Questions tagged [noaa]
The National Oceanic and Atmospheric Administration (NOAA) is a US federal agency focused on the condition of the oceans and the atmosphere.
41
questions
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1answer
32 views
GCS Sphere EMEP vs GCS WGS 1984
NOAA provides QPF data on rainfall in the form of shapefiles. The shapefiles include .prj files with information on the coordinate system used:
GEOGCS["GCS_Sphere_EMEP",DATUM["D_Sphere_EMEP",SPHEROID[...
4
votes
1answer
52 views
Converting NOAA's World Ocean Database NetCDF files to tabular data using Python
I'm trying to convert variables from NetCDF files to tabular data, but can't understand how to group observations by some index or key variable.
For example, when loading data from WOD queries using ...
0
votes
1answer
36 views
NOMADS grib file naming
I am looking to run
https://polar.ncep.noaa.gov/waves/examples/usingpython.shtml#example_2
example on wave model data.
It refers to downloading grib files from
https://nomads.ncep.noaa.gov/pub/...
0
votes
0answers
24 views
Reprojecting map service on the fly
When I load the map service into ArcMap 10.6.1 from this REST endpoint, it projects fine in its native projection (WGS_1984_Web_Mercator_Auxiliary_Sphere): https://seamlessrnc.nauticalcharts.noaa.gov/...
1
vote
1answer
96 views
Understanding NOAA/GFS0P25 dataset of Google Earth Engine
I'm trying to get time-series data from NOAA/GFS0P25 data set on GEE.
My code:
var m2 = "NOAA/GFS0P25"
var band1 = 'total_precipitation_surface'
var data_collection = ee.ImageCollection(m2);
var ...
0
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0answers
34 views
Getting Data from NOAA Reanalysis API
I know that to access data from the NOAA Web Server, the token must go in the header.
Accessing NOAA web service with token
For example,
curl -H "token:AbCdEfGhIjKl1234" http://www.ncdc.noaa.gov/cdo-...
0
votes
0answers
51 views
Automating Model Builder (ArcMap) for NetCDF Processing
I have a NetCDF with 30+ years of monthly data from which I want to find the climatological normal. Using the NetCDF tutorial I found through NOAA (https://www.esrl.noaa.gov/psd/data/gridded_help/...
0
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1answer
365 views
“Error 4: xxxxx.dat: not recognized as a supported file format.”
I am trying to convert a .dat file to a .tif file using gdal_translate. The .dat file comes with an associated .Hdr file of the same name with the metadata (these are geospatial data from SNODAS). ...
0
votes
0answers
11 views
How to get ERDDAP maximum time limit range?
I need to query an erddap/griddap service (i.e. NOAA/NCEP) in order to get its time axis maximum value, before submitting the request. I have read many documentations but couldn't find a way.
Is ...
1
vote
1answer
301 views
Add NOAA layers to OpenLayers map
I'm trying to add a NOAA hosted layer to an OpenLayers map. I've seen some examples of doing it with an older (pre 3) version of OpenLayers and of services no longer offered by NOAA. Has anyone ...
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0answers
63 views
Tiff file output using print composer has blocks of image scrambled (out of place)
I have used 2.18 to print maps to file (tiff) using print commposer. The base layer imported into QGIS consists of NOAA raster tiles. (My problem arises whether or not I have added other layers.) ...
0
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0answers
232 views
Open NOAA daily datasets in R language
I need the daily mean temperatures and precipitation values for particular days and specific localities, far from any weather gauge. I guess that, for example, this dataset kindly provided by NOAA ...
0
votes
0answers
164 views
Is there an API for NOAA GOES 15 satellite data?
In August 2015, I was requesting GOES 15 GVAR_IMG satellite data because it had both visible and infrared light info (useful for studying cloud coverage and solar radiation). I remember having to ...
0
votes
1answer
195 views
QGIS placing data incorrectly?
I have two layers open. One is a Natural Earth ocean layer, the other an output from an NOAA computer forecast model. The forecast model is misplaced to the east as seen in this image.
QGIS knows: ...
2
votes
1answer
998 views
Download AVHRR 1 km SST data
How to download NOAA AVHRR 1 km resolution sea surface temperature data?
I need a SST 1 km image of the coast of Netherlands with at least 20 % valid pixels.
After searching and searching I find the ...
1
vote
3answers
226 views
NOAA NHC WFS data not visible
I have worked with .shp, geodatabases and WMS formats in QGIS but I am new to working with WFS format. I have QGIS 2.18 installed on my computer.
I am trying to open and view U.S. NOAA NHC WFSserver, ...
1
vote
1answer
419 views
How do I convert a latitude/longitude coordinate to a NOAA GFS grid cell location?
Looking at this GFS http://nomads.ncep.noaa.gov:9090/dods/gfs_0p50/gfs20170707/gfs_0p50_12z.ascii?tmax2m[0:2][124:128][279:283]
The range defined by the second and third set of brackets specify the ...
1
vote
1answer
299 views
Get CSV of specific data from NOAA NAM-NMM Dataset using wgrib2
I am trying to get data from the NAM-NMM Dataset and am having a lot of trouble getting the data I want out of the grb2 files. How can I get a CSV file containing information like Probability of ...
1
vote
1answer
678 views
Interpolate grib2 data from GFS
I downloaded a grib2 file containing GFS data.
I need to get wind and temperature from altitudes ranging from 1000 ft to 42000 ft
I know the grib2 (GFS) only have data for specific "isobaricInhPa" ...
1
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0answers
121 views
Less detailed FIPS polygons?
