Find Accurate Weather Logs for Your Astronomy Observations | Natski

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Discussion Overview

The discussion revolves around finding accurate weather logs and elevation data for astronomy observations based on specific geographic coordinates (latitude and longitude) and dates. Participants explore tools and websites that can provide historical weather information, including ground temperature, pressure, and humidity, as well as elevation data.

Discussion Character

  • Exploratory
  • Technical explanation
  • Homework-related

Main Points Raised

  • Natski seeks a program or website that can provide weather logs based on latitude, longitude, and date, specifically looking for ground temperature, pressure, and humidity.
  • Natski also raises a separate issue regarding the ability to find elevation data for given coordinates and expresses difficulty in finding suitable scripts for this purpose.
  • Some participants suggest using existing websites, such as weatherunderground.com, for weather data, but Natski clarifies the need for a tool that accepts coordinates directly.
  • A participant provides a link to earthtools.org, which can return elevation data in XML format when given latitude and longitude.
  • Natski expresses gratitude for the elevation solution provided by the participant.

Areas of Agreement / Disagreement

Participants generally agree on the challenges of finding tools that accept latitude and longitude directly for both weather and elevation data. However, there is no consensus on a single solution that meets all of Natski's requirements.

Contextual Notes

The discussion highlights limitations in available tools for automated data retrieval based on geographic coordinates, as well as the need for specific data types that may not be universally accessible.

natski
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Hi all,

I have photometry from a number of sources with only very sparse details about the observing conditions at the time. The only information I have is the date, the filter and the longitude & latitude of the observer.

Is there any program or website on which one can enter any latitude & longitude plus a date and it will be able to estimate or reproduce the weather logs for that area? Specifically I need ground temperature, ground pressure and if possible humidity.

Any tips would be very much appreciated,

Natski
 
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For that matter, I cannot find anything that would produce the elevation of a given longitude and latitude and would work well with a script...
 
Thanks, but is there anything where you enter longitude and latitude rather than the name of a place?

Also, the elevation problem remains unsolved. I have found several java scripts on the web but nothing which one could easily link into a code.

Natski
 
Hmm...not sure about lat and long. I think you may have to manually find the nearest town.

...what elevation problem?
 
Hmm that's a great shame... it would make an automated script somehow impossible (or at least from my point of view).

Elevation problem - I am referring to other problem I posed: is it possible to somehow input long & lat and output elevation of that target (i..e altitude above sea-level). I have found java scripts to do this but nothing which could be linked into a script running on my machine.

Natski
 
http://www.earthtools.org/webservices.htm

I had the same trouble finding elevations from lat/long a few months ago. Then I found the above site. It works quite simply, submit the lat and long in the url and it'll return some XML that includes the elevation.

example:
http://www.earthtools.org/height/52.4822/-1.8946
 
Last edited by a moderator:
That is excellent, exactly what I was looking for! Thank-you so much.
 

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