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Questions tagged [precipitation]

Precipitation is a common climatic variable used in many GIS modeling processes

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Reprojecting of raster using QGIS

The raster I am trying to reproject is found here https://psl.noaa.gov/data/gridded/data.gpcp.html, and it's the first one "Monthly Mean" (so you might try to do it yourselves). Problem is ...
Simone's user avatar
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2 votes
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How to clip precipitation layer to a shapefile in QGIS?

I downloaded a 4000m resolution precipitation dataset from ClimateEngine. I tried clipping by mask layer and the clipped raster doesn’t fill out the shapefile leaving major gaps. What can be done so ...
ccquinon's user avatar
2 votes
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119 views

Understanding NOAA/GFS0P25 dataset of Google Earth Engine scale change

I have noticed that there are a big differences between the forecasting values of the years 2018-2019 against 2020 for 'total_precipitation_surface'. var dataset = ee.ImageCollection('NOAA/GFS0P25') ...
carlos sanchez's user avatar
2 votes
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109 views

Projecting a PRISM raster from NAD1983 to Albers Equal Area PCS in ArcMap: Why does my raster change position and cell size?

I want to perform zonal statistics on PRISM precipitation rasters using watershed shapefiles as my input zone features. I'm operating under the precept that I should project all my data into the same ...
jbrengel's user avatar
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2 votes
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202 views

How to handle multiple rasters (precipitation data) in QGIS?

Currently I am working at a hydrological model for Rwanda which needs monthly precipitation data averaged over the area of subcatchments. The precipitation data are 144 TIF's from CHIRPS for timespan ...
Chris Bouman's user avatar
2 votes
0 answers
548 views

How to download GPM rainfall data automatically?

How to download GPM rainfall data automatically? I tried to use DownloadGPM.R Function, but I think I had problem with Axel download accelerator. I guess I need to declare Axel as environment ...
Bindini's user avatar
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1 vote
1 answer
71 views

Earth Engine GFS: Calculating Hourly Precipitation

Any tutorial on the GFS model in Earth Engine describes filtering out the 6-hour precipitation intervals, to avoid double-counting the cumulative precipitation band. However, I cannot square the ...
Carl Churchill's user avatar
1 vote
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How to use Lagrange interpolation method for station lies between a grid?

I have rainfall data for a catchment from 1990-2020 in grid format. But my station of interests lies in the grid, how to apply the interpolation to that station. I'm not sure if I'm proceeding ...
Hydra's user avatar
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1 vote
1 answer
128 views

Calculating spring precipitation totals from monthly PRISM time series using Google Earth Engine

I'm working with monthly precipitation data from PRISM Climate Group for the time period Oct. 1991 to Sept. 2021. The monthly images are currently in an imageCollection and I'm trying to calculate the ...
JL435's user avatar
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1 vote
1 answer
323 views

GPM monthly data is inconsistent with the half hourly data aggregated to monthly

I wrote a code in GEE to first aggregate half-hourly GPM data into cumulative daily precipitation and then aggregate daily data into cumulative monthly data. In the next step, to ensure that my code ...
Omid Zandi's user avatar
1 vote
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330 views

Extract precipitation values for polygons over PRISM dataset using Google Earth Engine

I am trying to extract monthly PRISM ppt values over 58 polygons for 1 year. I am able to extract the values for one month (image), but when I try to map over the entire image collection, the result ...
Ct14's user avatar
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1 vote
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Getting the monthly aggregate precipitation values from ERA5-Land Monthly Averaged - ECMWF Climate Reanalysis

I have a problem with the ERA 5 - Dataset. What I need are the monthly aggregated values for the precipitation in my region. In the "ERA5 Monthly Aggregates - Latest Climate Reanalysis Produced ...
L.J.E.'s user avatar
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ERA5-Land Hourly Precipitation Chart and Map

I am little bit confused how to handle the "ERA5-Land Hourly"-Dataset in GEE. I want the total precipitation of every month from 2018 till end of 2021 for my area. For the chart I took the ...
L.J.E.'s user avatar
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248 views

Which format to display the gsmap downloaded data in QGIS?

