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Questions tagged [precipitation]

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

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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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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): ...
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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
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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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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 ...
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Raster values in R lacking decimals

I am trying to get raster values from several layers from CHELSA climatic data. Here you can download one of them [https://os.zhdk.cloud.switch.ch/envicloud/chelsa/chelsa_V2/GLOBAL/climatologies/1981-...
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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
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What are the mesh and raster layers in QGIS that are included when a GRIB2 file is imported?

I am currently working with grib2 files from the RDPA dataset in QGIS. When one of these grib2 files is imported, there is a raster layer and a mesh layer that is generated. I am struggling to ...
p1unge'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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CHIRPS GEF Download with R

I need to download CHIRPS-GEF (rainfall forecast) raster data in R. I have tried with url <- "https://data.chc.ucsb.edu/products/CHIRPS-GEFS_precip_v12/daily_16day/2023/10/17/*.tif" ...
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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
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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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Exporting monthly PRISM time-series precipitation data for US counties using Google Earth Engine

I'm trying to extract a monthly precipitation value from the PRISM climate dataset for each month of 2018 through 2021 (48 months total) for each US county in my shapefile (952 counties total) in ...
sloth's user avatar
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Chart of 14-day cumulative rainfall

I need to chart/download a list of 14-day summed precipitation values, and I was not able to get this script to run. I seem to be running into an error related to the 'system:time_start' property. I'm ...
brbell01's user avatar
3 votes
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Contours into polygons with QGIS

I'm using QGIS 3.26 to create a precipitation map for Los Angeles. I started with Final 85th Percentile, 24-hr Rainfall contours from here: https://dpw.lacounty.gov/wrd/hydrologygis/ I brought the ...
interwebjill's user avatar
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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 ...
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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
1 vote
1 answer
570 views

Units of ERA5 Daily Aggregates Google Earth Engine

In Google Earth Engine, ERA5 Daily Aggregates - Latest Climate Reanalysis Produced by ECMWF / Copernicus Climate Change Service Bands show the maximum total_precipitation value of 0.02m which is 20mm. ...
Muhammad Iqbal's user avatar
2 votes
1 answer
1k views

Daily IMERG timeseries in Google Earth Engine

I am trying to make an area-averaged time series of daily precipitation (IMERG). I'd use NASA Giovanni, but I need to be able to use my own shapefiles to average the areas. Given the size of the area ...
willbutdontwanna's user avatar
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How to aggregate total amount of precipitation from all cells within three seperate catchments?

Using ArcGIS Pro, I ran 4 different IDW interpolations (rasters) of rainfall measurements across 26 measurement stations (point features). I'm trying to now aggregate the total amount of precipitation ...
saltytooth's user avatar
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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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How to Map.addLayer() rainfall featureCollection over globe using Google Earth Engine?

I am trying to print the precipitation imageCollection allover the whole world but I allways get only a part of the image. as you see in the image, the north of europe is empty and event when I use ...
Ward Bahri's user avatar
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
1 answer
280 views

Precipitation data error in Google Earth Engine code

I want to get the precipitation totals for certain months, but when I run it on the WorldClim Climatology V1 dataset, I get the following error message. how can i fix this? Error message: ...
yilmaz iskit's user avatar
1 vote
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331 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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2 answers
196 views

Taking average of long term daily rainfall values if it contains lots of zero values

I wanted to interpolate my daily rainfall data into ArcGIS for visual representation. I have almost 10 years of daily rainfall data which contains lots of zeros. When I take the average daily for ...
MacBrown's user avatar
1 vote
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974 views

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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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
3 votes
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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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1 answer
133 views

Accessing historical precipitation data outside of GEE

I'm looking for historical and also present climate data for some polygons I have. I would like to be able to access rainfall data for these points. I cannot use GEE and was struggling to find a good ...
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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
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Daily Rainfall data extraction from CHIRPS database for polygons using Google Earth Engine

I don't use GEE a lot but I have to use it to extract daily rainfall data from the CHIRPS database. It should be simple but I am stuck. The outcome should be one CSV file with three columns: polygon ...
Evan's user avatar
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1 answer
540 views

