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Tuesday, July 28, 2020 | History

2 edition of Evapotranspiration in the tropics found in the catalog.

Evapotranspiration in the tropics

Edmond F. Schulz

Evapotranspiration in the tropics

a paper presented to the 51st annual meeting, American Geophysical Union ... Washington, D.C., USA, 20-24 April, 1970

by Edmond F. Schulz

  • 286 Want to read
  • 15 Currently reading

Published by Asian Institute of Technology in Bangkok .
Written in English

    Places:
  • Thailand.
    • Subjects:
    • Evapotranspiration -- Thailand.

    • Edition Notes

      Bibliography: leaf 22.

      Statementby E. F. Schulz and Aolad Hossain.
      SeriesTechnical note - Asian Institute of Technology ; no. 32
      ContributionsHossain, Aolad, joint author.
      Classifications
      LC ClassificationsQC915.7.T5 S38
      The Physical Object
      Pagination24 leaves :
      Number of Pages24
      ID Numbers
      Open LibraryOL4932443M
      LC Control Number76359259

        Evapotranspiration is a very complex phenomenon, comprising different aspects and processes (hydrological, meteorological, physiological, soil, plant and others). Farmers, agriculture advisers, extension services, hydrologists, agrometeorologists, water management specialists and many others are facing the problem of evapotranspiration. This book is .   [1] The seasonal pattern of evapotranspiration (expressed as latent heat flux Q e) for a 28‐ to 30‐m‐tall tropical transitional (ecotonal) forest was quantified over an annual cycle using eddy covariance measurement and micrometeorological estimation study was conducted near the city of Sinop, in northern Mato Grosso, Brazil, which is located within .

      Within this chapter relative air humidity, evaporation, transpiration, evapotranspiration, hydrologic cycle and water balance are discussed for the Tropics. In general, atmospheric water is of high climatological importance due to its capacity to control precipitation as well as to its influence on absorption and reflection of solar and.   The data from GRACE satellites, launched in March to accurately measure the Earth's gravity field at ~30 day intervals with a spatial resolution of km, can be used to estimate TWSAs over sufficiently large regions (Tapley et al ).TWSA is an anomaly (i.e. monthly deviations from a longer-term mean) of TWS stored above and underneath the .

      Evapotranspiration is an important component for water balance as well as it has great influences on runoff and other processes in hydrologic cycle in a catchment. Usually, evapotranspiration studies in tropical forests show values ranging, on average, from to mm year −1. Regarding Atlantic Rainforest in São Paulo State, [ 41 ] found annual average of mm year −1 for evapotranspiration, ~44% lower than the result found in .


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Evapotranspiration in the tropics by Edmond F. Schulz Download PDF EPUB FB2

This book covers topics on the basic models, assessments, and techniques to calculate evapotranspiration (ET) for practical applications in agriculture, forestry, and urban science. This simple and thorough guide provides the information and techniques necessary to develop, manage, interpret, and apply evapotranspiration ET data to practical applicCited by: 7.

This book covers topics on the basic models, assessments, and techniques to calculate evapotranspiration (ET) for practical applications in agriculture, forestry, and urban science. This simple and thorough guide provides the information and techniques necessary to develop, manage, interpret, and ap.

Here, Evapotranspiration in the tropics book is defined as the water lost to the atmosphere from the ground surface, evaporation from the capillary fringe of the groundwater table, and the transpiration of groundwater by plants whose roots tap the capillary fringe of the groundwater table.

The banner at the top of this page offers an even more simple definition. Evapotranspiration. Evapotranspiration (E) is defined as actual evapotranspiration (Ea)—the actual rate at which water vapor is returned to the atmosphere from the ground and by plants and potential evapotranspiration (Ep)—the water vapor flux under ideal conditions of complete ground cover by plants, uniform plant height and leaf coverage, and an adequate water supply.

‘Tropical forests also maintain a balance of species by providing pest control services, and they regulate surface temperatures and local and regional climates through the process of evapotranspiration.’ ‘Moreover, fewer trees in cities reduce shading and evapotranspiration, in which plants use up heat by, essentially, sweating.’.

