Questions tagged [precipitation]

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

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10
votes
3answers
355 views

Know of a source of historical 24-hour rainfall totals for US locations?

I'm looking to get historical information on the magnitude of rainfall events for a given location (Boston, Massachusetts USA). For example, to create a histogram of rainfall events by precipitation ...
8
votes
3answers
804 views

Locate wet patches using DEM

I'm searching for a way to determine the location of wet patches, after rainfall, in a DEM. By this, I mean puddles. We are investigating the best locations to locate paths for recreational use. ...
6
votes
5answers
8k views

Calculating Runoff / Streams using DEM in ArcGIS

I am just curious about the workflow that many of you use for runoff/stream analysis using a DEM and create a "water network" from the results in ArcGIS 10.1? I know the average rainfall for different ...
6
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2answers
2k views

Kriging method to use for rainfall?

I am working on an rainfall analysis and I have to interpolate some datas with kriging method. Is co-kriging suitable for the rainfall analysis?
6
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1answer
2k views

Reducing image collection to get daily sum from hourly precipitation and extraction of polygon data?

I'm using GSMaP image collection in Google Earth Engine, which has hourly precipitation data from 2000 to present. I have a script which helps getting mean pcp data (as a table) from polygon from each ...
5
votes
2answers
747 views

Optimum grid/pixel size for interpolating rainfall and temperature

I have a set monthly rainfall and temperature data within an approximately 100 x 100 km study area. The sampling points are unevenly distributed within the study area. Based on a paper by Janis et. ...
5
votes
1answer
9k views

Manually adding spatial reference information for FEWS rainfall data in ArcMap?

I am trying to match rainfall data from USGS/FEWS to coordinate locations of survey households in Uganda, so I will need to be able to project the rainfall data. So far, I downloaded the dekadal RFE 2....
5
votes
3answers
6k views

How to calculate runoff in Rainfall Analysis?

I have 30 years daily rainfall data. How can i calculate the mean monthly runoff, minimum monthly runoff and maximum monthly runoff with the available rainfall data using GIS? I would like to use ...
4
votes
2answers
892 views

Reading binary rainfall data (*.trm) in ArcGIS for Desktop?

I have some *.trm binary data that is merged Tropical Rainfall Measuring Mission (TRMM) rainfall data. I have to read it through ArcGIS for Desktop to extract rainfall data from this.
4
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1answer
1k views

Interpolating multiple years of daily precipitation data to generate daily time series? [duplicate]

I am trying to use ArcMap ver. 10.2 to create several models using ModelBuilder. The model will be created to: interpolate 7 years of point measured precipitation data (long integer format at a daily ...
3
votes
4answers
2k views

climatic data from MODIS or other sources [closed]

I'm looking for climatic information in the form of raster like MODIS daily LST (Land Surface Temperature) data. I'm looking for other parameters like precipitation, humidity, air pressure and so on. ...
3
votes
1answer
988 views

Google Earth Engine: precipitation data, summing monthly data is not matching annual sum

In essence, I used GRIDMET to pull both monthly and annual precip over the same area, same time, and same database, but summing each month for the same water year is not matching: NEW NOTE: As ...
2
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1answer
49 views

Storm Total Precip Map

I'm using ArcMap 10.5. I have two individual days of precip data rasters from NOAA/NWS. I want to combine the two days with the cumulative total storm precip displayed in a new raster. Many of the ...
2
votes
2answers
347 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 ...
2
votes
1answer
87 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 ...
2
votes
1answer
573 views

QGIS: Creating average of a precipitation multiple raster set?

I have a set of 12 precipitation raster layers downloaded from WorldClim, each one representing monthly precipitation data on a global scale. I've clipped all 12 layers with the area of interest. How ...
2
votes
1answer
58 views

Any standards for urban rainwater drainage network?

I am starting to work on a project related to urban drainage networks. Are there any standards out there to represent this kind of network? Relevant attributes would be things like pipe section, pipe ...
2
votes
1answer
790 views

Method of inputing time series data in ArcGIS

I have weather stations with its geographical location ( lat,long, ht) along with daily temperature and rainfall data in time series format. I would like to use this meteorological data to interpolate ...
2
votes
1answer
2k views

Python package for processing GRIB data in windows

I would like to know what python packages can be used to process GRIB (Gridded Binary) data on a Windows system. I know there is something called pygrib, but to use that I have to use cygwin windows ...
2
votes
2answers
49 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 ...
2
votes
1answer
118 views

Daily Rainfall data processing?

i have a .shp file of gridded daily rainfall data for an entire state. How do i calculate the sum of all 365 days (each day is a field, n recorded for 450 stations) and generate a raster? I am ...
2
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0answers
55 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') ...
2
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0answers
59 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 ...
2
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0answers
175 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 ...
2
votes
0answers
452 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 ...
2
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0answers
2k views

How to convert Rainfall Isohyet map into Raster to determine precipitation (mm) at any point? [closed]

Specifically, I have a rainfall map (Isohyets) measured in mm (precipitation)... I wanted to know a particular value (precipitation) at any point between these lines... How can I do this? Do I have ...
1
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2answers
9k views

Mapping Precipitation Data

I have downloaded daily precipitation data from Global Weather data website and want to create an annual precipitation map like this: (source: worldatlas.com) The downloaded data is in TXT and CSV ...
1
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2answers
226 views

Interpreting GLDAS 2.1 precipitation data

I am trying to use the GLDAS 2.1 3-hourly precipitation datasets available at: The dataset is documented here: https://hydro1.gesdisc.eosdis.nasa.gov/data/GLDAS/README_GLDAS2.pdf The data is ...
1
vote
2answers
2k views

Calculating watershed runoff with landuse and rainfall data?

