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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.

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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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1 answer
60 views

Generate 3D rendering / DEM from NOAA ENC files?

Is there a way to generate a 3D rendering of the underwater topography lines from NOAA ENC files in QGIS? I want to take the depth contours and generate a 3D or shaded relief map from this. I ...
Jeremy's user avatar
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1 vote
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21 views

Convert GPS for NOAA national snowfall analysis

I'd like to get snow accumulation data for specific GPS coordinates (hiking peaks in the south east) using netCDF4 data from NOAA's snowfall analysis available here. According to the metadata (at the ...
Graeme Prentice-Mott's user avatar
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1 answer
58 views

Measuring Coastline of the USA (NOAA)

I need to find the distance of the US coastline, I know that this is a tricky subject on account of there being several different ways to measure the coastline (and different scales). That said, for ...
Sebastian Espinosa's user avatar
1 vote
0 answers
54 views

What is the CRS for the NOAA GHCN database

The NOAA publishes a Global Historical Climatology Network (GHCN) database having stations with latitude, longitude and elevation. So far, I cannot determine the coordinate reference system. It only ...
Reinderien's user avatar
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82 views

Georeferencing JPSS-1/NOAA-20 L2 data (VJ109_NRT) with Python GDAL

I'm new to satellite image processing. I am working with a collection of VJ109_NRT - JPPS1 images. It is a L2 VIIRS product. They come with an extension .nc. I have read the proposed documentation (...
Alex Mak's user avatar
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0 answers
92 views

Trouble reading LAZ downloaded from NOAA LiDAR database

I am attempting to download the raw point cloud of a LiDAR acquisition from NOAA's Office of Coastal Management's LiDAR database using R. The data download with out error, but when I read in the laz ...
Sean McKenzie's user avatar
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45 views

Getting started with NOAA conus_bref_qcd calls

I'm trying to take advantage of the NOAA radar APIs to create a JPG/PNG image of the radar situation centered around a certain lat/lng coordinate. I've tried looking at the documentation here for the ...
Nate Baxley's user avatar
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19 views

What units are AVHRR channels 1-3 in?

I'm trying to combine pre-1981 imagery from NOAA's AVHRR with post-1981 imagery from Google Earth Engine for some urban land cover prediction tasks, but have found that the channels 1-3 appear to be ...
user1880610's user avatar
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0 answers
78 views

GOES Image Viewer - GeoTIFF metadata

I am working with GOES Latest Full Disk Dust RGB product. I do not want to process this product locally, thus I am downloading the GeoTIFF available in the website (rectangle 2 - attached image). When ...
Just_4n0th3r_Pr0gr4mm3r's user avatar
-1 votes
1 answer
44 views

Seeking atmospheric WMS data for South America and Brazil

I'm working in a environmental project in Brazil and I need to create, if possible, a map service to show atmospheric conditions. I'm looking for a WMS source to show cloud and another atmospheric ...
M Geoprocessamento 67's user avatar
2 votes
1 answer
125 views

Coordinate reference system for NOAA ENCs

I am very new to QGIS as I'm having to migrate my work here from Google Earth in the wake of NOAA discontinuing their RNC files. All I need to do on QGIS is plot series of points 1 nm apart along a ...
Margaret's user avatar
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1 answer
250 views

When i save my xarray DataAarray the coordinates are wrong

I have three 3x3 arrays that are downsampled data from NOAA's Global Hydro Estimator (smaller to make it quicker for testing). One array is lats, one is lons, and one is rainfall. Here's a sample lons:...
JWB's user avatar
  • 604
1 vote
1 answer
75 views

Recover historical shoreline extract from Google Earth Tool and .mdb using Ubuntu OS, NOAA T-00267

For a birthday present for my father-in-law, I want to get historical shoreline data viewable in Google Earth into a format I can read into R and use with the sf package, specifically table T-00267, ...
Cannon's user avatar
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1 answer
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How do I interpret VNP13A1: VIIRS Vegetation Indices 16-Day date?

