8
votes
Accepted
Public sources of topographical data of Earth?
This is an interesting and common question, so I'll try to give a good answer here, that I think is a good place, as well as GIS and Open Data SE.
First, regarding the format, you will never find data ...
- 17.6k
8
votes
Global areas below sea level dataset?
You could try building one using a global Digital Elevation Model. There are several freely available like TanDEM-X, SRTM, or ASTER GDEM. You'd have to look for all the pixels containing a negative ...
- 7,729
7
votes
Accepted
Why does NOAA no longer provide sunshine data?
It was not discontinued
Using the Climate Data Online tool from NOAA's website, I was able to get sunshine data through March 1st of this year for both major airports in my metropolitan area.
...
- 3,366
7
votes
Accepted
Freely available and re-distributable weather observations over the US?
Such a dataset can be found via the NCDC. Here is the main gateway. My 'go to' place for high temporal resolution data from NCDC is the 5-minute ASOS data.
- 8,684
7
votes
Accepted
What kind of data is best shown in a rose diagram?
Rose diagrams, also called polar bar plots, are useful for showing azimuthal (directional) data. Any dataset consisting of lots of measurements of direction or orientation could be visualized this way....
- 11k
7
votes
Where can I get archived hourly wind speed data for Germany?
The MERRA dataset has data for the world from 1979 to date. It updates frequently.
You can get the data as HDF or NETCDF. If your GIS package doesn't read those, there will be translation packages ...
- 4,090
7
votes
Accepted
Street and road data
Google Maps and MapQuest have gathered data and information through subcontractors and their own internal efforts. Their information is proprietary and is very hard to gain access to (and most methods ...
- 572
7
votes
What is the (average) velocity of ocean currents?
This is not meant to be a comprehensive answer:
Sometimes the easiest way to calculate the velocity of an ocean current is to take the published transport of the current and divide by the total depth ...
- 15.4k
7
votes
Accepted
High-resolution georeferenced population data
For "historical" population data, you can refer to the Gridded Population of the World (GPW), version 4. This dataset makes available estimates of population at ~1 km resolution (30 arc second) for ...
- 1,258
7
votes
An approximate, piecewise continuous analytical model for Earth's radial density profile useful for numerical integration?
From Table I in the admittedly dated Preliminary Reference Earth Model,
$$
\rho =
\begin{cases}
13.0885 - 8.8381 x^2 & \quad \phantom{000}0\phantom{.0} \le r < 1221.5 \\
12.5815 - 1.2638 x - 3....
- 23.1k
6
votes
Accepted
Where can I get archived hourly wind speed data for Germany?
The most authoritative source for weather data in Germany is the German Weather Service (DWD). They have a climate data center that by now provides historical data free of charge. You can find it here:...
- 994
6
votes
Where can I find the record for the heaviest single-day rainfall ever recorded on any date at a specific location?
Sounds like your question, like most questions about historical data, might be a little challenging to find the right source, as it often is around the world.
But seeing you said Atlanta brightened ...
- 8,713
6
votes
Accepted
If the study of "minerals" is covered by inorganic chemistry
The study of minerals is the field "mineralogy" In some ways it would be a subset of inorganic chemistry, restricted to crystaline materials of natural origin. However, mineralogy includes the ...
- 4,429
6
votes
How to make a Python function return the Moon's gravitational force (acceleration) to calculate orbits?
From my understanding, it should be possible to follow a similar procedure as what is done for calculating the gradient of gravity potential for the Earth (ignoring the potential corrections due to ...
- 233
5
votes
Accepted
where can I download ECHAM climate model data?
Where to find the data
The German Climate Research Center (DKRZ, Deutsches Klimarechenzentrum) hosts the Word Data Center for Climate (WDCC). You can search the WDCC via the CERA Database (cera-www....
- 2,661
5
votes
NCEP reanalysis model levels
Grid Resolution of the NCEP/NCAR reanalysis data
The data is available on different grids depending on the variables of interest:
The original grid is a T62 Gaussian grid, which grid cells do not ...
- 2,661
5
votes
Does anyone have absorption coefficients at different wavelengths for sulfur dioxide?
The US National Institute of Standards and Technology is a good source. The following image show absorbance between 2.5 and 32 $\mu$m. For wavelengths shorter than 2.5 $\mu$m, other sources (less ...
- 17.6k
5
votes
Accepted
How much would weather data from ocean-going vessels improve climate research?
"Ship of opportunity" weather observations have contributed to global data collection exercises since the dawn of meteorology as a science. There are many national and international ...
- 2,010
4
votes
Accepted
Canadian equivalent to AMLIS database?
Try:
Federal Contaminated Sites Inventory
as well as
Crown Contaminated Sites Database (British Columbia)
Orphaned/Abandoned Mine Site Rehabilitation (Manitoba)
Abandoned Mines Information System-...
- 5,962
4
votes
Accepted
Remote Sensing System (RSS) historical atmospheric data continually updated
Being remote sensing, algorithms for inverting the raw data to get physical quantities may be improving with time. Perhaps a slight adjustment in algorithm or calibration happened between July and ...
- 1,207
4
votes
Accepted
Single-layer water content variables
The ERA Interim reanalysis is made by ECMWF and the other reanalysis is made by NOAA. Reanalyzes of the past are made by running global climate models and these differ because NOAA and ECMWF use ...
- 1,064
4
votes
Open Mining facility/operation GIS data
For the US, there are several sources:
Mineral Resources Data System (MRDS)
MRDS is a collection of reports describing metallic and nonmetallic mineral resources throughout the world. Included are ...
- 5,959
4
votes
Format/interpretation of NOAA Elevation Data
If you can find a NetCDF file, I would recommend using it. NetCDF is a very common self-documenting format with libraries widely available for any language that is suitable for scientific data ...
- 11.6k
4
votes
weather forecast data: how to know what to choose
No agency is running 1-km forecasts globally... and certainly not out 14 days. The only 1-km forecasts I have heard of are for small regions and just 2 days. If you can live with coarser data, ...
- 13.5k
4
votes
Is There Data Describing the Velocity of Different Heights of a Glacier?
There are many measurements presented in the literature of the velocity profile of a glacier. However, since all profiles will to some extent be dependent on local conditions, I am not sure how useful ...
- 5,014
3
votes
Accepted
Difference between NCEP's 20th Century daily Forecast and Analysis variables
Some variables in reanalyses have to be forecast and cannot be assimilated to allow the model to converse mass, momentum and energy. Precipitation is a good example. The model will assimilate ...
- 201
3
votes
Wind direction data
You can download the data from the CRU-NCEP database https://crudata.uea.ac.uk/cru/data/hrg/
CRU stand for Climate Research Unit and it has the most accurate historical data available to the public. ...
- 315
3
votes
Accepted
How can I get historical weather data for the United States?
This the portal for the NOAA historical records
https://www.ncdc.noaa.gov/cdo-web/search
You can specify what you are looking for (Summaries, or other), the time range, the area.
They have records ...
- 2,633
3
votes
Where can I get archived hourly temperature data?
ASOS data for all the airports in the world:
https://mesonet.agron.iastate.edu/request/download.phtml
This website also has a lot of other meteorological data for the United States.
3
votes
Accepted
Radiometric dating data sets
It sounds like there are two primary ones:
No, these are not the two "primary ones". The method used depends on what you are dating, and what age you expect it to be.
Radiocarbon dating is relevant ...
- 23.1k
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