What is the method for computing rasters of total rainfall of a given month, flow accumulation, and land use (runoff coefficient) or soil K factor? I am using ArcMap 10.
1
vote
1answer
55 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 ...
1
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3answers
83 views

Rainfall interpolation using ArcMap

I have a layer that describe rainfall for 10 years. Now I want to interpolate the area in ArcGIS Desktop (ArcMap) 10.7. As you know I should define some point on my area to extract the rainfall from ...
1
vote
1answer
148 views

Batch raster operations to get Maximum Precipitation in Catchment

I have information of maximum precipitation per grid cell for a certain area over 55 years, each year is a different matrix with the corresponding precipitation values. I know that I need to do the ...
1
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1answer
1k views

Using rainfall data (raster) as an input to determine stream lines in Arc Hydro?

I was wondering if it is possible to use rainfall data (raster) as an input to Arc Hydro for determining stream lines? I am learning Arc Hydo and have gone through a couple of tutorials. As far as I ...
1
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1answer
116 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/...
1
vote
1answer
342 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 ...
1
vote
2answers
121 views

Clustering Raster Monthly Precipitation Pattern

I am looking for a way to automatically cluster the monthly rainfall data that I have like the Koppen Classification Map. I have 12 raster files of precipitation (months of Jan-Dec) of a country and I ...
1
vote
1answer
437 views

Reducing hourly rainfall data to monthly data for particular period of time and making a timeseries chart

I am working with GSMaP image collection (hourly rainfall data) in Google Earth Engine. I would like to make a script which is calculating and making a chart of sum rainfall in particular location ...
1
vote
1answer
268 views

Average precipitation raster

I want to plot mean annual precipitation data for a region. I downloaded the precipitation dataset for 1900-2014 from University of Delaware site in netCDF format. Whenever I try to open the dataset ...
1
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1answer
2k views

Calculating and displaying mean annual precipitation from CRU data

I'm trying to display mean annual precipitation (MAP) data from the CRU dataset (http://data.ceda.ac.uk/badc/cru/data/cru_ts/cru_ts_4.01/data/pre/) across a specific region. The data are monthly ...
1
vote
1answer
978 views

How to automate the Interpolation of daily(Total-365 days) precipitation data?

I have daily rainfall data in comma-delimited text file for some location as follows Lat, Long, Precipitaion(mm) 26.0, 78.0, 23 26.50, 78.30, 200 26.70, 78.45, 405 ... I have total 365 files, means ...
1
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1answer
1k views

creating precipitation grid

I am trying to create a precipitation grid for my meteorologic model. The problem is that, I do not know what are the things I should have for me to create the grid. Can anyone tell me what are the ...
1
vote
1answer
673 views

How to use ArcMap for HydroPower Potential

I am trying to determine the sites for small hydropower. I have a elevation dem, rainfall data, Curve number data (from soil and landuse shapefiles). I have already used the DEM to fill sinks, find ...
1
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2answers
51 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("...
1
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0answers
61 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 ...
1
vote
1answer
149 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 ...
1
vote
1answer
118 views

Reduce image collection to get daily sum from hourly precipitation GSMaP 12:00h pm to 11:00h am

I am trying to adapt a script made available by colleagues from the GEE of the GSMaP image collection. The script obtains data (as a table) of the points of each image available in a given period and ...
1
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1answer
70 views

Using IDW tool in ArcGIS Desktop

In ArcGIS Desktop 10.7 we have IDW tool, but when you want to work with it you should need two layers such as : Some points and a closed polyline (Boundary) as following: then using IDW: but I have ...
1
vote
0answers
697 views

Map gridded rainfall data to lat-longs and extract daily rainfall data? [closed]

My objective is to create a dataset, wherein for certain locations (lat-longs) I need to report daily rainfall from 1950 to 2017. Rainfall data source: Indian Meteorological Department (IMD) daily ...
1
vote
1answer
2k views

Google Earth Engine band did not match any bands errord

According to the dataset, there should be a band named: total_precipitation_surface. However, when I try to get data from this band I get: > Collection.first: Error in map(ID=2019061000F000): ...
1
vote
1answer
50 views

How can I calculate the maximum sky viewing angle for every point in a DEM not covered by objects? [closed]

I am looking for areas in a city that are suited for setting up precipitation measuring stations. One constraint is, that the station has to be distant from each object at least two times the object's ...