How to calculate standardized precipitation index (SPI).

81 visualizaciones (últimos 30 días)
Govind Kumar
Govind Kumar el 19 de Jun. de 2019
Respondida: Chad Greene el 17 de Jul. de 2019
I have rainfall data in .mat format. Data is 2D matrix mxn where m are row representing m days and n is column representing n locations. I wanted to calculated SPI for each location as well as whole country. Please do not suggest any softweaer.
  4 comentarios
dpb
dpb el 19 de Jun. de 2019
Well, what's the actual definition one could use to calculate from? We're not all specialists in various fields...
What have you tried so far?
dpb
dpb el 19 de Jun. de 2019
Editada: dpb el 20 de Jun. de 2019
They're fitting multiple distributions to find best fit of precipitation data over the given time period, then using that to compute a percentile.
Search the FileExchange; there are several submissions there that should at least give you a head start...this won't be a five-minute exercise.

Iniciar sesión para comentar.

Respuestas (1)

Chad Greene
Chad Greene el 17 de Jul. de 2019
Hi Govind,
You might want to check out the spei function in the Climate Data Toolbox for Matlab.
Chad

Categorías

Más información sobre Weather and Atmospheric Science en Help Center y File Exchange.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by