Distinctions are made (Figure 4) between reference crop evapotranspiration (ET o), crop evapotranspiration under standard conditions (ET c) and crop evapotranspiration under non-standard conditions (ET c adj).ET o is a climatic parameter expressing the evaporation power of the atmosphere.

ET c refers to the evapotranspiration from excellently managed, large, well. The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.

Highlights Potential evapotranspiration (PET) is low on leeward Hawai‘i Island. In this tropical region without water stress, PET is higher in pasture than in forest. Aerodynamic and stomatal control of PET differ for the two vegetation types. Land use changes such as increased cattle grazing may impact rates of PET.

Forest conversion in tropical montane. The conversion from primary forest to agriculture drives widespread changes that have the potential to modify the hydroclimatology of the Xingu River Basin.

Moreover, climate impacts over eastern Amazonia have been strongly related to pasture and soybean expansion. This study carries out a remote-sensing, spatial-temporal approach to analyze inter- and intra-annual.

Most models evaluated by the Intergovernmental Panel for Climate change estimate projected increases in temperature and precipitation with rising atmospheric CO2 levels. Researchers have suggested that increases in CO2 and associated increases in temperature and precipitation may stimulate vegetation growth and increase evapotranspiration (ET), which acts as a cooling.

Over land, annual evapotranspiration is highest in the tropics and generally decreases towards the poles. Geographic patterns of evapotranspiration are explained by Budyko's analysis of the control of evapotranspiration by net radiation and precipitation.

Assuming that moisture is available, evapotranspiration is dependent primarily on the availability of solar energy to vaporize water. Evapotranspiration therefore varies with latitude, season of year, time of day, and cloud cover.

Most of the evapotranspiration of water on the Earth's surface occurs in the subtropical oceans. Evapotranspiration, Loss of water from the soil both by evaporation from the soil surface and by transpiration from the leaves of the plants growing on it.

Factors that affect the rate of evapotranspiration include the amount of solar radiation, atmospheric vapor pressure, temperature, wind, and. Observations are separated by location as follows: b, oceanic extra-tropics (poleward of 30°); c, oceanic tropics (Equatorward of 20°); and d, tropical continental areas.

Observations are for. Evapotranspiration (ET) is the sum of evaporation and transpiration, and is a key component in effective irrigation. Toll-free: [email protected] > Activate. Evapotranspiration is an important process in the water cycle because it is responsible for 15% of the atmosphere’s water vapor.

Without that input of water vapor, clouds couldn’t form and precipitation would never fall. Evapotranspiration is the combined name for the processes of evaporation and transpiration.

The book describes how evapotranspiration plays an important role in the hydrologic cycle and our daily life. Authors have applied mechanics of the tropics; and agroclimatology. Some of Dr. Harmsen's water management related publications and presentation can be found at.

Evapotranspiration in the Tropics Astudy was made of monthly rainfall and runoff over asquare kilometer watershed in northern Thailand. The function of the watershed in producing the runoff hydrograph was simulated using a type of Stanford Watershed Model adapted for operation with an IBM digital computer.

ABSTRACT: Evapotranspiration (ET) is an important part of the water cycle. This study reports on the monsoonal influence on the temporal variation in evapotranspiration of an extremely water conservative and salinity stressed tropical mangrove forest at the land-ocean boundary of northeast coast of India.

Tropical trees can extract deep soil water and pump it back to the atmosphere through a process called evapotranspiration. As a result, 25–56% of the rainfall in these regions can be recycled. Click on the title to browse this list of Accepted articles.

These are the accepted, unedited articles published online and citable. The final edited and typeset Version of .J Researchers estimate evapotranspiration for the Amazon basin using a water budget approach and show complex seasonal cycle and long-term changes in forest function.

The Science We combined satellite measurements of rainfall and gravity anomalies with Amazon river flow data to derive a seasonally-resolved estimate of evapotranspiration for the entire. Evapotranspiration is higher at locations close to the Equator.

If the area receives little rainfall, then evapotranspiration can reach % of the total precipitation as in the southwestern United States. How do Plants and Animals Cope with Evapotranspiration? Plants possess the ability to monitor the amount of water lost by transpiration.