In Google Earth Engine, looking at the metadata for VNP13A1: VIIRS Vegetation Indices 16-Day 500m a start and end date is provided. When converted to regular UTC date they are 2022-09-30 to 2022-10-08....
Ben's user avatar
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1 answer
2k views

Xarray computing of a new variable on the basis of the existing one

I have netcdf file with calculated average temperature (°F). My goal is to create new data variable within the same file with cooling / heating degree days using that average. This format is totally ...
nomad_gis's user avatar
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1 answer
141 views

HURDAT2 Does anybody have advice on how to convert large txt file to .shp in efficient manner?

NOAA's National Hurricane Center provides historical data on hurricane tracks from 1851-present (https://www.nhc.noaa.gov/data/hurdat/hurdat2-1851-2021-041922.txt) . I need to update a map with these ...
jkarmaz6's user avatar
0 votes
1 answer
71 views

NetCDF stretched along Y (latitude) axis

I'm working with NOAA temperature NetCDF files and trying limit area of interest to the US area only using bounding box. In Jupyter Notebook I wrote few lines to do it and on the plot everything looks ...
nomad_gis's user avatar
0 votes
1 answer
1k views

Get historical wind forecast data from GFS for a specific location

I need historical windspeed & direction forecast to train an ML model. GFS seems to be the best solution since they have 6 months of forecasts publicly available: https://www.ncei.noaa.gov/data/...
KaaraT's user avatar
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1 vote
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182 views

Merging S57 NOAA ENC Depth Contours (DEPCNT) for Different Scale Level Maps

I have a challenge merging ENC map data from S57 to derive single maps comprising the most accurate data available. For example: I have a scale level 5 map US5FL25M which holds more accurate data than ...
Timothy Dalton's user avatar
0 votes
2 answers
47 views

Seeing Z value from Exported Data (NOAA) using QGIS

I open the ENC Direct data (any file) (https://www.charts.noaa.gov/ENCs/ENCs.shtml) in ArcMap using Esri's free S-57 loader extension and I'm able to see the SOUNDG_P layer and can display the Depth. ...
d.lavysh's user avatar
  • 103
1 vote
1 answer
152 views

CRS for NOAA snow cover data

I am helping an undergrad student with dissertation work. The student wants to analyse this data: https://www.ncei.noaa.gov/products/climate-data-records/snow-cover-extent With CDO I created annual ...
DHG's user avatar
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1 vote
0 answers
720 views

Converting NOAA Nautical s57 ENC to shapefiles for use in QGIS on Mac - missing .prj files?

I have been attempting to follow the instructions given on the following video: https://www.youtube.com/watch?v=9W5TmXSMsRk which is basically an English version of this: https://www.sigterritoires.fr/...
rdel's user avatar
  • 11
1 vote
2 answers
244 views

When reading a BSB/KAP chart file, I am getting incorrect run lengths. Many runs lengths are way too long

My java code for reading the run length portion of the stream is shown below. The run lengths being read in don't make sense. byte b = (byte) br.read(); //read a byte from the stream ...
user1644002's user avatar
0 votes
0 answers
25 views

How can I know the specific information of the monthly average data?

I know that the "google earth engine" site provides NOAA's VIIRS-DNB VCMSLCFG information. This is the monthly average data. The satellite photographs the entire earth twice a day, and I ...
ᄒᄋᄅ's user avatar
1 vote
1 answer
986 views

Opening a grib from the web with GDAL in Python using /vsicurl throws error on Mac but not Windows

I have a Python script that attempts to open a grib file as such: from osgeo import gdal url = "/vsicurl/https://ftpprd.ncep.noaa.gov/data/nccf/com/hrrr/prod/hrrr.20210505/conus/hrrr.t15z....
JWB's user avatar
  • 604
0 votes
2 answers
403 views

