Questions tagged [precipitation]

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

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22 views

Error: Can not read properties “coordinates” of null

I am trying to extract precipitation data from // Lab: Extract Monthly Rainfall // Load a table of state boundaries and filter. var NNigeria = ee.FeatureCollection('users/hamada2019phd/...
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3answers
50 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 ...
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21 views

Monthly evaporation and temperature reports

Actually I found monthly precipitation report from here: https://disc.gsfc.nasa.gov/datasets/TRMM_3B43_7/summary If you search TRMM you can find many dataset and I've chosen TRMM 3B43. But for ...
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1answer
30 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 ...
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1answer
42 views

Standardized Precipitation Index (SPI) equation using ArcGIS Desktop

I usually calculate monthly or 3-monthly Standardized Precipitation Index (SPI) using spreadsheet, based on daily rainfall from weather station. Attached is the spreadsheet example link. And now I ...
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2answers
25 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 ...
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1answer
41 views

TRMM 3B42RT product has no Coordinate Reference System?

When I download TRMM precipitation product 3B42RT.2016010100.7.7day and when opening it in QGIS the raster has no CRS and is seen in another place with a smaller resolution, I already tried ...
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1answer
46 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 ...
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42 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 ...
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1answer
42 views

WGS84 projection is invalid for aggregations

I am trying to extract the pixel value from the last image of an image collection. The problem is that when I do so, I get an error stating the following: This is my code for extracting the pixel ...
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1answer
140 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): ...
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1answer
38 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 ...
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1answer
56 views

Moisture Stress Index - how important is seasonal influence in a deciduous forest?

I want to calculate moisture stress index for a deciduous forest using the formula from the article 'Detecting vegetation leaf water content using reflectance in the optical domain' (Ceccato et al. ...
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148 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 ...
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1answer
35 views

Summation of multiple map layers?

What I am trying to do is to take a specific range of time (summer) over multiple years and then sum the total amount of precipitation onto a final layer. This is the code I am working with var ...
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0answers
29 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 ...
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1answer
151 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 ...
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1answer
298 views

Multi-Trend in Google Earth Engine?

I've wrote below code for visualize precipitation changes over a year with ui.chart command in two different provinces. var persiann = ee.ImageCollection('NOAA/PERSIANN-CDR') .filterDate('2017-01-01',...
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1answer
49 views

How can I reduce the size of shapefile (.prj, .shx, .shp) up to 8 MB? [closed]

It is sub basin photo which I want to upload to CHRS so that I can to download satellite precipitation data (https://i.stack.imgur.com/EQt3v.jpg)
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1answer
83 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 ...
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1answer
1k 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 ...
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3answers
517 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. ...
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1answer
233 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 ...
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2answers
150 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 ...
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0answers
60 views

Defining projection for FEWS rainfall data in ArcMap? [closed]

This problem has been tackled here previously (see Manually adding spatial reference information for FEWS rainfall data in ArcMap?) but i couldnt get a solution to my problem from the thread. I am ...
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109 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?
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1answer
380 views

Acquiring and understanding data from world clim? [closed]

I am a novice and trying to get monthly precipitation data of India in raster format month wise. The closest I got was from worldclim.org that too annual data for a block containing the Indian ...
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1answer
48 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 ...
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1answer
97 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 ...
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1answer
1k 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 ...
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3answers
122 views

Daily temperature data portal globally

Is there any climatic portal for downloading historical climatic data ( Rainfall & Temperature) on a daily basis or at least on a decadal basis? PRISM gives only for US regions.
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149 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 ...
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1answer
863 views

Average and Annual rainfall in R? [closed]

I have rainfall data for more than 50 years in a column. I need to get total rainfall and average rainfall for each year. How can I do it in R?
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1answer
72 views

Solving computing time problem when grid size element increases in flood model?

I want to create high resolution and high accuracy "area of inundation" map using FLO-2D Model. I have high resolution Digital Elevation Model (DEM) and I must show small topographic details on my ...
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368 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 ...
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1answer
783 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 ...
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102 views

ArcGis layer query: Average annual precipitation for area in U.S [closed]

I need to get average precipitation for certain land parcels. I've found several layers which could offer this information but queries do not return results or indicate error. Below is example of my ...
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1answer
54 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 ...
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1answer
58 views

Failing to Extract by Mask with Small Groundwater Basins?

I am using ArcGIS for Desktop. I am working with 4km resolution precipitation rasters from the PRISM website because I am trying to calculate the total annual precipitation for each groundwater basin ...
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1answer
768 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 ...
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70 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 ...
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0answers
400 views

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 ...
5
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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....
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0answers
169 views

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 ...
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0answers
568 views

Depth of run-off water [closed]

I am working on modeling surface run-off 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 well as land-...
2
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1answer
754 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 ...
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1answer
146 views

Combining many individual precipitation shapefiles to show by year in ArcMap? [closed]

I have 10 years of each year precipitation in shapefiles and would like to combine them into one to show years in ArcMap layer. Do I need to use the append or union ?
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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 ...
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1answer
983 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 ...
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2answers
8k 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 ...