I'm working on a project which takes the NOAA NWS alerts and places them onto a Google Map. https://alerts.weather.gov/cap/us.php?x=0
Most alerts use the FIPS or UGC codes. I don't think I need the ...
1
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0answers
154 views
Which bands or channels these NOAA AVHRR satellite images involve? [closed]
These two satellite images are from NOAA AVHRR, but I do not know which bands or channels exactly both images represent.
Can you tell me the band or channels that are involved?
3
votes
1answer
293 views
Gdalinfo - missing corner coordinates
I came across some KAP charts which don't display correct corner coordinates from gdalinfo; despite them having REF fields in the header. For the NOAA file11425_3.KAP gdalinfo displays the coordinates:...
2
votes
1answer
2k views
How to get value of uvIndex for a particular latitude and longitude from a grib2 file?
I'm trying to find out the uvIndex of a particular set of lat,lng. I'm getting the data file from this link. I'm using pygrib to read the file.
import pygrib
grbs = pygrib.open('uv.t12z.grbf01.grib2'...
3
votes
0answers
196 views
Render Vector & Save as Raster
I am working with ENC files from noaa, specifically S57 format or ".000" to be as specific as possible.
I am trying to render a layer or even the entire thing in a window but have had no luck. ...
3
votes
1answer
424 views
VDatum helmert transform parameters
I'm trying to use NOAA's VDatum to verify the NAVD88 -> WGS84 datum conversion in a c++ datum conversion library that I've written.
The answers didn't agree, so I attempted to check a simple ITRF2008 ...
0
votes
2answers
169 views
Adding NOAA Radar to JavaScript Application
I am atempting to add NOAA's Dopler Radar to my web. For whatever reason the later will not display on the map. No errors are being reported and I have used console.log() to confirm the data is being ...
2
votes
1answer
2k views
How can I download data from an FTP server using python? [closed]
I am trying to download precipitation data from an ftp server. The code that I am using is this, but am still getting errors.
import urllib2
urlretrieve("http://ftp.cpc.ncep.noaa.gov/fews/fewsdata/...
0
votes
0answers
835 views
Downloading NOAA AVHRR NDVI using R
I am using the gimms package to automatically download NDVI data from 1981-2013. The code is provided here. The data is available here. However, after running it shows that data has been downloaded ...
6
votes
2answers
13k views
How to extract specific information from GRIB files?
How to extract fetched GRIB data with Python and gribapi package (link goes to official ECMWF Wiki)? I tried to follow few examples from their "documentation" and do it myself, but I just cannot ...
1
vote
1answer
2k views
Downloading GRIB GFS files with specific filters?
Is it possible to download a smaller GRIB GFS file with specific parameters only (e.g. surface wind and temperature values) rather than hundreds of MB of data? If so, what is the usual approach to ...
2
votes
2answers
6k views
NOAA API data for past monthly mean Temperature and precipitation
I am trying to use the NOAA API to get data on monthly mean temperature and precipitation for the past 10 years. I wrote the following python code (the variable "token" in the code is the API token ...
1
vote
1answer
110 views
Where can I get GIS data layers that show sea ice data for the Beaufort and Chukchi Seas?
I would like to put a layer on my basemap that shows sea ice coverage levels for both the Beaufort and Chukchi Seas off Alaska for the last few years. Is this available anywhere? Would I have to make ...
6
votes
3answers
3k views
Accessing NOAA web service with token
I recently requested a NOAA "token" to access their data. However, I keep receiving a "Token parameter is required" 404 error. Here is the URL I am using (note token is not the real one):
http://www....
2
votes
4answers
3k views
Converting a large set of GRIB2 files to a spreadsheet format
I have a large set of .pgrbf.grb2 files downloaded from the Climate Prediction Center, and I need to run statistical analyses comparing them to data that was produced locally in .csv format. I'm not ...
4
votes
1answer
626 views
extracting geographic location from NOAA NARR grib
I've downloaded a NOAA NARR grib file that I want to extract the wind component as well as the geographic location. I'm able to extract the wind component from the grib but I can't seem to find any ...
1
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0answers
101 views
Free Tide prediction service - World (a freeware program would work as an alternative)
Is there a free service where I could input a GPS location and it would return me the current tide situation at the position?
As an alternative - some library / program that does the exact thing one ...
1
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0answers
72 views
Water grey levels - remote sensing [closed]
by viewing two bands in erdas imagine the grey levels of the water differ. on the one image as below the water is dark and the other image the water is light. why is that? what cause the difference?...
1
vote
3answers
1k views
How to create several header files to open AVHRR NDVI3g (GIMMS) files?
I have downloaded GIMMS NDVI3g data from http://ecocast.arc.nasa.gov/data/pub/gimms/3g/
I now need to open the files in arcgis. I have the follwing GRID PARAMETERS:
grid-name: Geographic Lat/Lon
...
0
votes
2answers
458 views
Transform coordinates from NOAA
I use data from NOAA for some analysis in R and I want to transform coordinates to EPSG:54004 or something useful.
There is something what they write about their coordinates.
...
POS: 29-34
...
1
vote
2answers
3k views
Getting time dimension from GRIB file?
I have a GRIB file from NOAA that contains several variables for a specific subregion in Norht-East Atlantic.
I'm using ECMWF grip-api Python library to parse the file. While I'm able to get the ...
3
votes
1answer
2k views
NWS Grib Files scheduled download script
I am downloading grib2 files from the NWS NOMADS GFS service details here
The files are provided on a 4x per day cycle and the date format is YYYYMMDDHH. I believe that the processing is actually ...
