How can I get rainfall data?
please visit the attached link or https://data.gov.in/. you will find rainfall data like attached file “METEOROLOGICAL SUB DIVISION WISE ANNUAL RAINFALL ” and same fromm this website. this Open Government Data (OGD) Platform India – data.gov.in – is a platform for supporting Open Data initiative of Government of India.
What is normal rainfall IMD?
Therefore, when the rainfall averaged over the country as a whole is within ±10% from its long period average (LPA) or 90% to 110% of LPA, the Page 2 rainfall is said to be “normal” and when the rainfall is <90% (>110%) of LPA, the rainfall is said to be “below (above) normal”.
How much rainfall does Pune get?
Most of the 722 mm (28.43 in) of annual rainfall in the city falls between June and September, and July is the wettest month of the year.
How do you calculate rainfall deviation?
Meteorologists do this by computing the Coefficient of Variation. The Coefficient Variation is simply the standard deviation divided by the average annual rainfall. For San Francisco’s average rainfall of 21.79″ for its period of record, the standard deviation is 7.63″. Dividing 7.63 by 21.79 gives 0.35.
How do I get historical rainfall data IMD?
You can contact India Meteorological Department, Pune to avail meteorological data or visit www.imd.gov.in. I have a related question on data from weather forecasts on historical conditions.
What is grid rainfall data?
Gridded rainfall data sets are useful for regional studies on the hydrological cycle, climate variability and evaluation of regional models. In the recent years, there has been a considerable interest among different research groups in developing high resolution of gridded rainfall data sets.
What is LPA rainfall?
According to the IMD, the “LPA of rainfall is the rainfall recorded over a particular region for a given interval (like month or season) averaged over a long period like 30 years, 50 years, etc”.
What is rainfall data?
Rainfall data generally are collected using electronic data loggers that measure the rainfall in 0.01- inch increments every 15 minutes using either a tipping-bucket rain gage or a collection well gage. Twenty- four hour rainfall totals are tabulated and presented.
Is Pune a rain shadow area?
PUNE: Despite being a rain shadow region, Pune is the only district in Maharashtra where yearly rainfall has increased significantly since 1961 though close to 85 districts in the country, including in Delhi, Haryana, Uttar Pradesh and Madhya Pradesh, among others, have witnessed decreasing annual rainfall during the …
What is a rainfall data?
Which method used for analysis of rainfall data?
The literature shows several methods in identifying rainfall trends. However, statistical trend analysis using Mann–Kendall equation and graphical trend analysis are the two widely used and simplest tests in trend analysis.
Where can I get historical weather data India?
Indiastat.com gives in detail about Moonrise and Moonset, Natural Calamities, Rainfall, Sunrise and Sunset and Temperature.
How do I read IMD gridded data?
IMD gridded data is in netcdf format. If you are using ArcMAP, use the netcdf to raster tool under the multidimensional toolbox to display the data. OR You can use Global Mapper to read the netcdf file directly. You can also get the data in txt format and which is easy to read.
What is a gridded data?
Gridded or raster data is a spatial data format that consists of a matrix of cells, or pixels, organised into rows and columns where each cell contains a value for each grid point across a two dimensional surface.
How many mm of rain is heavy per day?
Heavy rain: Greater than 4 mm per hour, but less than 8 mm per hour. Very heavy rain: Greater than 8 mm per hour. Slight shower: Less than 2 mm per hour. Moderate shower: Greater than 2 mm, but less than 10 mm per hour.
What is average rainfall in India?
The average rainfall in India is 118 cm according to annual data from the Meteorological Department. The following is the distribution of rainfall in India: Extreme Precipitation regions: Northeastern regions and the windward side of the Western ghats experience an average of 400 cm of annual rainfall.
What is rainfall mm?
So 1 mm of rain translates to 1 litre of water in a single metre square. So 802 mm of rain would mean that a single metre square would receive 802 litres of rain, 140 mm would mean 140 litres of water received in a single metre square, and so on.