Introductory Agro meteorology and climate change

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Subhasisha Praharaj

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Course Name : Introductory Agro meteorology and climate change

 

Code(Credit) : ASAG1202(1-1-0)

 

Course Objectives

  • To study about different climatic factors affecting crop growth and development
  • Study about different weather aberrations
  • Study about climate change, it's cause and impacts

Learning Outcomes

  • Students will be able to know the impact of weather and climate on agricultural production system

Course Syllabus

Theory
Earth atmosphere- its composition, extent and structure; Atmospheric weather variables; Atmospheric pressure, its variation with height; Wind, types of wind, daily and seasonal variation of wind speed, cyclone, anticyclone, land breeze and sea breeze; Nature and properties of solar radiation, solar constant, depletion of solar radiation, short wave, longwave and thermal radiation, net radiation, albedo; Atmospheric temperature, temperature inversion, lapse rate, daily and seasonal variations of temperature, vertical profile of temperature, Energy balance of earth; Atmospheric humidity, concept of saturation, vapor pressure, process of condensation, formation of dew, fog, mist, frost, cloud;
Precipitation, process of precipitation, types of precipitation such as rain, snow, sleet, and hail, cloud formation and classification; Artificial rainmaking. Monsoon- mechanism and importance in Indian agriculture, Weather hazards - drought, floods, frost, tropical cyclones and extreme weather conditions such as heat-wave and cold-wave.Agriculture and weather relations; Modifications of crop microclimate, climatic normals for crop and livestock production. Weather forecasting- types of weather forecast and their uses. Climate change, climatic variability, global warming, causes of climate change and its impact on regional and national Agriculture.
Practical:
Visit of Agrometeorological Observatory, site selection of observatory, exposure of instruments and weather data recording. Measurement of total, shortwave and longwave radiation, and its estimation using Planck’s intensity law.Measurement of albedo and sunshine duration, computation of Radiation
Intensity using BSS. Measurement of maximum and minimum air temperatures, its tabulation, trend and variation analysis.Measurement of soil temperature and computation of soil heat flux.Determination of vapor pressure and relative humidity.Determination of dew point temperature.Measurement of atmospheric pressure and analysis of atmospheric conditions.Measurement of wind speed and wind direction, preparation of windrose. Measurement,tabulation and analysis of rain.Measurement of open pan evaporation and evapotranspiration. Computation of PET and AET.
References
1. Radha Krishna Murthy, V. 2016. Principles and Practices of agricultural disaster management,
B.S. Publications, Koti, Hyderabad.
2. Reddy, S.R. 2014. Introduction to Agriculture and Agrometeorology. Kalyani Publishers,
Ludhiana, Punjab.
3. Radha Krishna Murthy, V. 2002. Basic Principles of Agricultural meteorology, B.S. Publications, Koti, Hyderabad.

Session Plan

Session 1

Earth atmosphere- its composition, extent and structure

AM L2

https://youtu.be/RBpLZAAU_sk

 

Session 2

Atmospheric weather variables,Atmospheric pressure and it's variation with height

atmospheric pressure

https://youtu.be/xJHJsA7bYGc

Session 3

Wind, types of wind, daily and seasonal variation of wind speed

https://youtu.be/W2lIUQc5RgQ

https://youtu.be/WXuGYSM2D8k

Session 5

Nature and properties of solar radiation, solar constant, depletion of solar radiation, short wave, long wave and thermal radiation, net radiation

solar radiation

https://youtu.be/nNzDXXUiqRs

Session 6

Atmospheric temperature, temperature inversion, lapse rate, daily and seasonal variations of temperature, vertical profile of temperature, Energy balance of earth

Air temperature

https://youtu.be/sDwfH7q0E94

Session 7

Atmospheric humidity, concept of saturation, vapor pressure, process of condensation

Humidity

https://youtu.be/SGHRz8wpj3E

Session 8

Precipitation, process of precipitation, types of precipitation such as rain, snow, sleet, and hail, cloud formation and classification, Artificial rainmaking.

cloud and precipitation

https://youtu.be/bU4z8ZiX_eA

Session 9

Precipitation, process of precipitation, types of precipitation such as rain, snow, sleet, and hail, cloud formation and classification, Artificial rainmaking.

cloud and precipitation

https://youtu.be/bU4z8ZiX_eA

Session 10

Monsoon- mechanism and importance in Indian agriculture

wind and monsoon

https://youtu.be/Fo8nlearLZQ

Session 11

Weather hazards - drought, floods, frost, tropical cyclones and extreme weather conditions such as heat-wave and cold-wave.Agriculture and weather relations; Modification of crop microclimate

cyclone,anti cyclone, land breeze and sea breeze

https://youtu.be/UKL9NIxLIIE

Session 13

Climate change, climatic variabilty, global warming, causes of climate change and it's impact on regional and national agriculture

climate change

https://youtu.be/G4H1N_yXBiA

Case Studies

Case Studies

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