Where can I download gsmap data especially for precipitation / rainfall and which format can be supported by QGIS software?
Ernest Ruzindana's user avatar
1 vote
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73 views

Error in merging two raster files (precipitation) in QGIS

The newly computed geotiff shows the extent of both raster layers, but only the data of one. If I use identify features tool it gives me only the values of the visible part not of the other part. I ...
Enzo Baldini's user avatar
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Simulate water runoff to get water height over each pixel of DEM

Here is my problem that I am trying to deal with. I have given a height map of around 512X512 resolution(It is Geo-referenced and I have the meta-data for this). And I have given that this area ...
zelta's user avatar
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Open-source tools for run-off depth calculation

I am working on modeling surface run-off (in ArcGIS 10.2) due to a rain event (e.g., 5 year rain for a duration of 30 mins.) over an approx. area of 30 km2 for which I have a DEM and necessary soil as ...
Shrestha's user avatar
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55 views

Why NOAA layers appear to be incorrect

I had previously built a Leaflet map that pulled past precipitation data (24, 48, and 72 hours) from the NOAA nowCOAST site, however, the site was decommissioned. I used a previous StackExchange post ...
geoscience123's user avatar
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21 views

Scale parameter value to extract precipitation data using CHIRPS in GEE

I'm trying to find the precipitation data over 270 polygons using the UCSB-CHG/CHIRPS/PENTAD collection. When I set the scale anywhere between 10m-1000m, I can see for all polygons there is data ...
rekha's user avatar
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Assign single SPEI value for each city

I want to have a single value of SPEI to every city of my map. As the SPEI data is gridded at 0.5 degree resolution, some cities o not have a point falling into its boundaries. My approach was to &...
Oalvinegro's user avatar
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CMIP6 Timeseries Values of 0 using ee.Reducer.mean

I am trying to acquire long term precipitation data using the Nex-GDDP-CMIP6 datasets with the band "pr". I am able to create a time series, however, all the values are of 0 because they are ...
Max Lippa's user avatar
0 votes
1 answer
139 views

Use data from 'UCSB-CHG/CHIRPS/DAILY' to calculate total precipitation

The total amount of precipitation for the same days using data from 'UCSB-CHG/CHIRPS/DAILY' gave almost identical amounts of precipitation for a large country and for a city in the country. How can I ...
CS_RT's user avatar
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3D rainfall rendering

The following link shows how to render rainfall in a 3D scene using JavaScript in ArcGIS API. I don't have any experience using ArcGIS API thus, is it possible to render precipitation and cloud cover ...
Arthur_Morgan's user avatar
0 votes
1 answer
60 views

Identifying the certain values and counting the event of maximum precipitation with it's date and pointID with Python

I have a CSV file of my study area and I want to choose best area in this large study area to run my modelling for hydrogeology which is based on maximum event precipitation. I have the code and I can ...
Hadi's user avatar
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146 views

NetCDF file is rotated QGIS

I downloded IMERG precipitation data as NetCDF files but when I use QGIS to open them, the raster files are rotated. Does anyone know how to solve this?
Anas Hesham's user avatar
0 votes
1 answer
1k views

GPM annual precipitation using Google Earth Engine

I'm trying to calculate GPM v6 annual precipitation using the Google Earth Engine, but show this error: Line 11: ee.ImageCollection(...).select(...).filterDate(...).filterBounds(...).clip is not a ...
user89083's user avatar
0 votes
0 answers
662 views

Downloading JAXA/GPM_L3/GSMaP/v6/reanalysis" hourly product in Google Earth Engine

I want to download "JAXA/GPM_L3/GSMaP/v6/reanalysis" hourly product for a relatively large area approximately 300000 square km and for a long period of time, say 15 years, since this product ...
Omid Zandi's user avatar
0 votes
0 answers
33 views

Is it okay to do analysis on coarse rainfall data, since the area calculations can be highly misleading

I need to find the area of different classes within the rainfall data, which will be pixel-based, and since coarser data may under and over cover the study area (image below), the area calculations ...
shrippi's user avatar
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High Resolution Monthly or Annual Precipitation data for four corner states or the Navajo Nation

I was wondering if anyone on here might know where I can find 30 meter resolution Average Annual or Average Monthly Precipitation data, that would cover the 4 corners area (UT, AZ, NM, CO) or ...
NamuDude's user avatar
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372 views

Summing multiple years of rain data using Google Earth Engine?

I am trying to determine the what areas tend to get rain in a specific interval of time over multiple years. What I am doing is taking the filter date (in this case June 15th through July 15th) and ...
Joey Roses's user avatar
-1 votes
1 answer
225 views

Daily rainfall chart in a polygon between dates in GEE

I would like to make a chart of daily rainfall in a polygon of a shape file collection. var inidate = ee.Date.fromYMD(2020,5,1) var enddate = ee.Date.fromYMD(2020,11,10) // Difference between start ...
Claudio Hernández's user avatar
-2 votes
1 answer
55 views

SMAP time series analysis error in code

Input are: NASA/SMAP/SPL4SMGP/007 NASA/GPM_L3/IMERG_MONTHLY_V06 When I try to compute the time series I get the following error: ImageCollection (Error) reduce.mean: Error in map(ID=20200601_0130): ...
Eppez's user avatar
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