeriesResearch note / California Forest and Range Experiment Station -- no. 180, Research note (California Forest and Range Experiment Station) -- no. 180.
    ContributionsUnited States. Forest Service, Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.), California Forest and Range Experiment Station
    The Physical Object
    Pagination6 p. :
    ID Numbers
    Open LibraryOL25584695M
    OCLC/WorldCa73175249

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Cold air drainage in forest openings by Allan J. West Download PDF EPUB FB2

Cold air drainage. Cold air is denser than warm air, so it flows downhill and accumulates in low spots much like water (Figure ).

Therefore, one should avoid low-lying, cold spots unless adequate cost-effective, active protection methods are included in the long-term management strategy. This is important on both a regional and farm scale.

drainage wind Cold-air-runoff winds that are produced when air in contact with terrain surfaces is cooled and flows downslope and/or downvalley. This generic term is often used to indicate aggregate downslope (katabatic) and downvalley flows, when it is difficult to distinguish between the two.

(ASTER) to infer the patterns of cold air drainage in an Amazonian tropical forest. The meteorological tower was located on a flat plateau that sloped gently to the southwest. The vertical profile from 0 to 64 m above ground level was divisible into two air parcels at night: a warm, low CO 2, upper parcel and a cool, high CO 2, lower parcel.

Authors: Novick, Kimberly A.; Oishi, Andrew C.; Miniat, Chelcy Ford Publication Year: Publication Series: Scientific Journal (JRNL) Source: Global Change Biology DOI: /gcb Abstract.

In mountainous areas, cold air drainage from high to low elevations has pronounced effects on local temperature, which is a critical driver of many ecosystem processes, including carbon uptake and Cited by: By diverting cold air drainage around a home, for example, a few dollars each year may be saved in heating costs.

And in the right location, controlling cold air drainage toward the home could funnel cooler air around it and reduce the summer air-conditioning bill. Learn More From These Relevant Books Chosen by The Weather Doctor. Schaefer. A weather phenomenon called cold air flow or cold air drainage makes Eugene-Springfield and other valley communities vulnerable to smoke from forest fires in the Cascade foothills and Cascade Range.

Heavy haze becoming cross to bear. In this video, upslope flow quickly yields to downslope drainage of about 1 m/s down a gentle slope. With sufficiently weak regional flow, most of the Earth's surface may at times experience cold air drainage and formation of cold air pools in low lying areas.

With weak regional flow. Cold air drainage flows subsidize montane valley ecosystem productivity KIMBERLY A. NOVICK1, A. CHRISTOPHER OISHI2 andCHELCY FORD MINIAT2 1School of Public and Environmental Affairs, Indiana University – Bloomington, N. Walnut Grove Avenue, Bloomington, INUSA, 2USDA Forest Service – Southern Research Station, Coweeta Hydrologic Laboratory, Coweeta Lab Cited by:   This paper reviews results of recent observations on the thermal belt, cold air drainage and cold air lake, which are striking in local climatic phenomena in mountain areas.

The height (A) of the warmer part, the thermal belt, of the mountain slopes changes with time from early evening, midnight to early morning and also seasonally and differs according to the velocity of the upper general Cited by: Persistent Cold Air Drainage and Modeled Nocturnal Leaf Water Potential in Complex Forested Mountainous Terrain Lin Gray, Jason A.

Hubbart, Kathleen Kavanagh, Timothy E. Link, Robert Pangle University of Idaho, Moscow Idaho, USA. Introduction Study Objectives Methods 0 10 20 30 40 50 60 Time ELR (o C) Portable Air Conditioner Is it too hot in your house.

We have various solutions to remedy the situation. Window Air Conditioners. Ducted and Ductless Heat Pump. Contact Information SUNRISE TRADEX CORP.Bernard Pilon. St-Mathieu-de-Beloeil (QC) J3G 4S5 1. Spruce-fir forest at the upper timberline of Roaring Fork in the Sawatch Range, Colorado.

(Photo: U.S. Geological Survey.) ClimateThe climate is a temperate semiarid steppe regime with average annual temperatures ranging from 35 to 45F (2 to 7C) in most of the region, but reaching 50F (10C) in.

To backpack at Barker Valley, you will need to obtain a permit from Cleveland National Forest. Backpacking is at its best during late spring when the river has a healthy flow of water and the weather is not too cold. It should also be noted that Barker Valley is famous for cold air drainage.

Frost cracks are axial openings in a stem that may penetrate radially some distance into the wood. They may spiral somewhat, like lightning scars, presumably following the grain of the wood.

According to Boyce [2], frost cracks are formed during the dormant season, when. NC Plumbing Code appliances which are required to discharge to the drainage system through an air gap. The following type fixtures fall within the classification of indirect liquid waste In or on structures where openings have been made in walls, floors or ceilings for the passage of pipes, such openings shall be closed and File Size: KB.

Equivalent Biometric Vegetation Type: This RVC represents a single Biometric type - “Wet tussock grasslands of cold air drainage areas of the tablelands”. Distinguishing Features: Restricted to frost-hollows of the high elevation parts of the New England Tablelands, this RVC is a true tussock grassland dominated by Tussock Size: KB.

Harrison-Crawford State Forest lies in the central and extreme southern part of the state, bordering the Ohio River. Established inthe forest contains ab acres of rugged hardwood forest in western Harrison and eastern Crawford counties.

This working forest is a favorite destination. Cold air drainage Any low lying path along a landscape through which denser cold air travels. Usually an element that pulses in and out of existence over a day, month, year. Highly related to climate and aspect of the landform. Cold hollow/pocket A depression in which air flows into and settles.

Often the coldest and lowest place in a landscape. Cold-air drainage and ponding were parameterised according to Laughlin and Kalma (), after resampling the DEM to 3 m pixels. In this way, the percentage of pixels potentially contributing cold air via drainage to the centre of a 9×9 pixel window was calculated, representing the nearby catchment area for each pixel in the by:   How does forced air heating work.

Forced air systems are the most common home heating option, and often runs off natural gas, propane or oil. The system takes cold air in through a return vent to the furnace where the air is heated by burning fuel. The air is then sent back through additional ducts using a blower and dispersed throughout a.

Openings in buildings. A Folding windows at the Embassy Court apartment house, Brighton (GB)Welles Coates A Stone sliding shutter as a closable opening, house in Stein, Kraichgau (D.Figure 9.

Natural ventilation construction features include high and low openings, some of which are open year-round. Larger openings provide hot weather air movement. In addition to the permanent openings for cold weather, another set of large openings allow cooling breezes to enter the stable during warmer weather (Figure 9).Edited and published by: The Society of Agricultural Meteorology of Japan Produced and listed by: Nishimura Toshado Co., Ltd.,Cited by: 3.