Thumbnail Image

Theses

Browse

20181
Reset filters
Subject: Agricultural Meteorology × Author: Khudan, Surya × End date: 2019 × Start date: 2010 × Type: Thesis × Thesis Type: M.Sc ×
Reset filters

Search Results

Now showing 1 - 1 of 1
  • Thumbnail Image
    ThesisItemOpen Access
    Agroclimatic characterization of Trinidad and Tobago
    (G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand), 2018-08) Khudan, Surya; Murty, N.S.
    The present study was conducted to analyse the agroclimatic characteristics of Trinidad and Tobago based on 35 years of daily weather data from 1981 to 2015using the Weathercock 15 software developed by CRIDA, Hyderabad to analyse the climate of Trinidad and Tobago by determining climatic normals, rainfall trends, rainfall probabilities, drought conditions, temperature trends, potential evapotranspiration rates, length of growing period and normal water balance studies. The climate of the station experienced an increasing rainfall and temperature trend at Piarco, with Crown Point having increased rainfall but steady temperatures. The number of rainy days was more during the wet season (June to December) than the dry season (January to May) with Piarco receiving more than Crown Point as a result of increased day time convections over Piarco. Seasonally, higher probabilities of larger amounts of rainfall were found in the wet season for both stations coinciding with the peak of hurricane season in October and November allowing for crop cultivation. Initial and conditional probabilities for both stations proved that initial values of a wet week were over 75% for 10mm and 20mm of rainfall during 22nd to 1st SMW which is suitable for fulfil crop water requirement. While agricultural droughts were non-existent for both stations, mild meteorological droughts were observed while there was no presence of moderate or severe droughts. Heatwaves and cold waves are not experienced at these two stations as the temperatures do not exceed 400C and drop below 00C. The length of growing season spans throughout the year for both stations as rainfall is sufficient to keep soil moisture levels at suitable levels to allow for sustainable crop production with supplemental irrigation at Crown Point during the dry season. Thornthwaite’s classification indicates that the Piarco belongs to moist sub humid and Crown Point to dry subhumid climates. The normal water balance for Piarco and Crown Point indicated that good and varied agricultural crops can be grown throughout the year and can support two to three vegetable crops in a year with Crown Point utilizing protected irrigation during the dry season.