The Unit is serving the farming community with following mission
1. To enrich the farming community of Delhi villages with information about weather for the next 5 days in advance.
2. To add new dimension on tactical decisions for the crop improvement.
3. To sensitize the farmers in terms of awareness of new farm technology for sustainable agriculture.
Climate and weather are two fundamentals to be considered in any programme of economic development. It is climate that, over the years, determines natural vegetation, abundance or lack of fresh water, agricultural possibilities, and suitability of a crop. It is weather that determines the most economic farm operation , the fluctuating demands for irrigation , the best period for carry out various farming operations, the comfort of different cultivars at any location .
It is customary to think of weather as vast and global. But weather also exists on a much smaller, local scale, as anyone will realize when relaxing under a shady tree on a hot summer day or sheltering from a cold winter wind behind a fence. Sunlight, wind, rain, snow, temperature and humidity are different under a dense forest cover, under grass, under sparse desert vegetation and within the soil and crop itself.
The atmosphere is the seat of many types of waves, which have a period of a few minutes to a few hours. The meteorological waves, which bring about changes in weather, have periods ranging from a single day to several days. The fluctuations of weather are the result of travelling waves and need mathematical solutions, as it is a mathematical problem.
Weather forecasting by model is objective, fast, and effective and involves the understanding of the factors affecting the weather conditions. For day-to-day agricultural operations we need a weather forecast at range, which is not to short
The short-range forecasts are inadequate for planning of weather based crop management because the reaction time required for implementing the precautionary measures is longer. Information on impending weather three to ten days in advance is vital to ensure optimum effectiveness of modern farming practices. Therefore, the need for forecasts in the medium range is meant to help enhance crop production. Economists now recognize that adequate weather information reduces unnecessary expenditure helps to avoid waste of national resources is a must both at the planning and operational stages of many development programmers.
Man's knowledge of his climate and weather has also increases greatly in modern times and is being increasingly applied to assist agricultural activities of all kinds. Here again, however, the task is far from complete, and much more needs to be done to improve and apply present knowledge. The great improvement in plants has been matched by an improvement in farm technology. Fertilizer production and use had been greatly expanded in the last few years. Far more weed killers and insecticides are also in use all over the Asia than ever before. Moreover the new hybrids, especially a shorter growing season crops and this has enabled double cropping to be introduced in regions where it was impossible before.
Identification of threshold values of weather parameters for decision-making regarding field operations in agriculture is an essential ingredient of research in agrometeorology. Both laboratory and field experimental results can provide such information. For several crops this information is recorded and available in several books, leaflets and research papers reported in scientific literature.
In spite of various technological advances in recent years, country's agricultural production is primarily dependent upon the climatic as well as weather conditions. In coming years, agriculture will certainly face challenging situations on the ecological, global, climatic, economic fronts. This would call innovations, first rank technology generation and its effective dissemination in realization of competitive quality of produce to ensure better returns.
Information is broadly required for three major purposes :
a) Long and short term planning and management at national or regional level.
b) Academic understanding and improvement are requiring for higher accuracy and quality of data products.
c) Practical application under field conditions for day to day agricultural operations, contingency planning and crisis management in times of abnormal and adverse weather occurrences.