What is TRMM 3B42?
TRMM 3B42: 3-Hourly Precipitation Estimates. The Tropical Rainfall Measuring Mission (TRMM) is a joint mission between NASA and the Japan Aerospace Exploration Agency (JAXA) designed to monitor and study tropical rainfall.
What is TRMM rainfall data?
Rainfall: Rainfall includes all forms of water particles, whether liquid (for example, rain or drizzle) or solid (hail or snow), that fall from clouds and reaches the ground. Observations of daily rainfall are nominally made at 9 am local clock time and record the total precipitation for the preceding 24 hours.
What does TRMM stand for?
Tropical Rainfall Measuring Mission
The Tropical Rainfall Measuring Mission (TRMM) is a joint space mission between NASA and Japan’s National Space Development Agency designed to monitor and study tropical and subtropical precipitation and the associated release of energy.
What is the purpose of the Tropical Rainfall Measuring Mission?
The Tropical Rainfall Measuring Mission (TRMM), is the first mission dedicated to measuring tropical and subtropical rainfall through microwave and visible infrared sensors, and includes the first spaceborne rain radar. Tropical rainfall comprises more than two-thirds of global rainfall.
How do you calculate daily rainfall?
Add together all of the monthly rainfall totals in your sample data. You’ll be adding measurements in inches because rainfall is generally measured in inches in the United States. Divide by the number of years in your data set to arrive at the average monthly rainfall for any location.
What does daily rainfall mean?
General definitions Rainfall: Precipitation is most often rain (hence the common term), but also includes other forms such as snow. Observations of daily rainfall are nominally made at 9 am local clock time and record the total precipitation for the preceding 24 hours.
How does global precipitation measurement help humanity?
The Global Precipitation Measurement mission is an international network of satellites that provide the next-generation global observations of rain and snow to advance our understanding of Earth’s water and energy cycle, improve forecasting of extreme events, and provide accurate and timely information to directly …
What is tropical rainfall?
Tropical rainforests occur in regions of the tropics where temperatures are always high and where rainfall exceeds about 1,800 to 2,500 mm (about 70 to 100 inches) annually and occurs fairly evenly throughout the year.
What wavelengths does NASA TRMM operate at?
Visible Infrared Radiometer (VIRS) The VIRS (of NOAA AVHRR heritage) is a five-channel, cross-track scanning radiometer operating at 0.63, 1.6, 3.75, 10.8, and 12 um, which provides high resolution observations on cloud coverage, cloud type, and cloud top temperatures.
How do you calculate rainfall intensity of rainfall data?
Formula Of Rainfall Intensity The intensity of rainfall (p) in mm/hr is given by the following general formula: p = 254a / (t+b) mm/hr Where, t = Duration of storm in minutes, a and b are constants. a = 30 and b = 10 when t is 5 to 20 minutes. a = 40 and b = 20 when t is 20 to 100 minutes.