ESTIMATION OF REFERENCE EVAPOTRANSPIRION USING A USER FRIENDLY DECISION SUPPORT SYSTEM: DSS_ET IN WESTERN UNDULATING ZONE OF ODISHA
Journal Title: International Journal of Agricultural Science and Research (IJASR) - Year 2017, Vol 7, Issue 2
Abstract
Reference evapotranspiration (ET0) is an important agro meteorological parameter for climatological and hydrological studies, as well as irrigation planning and management. Due to wide application of evapotranspiration (ET) data, a number of indirect methods for estimation of Reference ET have been developed. Therefore, it becomes impractical for many users to select the best ET0 estimation method for the available data and climatic condition. To overcome this problem, a decision support system (DSS_ET) was developed which supports 22 ET0 estimation methods with varied options for calculation of various intermediate parameters, generalized data input format with copy–paste option from spreadsheet applications, visualize/check input data and results, features to estimate missing data, and user-friendly graphical user interface (GUI) that enhances its applicability as a handy research and teaching tool. The objective of the study is estimation of Reference evapotranspiration in the zone of Western Undulating Zone Odisha, using weather data of the respective locality and screening of methods to estimate reference crop evapotranspiration close to FAO-56 Penman Monteith method. For this zone, the highest ET0 values was found to be 10.61 mm/d for FAO-24 Penman(c=1) method followed by Businger-van Bavel (10.41 mm/d) and FAO-PPP-17-Penman (9.98 mm/d) in the month of May, whereas, lowest ET0 value was found in the month of December (2.95 mm/d) for the Priestly-Taylor method followed by 1982 Kimberly-Penman method (2.97 mm/d). For this zone, correction factor for Penman-Monteith, Hargreaves and 1982 Kimberly-Penman methods approaches to one. The FAO-24 Penman (c=1), Businger-van Bavel and Priestly-Taylor methods give more diversion from FAO-56 Penman-Monteith method.
Authors and Affiliations
RAJASHREE KHATUA, S. PASUPALAK
Keywords
Related Articles
- EP ID EP222781
- DOI -
- Views 147
- Downloads 0
Yield and Quality of Groundnut (Arachis Hypogaea L.) under Different Organic Sources of Nitrogen
A field experiment was conducted during the kharif season of 2009 and 2010 to study the Yield and quality of summer groundnut (Arachis hypogaea L.) under different organic sources of nitrogen. The results revealed that c...
Development of Nutritious Cookies by Incorporating Kodo and Little Millet Flour
An experiment was under taken with an attempt to exploit the commercial use of Kudo and little millet, and to improve the nutritive value of the products developed from the kodo and little millet grains by incorporating...
The Factors Influencing the Perception of the Beneficiaries Towards Soil Health Cards in Visakhpatnam District
The Soil Health Card scheme was launched in the International year of Soils to maintain the quality and health of soils. The current study examined Visakhapatnam district of Andhra Pradesh state to understand the profile...
Effect of Antibiotics on Indole-3-Acetic Acid Production by Klebsiella Pneumoniae, Bacillus Subtilis and Bacillus Amyloliquefaciens
The present study is aimed to investigate the effect of six antibiotics, namely spectinomycin(10µg/ml), chloramphenicol (20µg/ml), tetracycline(20µg/ml), kanamycin(20µg/ml),ampicillin (100µg/ml) and gentamycin (20µg/ml)...
Farmer's Perception of Climate Change in the Kosi - Watershed of Central Himalayan Region
Himalayan ecosystem supports varieties of livelihood options, such as terraced farming, agro forestry and orchards. The main source of rural livelihood and food security in the Indian Himalayan region is, rain-fed agricu...