How to display SWPC aurora forecast data in Leaflet

The US Space Weather Prediction Center publishes the output of its Ovation forecast model on their website as JSON files: https://services.swpc.noaa.gov/json/ovation_aurora_latest.json As far as I can ...
Stefan Gofferje's user avatar
0 votes
1 answer
148 views

Accessing ee.ImageCollection("NOAA/GOES/16/FDCC") from Google Earth Engine

Can you advise if ImageCollection("NOAA/GOES/16/FDCC") from GOES-16 FDCC Series ABI Level 2 Fire/Hot Spot Characterization CONUS contain any data? I was trying to review the map with Earth ...
My Phan's user avatar
2 votes
1 answer
276 views

Reproject file to line up with geographic features on a map

I have been trying to reproject data to match the "geographic features" on a map (and also shapefiles) in QGIS or on the web. I'm ingesting raw GRIB data (available here). I'm using python ...
Craytor's user avatar
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0 votes
0 answers
251 views

Translate to GTiff from NOAA nc file

I have level 2 of NOAA nc file. The data is in https://1drv.ms/u/s!AjXAWS5maHffhyqaxqd61ok-SFsY?e=mcUdnE. I want to open the file in QGIS or GRASS GIS. But, they don't recognize it. So, I use GDAL. I ...
mega saputra's user avatar
0 votes
0 answers
91 views

Opening marine phytoplankton NPP data in QGIS

How can I open these file in QGIS? I am beginner at GIS softwares. My aim is to obtain marine phytoplankton NPP data. These data are available at oceancolor.gsfc.nasa.gov and www.nodc.noaa.gov, but ...
Ferenc Mics's user avatar
2 votes
1 answer
3k views

Unable to read GRIB datas with XArray

I used this code to read grib data import os import numpy as np import pandas as pd import xarray as xr path = "gfsanl_4_2019101000.g2" os.chdir(path) ds = xr.open_dataset('...
Berke Şentürk's user avatar
0 votes
1 answer
1k views

Is there anyway to read grib file without download it?(directly from the link)

grbs = pygrib.open( 'https://www.ncei.noaa.gov/data/north-american-mesoscale-model/access/historical/forecast/202001/20200101/nam_218_20200101_0600_024.grb2') grb = grbs.read(1)[0] This is what I ...
Sean Liu's user avatar
  • 101
1 vote
0 answers
139 views

Whether NOAA AVHRR NDVI V5 already remove cloud?

We want to use NOAA/CDR/AVHRR/NDVI/V5 datasets for analysis, but we are not sure if the NDVI already remove the cloud and cloud shadow or not? Need we use 'QA' to remove the cloud and cloud shadow ...
zora liu's user avatar
1 vote
1 answer
426 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[...
kg1313's user avatar
  • 11
4 votes
1 answer
415 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 ...
thiago's user avatar
  • 51
0 votes
1 answer
358 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/...
El Dude's user avatar
  • 181
1 vote
1 answer
2k 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 ...
user88484's user avatar
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0 votes
0 answers
129 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/...
kcc29's user avatar
  • 1
0 votes
1 answer
5k 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). ...
alexandersupertramp's user avatar
2 votes
1 answer
1k 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 ...
StuffOfInterest's user avatar
0 votes
0 answers
157 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.) ...
Hamp's user avatar
  • 71
0 votes
0 answers
269 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 ...
scottlittle's user avatar
1 vote
1 answer
361 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: ...
Geoff Fox's user avatar
  • 335
2 votes
1 answer
2k 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 ...
dtanon's user avatar
  • 529
1 vote
3 answers
409 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, ...
JimO's user avatar
  • 11
1 vote
1 answer
848 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 ...
Rafael's user avatar
  • 125
1 vote
1 answer
574 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 ...
bs7280's user avatar
  • 113
2 votes
1 answer
1k 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" ...
guilhermecgs's user avatar
2 votes
0 answers
321 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 ...
Pat's user avatar
  • 121