GEE Converting Units of the FLDAS Precipitation data (Rainf_f_tavg) from kg m-2 s-1 to mm/month

Using Google Earth Engine to extract FLDAS dataset for specific coordinates for the time period 1990-2020. I use Rainf_f_tavg Precipitation bands with the default format is kg m-2 s-1. Then i multiply ...
Andreasssouwxt's user avatar
2 votes
2 answers
314 views

Resolution Setup for Precipitation Interpolation in QGIS

I am trying to interpolate rainfall data using the GDAL's Grid (Inverse Distance to a power) in QGIS 3.16. Is there a way to specify the resolution of the result/change the size of pixel? The ...
I'm_a_Beginner's user avatar
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0 answers
663 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
1 vote
2 answers
549 views

Dictionary.get: Dictionary does not contain key: precipitation

I am trying to get 3 hourly rainfall data for my region using TRMM/3B42. There seems to be an error but I am unable to find it. var rain = ee.ImageCollection("TRMM/3B42").select("...
Sharma ND's user avatar
2 votes
2 answers
1k views

Iterating over dates to extract precipitation in Google Earth Engine

I'm looking to sum precipitation for a period of 10-days prior to a specified date. This is just an example - in fact, I have around 60 different dates and I don't want to select each the date ...
egm's user avatar
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1 vote
1 answer
2k views

Export raster from Google Earth Engine

I wish to download the raster image of precipitation data. Is that possible? I think I'm doing something wrong when I export it. Here is my code: //Rain var lluvia = ee.ImageCollection('JAXA/GPM_L3/...
Claudio Hernández's user avatar
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1 answer
1k views

Exporting rain data to CSV file from Google Earth Engine

I would like to get the CSV file of rain daily data from GSMAP for a specified polygon (mean in geometry). I succeed in getting into it on a chart, but now I want to download the data and I'm having ...
Claudio Hernández's user avatar
-1 votes
1 answer
228 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
0 votes
1 answer
171 views

Cumulative Rainfall with GPM between dates

I am trying to generate a cumulative rainfall map between two dates using the GSMaP satellite. I don't know how to do the simple sum of the information in that band "hourlyPrecipRate". ...
Claudio Hernández's user avatar
1 vote
1 answer
112 views

Selecting only CFSR images in Google Earth Engine with precipitation data

I am trying to create cumulative monthly composites of precipitation from CFSR data in Google Earth Engine (i.e. each image would be mm/month for each month) However, I realised that images ending ...
catlovingtaco's user avatar
2 votes
1 answer
585 views

How to find out which areas are affected by flooding due to heavy rain?

I'm working on a little project to visualize affected streets of flooding due to heavy rain. I already got a DEM for my study area and filled the depressions with r.fill.dir. Since I never worked on ...
junkking's user avatar
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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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1 vote
1 answer
439 views

Bilinear resampling yields inaccurate/small values (Earth Engine)

I am trying to upscale / resample some GSMaP observations from 0.1 x 0.1 degrees to 30m. I want the resolution to match Landsat 8 so that I can perform some modeling. But in Google Earth Engine when ...
la_leche's user avatar
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2 votes
2 answers
2k views

Standardized Precipitation Index with gamma function

Inspired from Climate Engine platform, I want to calculate Standardize Precipitation Index based on this paper, where each rainfall datasets are fitted to the gamma function to define the relationship ...
user97103's user avatar
  • 537
1 vote
1 answer
646 views

Calculate daily precipitation data from hourly GSMaP over several years

I am still new to the Google Earth Engine and try to calculate the daily precipitation based on the hourly GSMaP data over a longer period of time. I know, that there are already a couple of questions ...
Torben's user avatar
  • 43
1 vote
1 answer
1k views

Extract time-series rainfall from multiple point with date information

I would like to have a CSV file which contain a time-series of 30 minutes rainfall from last 10-days before Landslide occurs from certain (landslide) location. I used NASA GPM IMERG data for the ...
user97103's user avatar
  • 537
2 votes
0 answers
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