Unanswered Questions
134 questions with no upvoted or accepted answers
14
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197
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Will global climate change alter the interannual and/or intraseasonal variance of temperature and/or precipitation?
A quick skim of the regional chapters in AR5 shows predicted changes to average temperature and precipitation. If I understand (in rough terms) the modelling methodologies used, a variety of models (...
10
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97
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What field studies have developed or supported the Penman-Monteith equations for estimating evapotranspiration?
I'm trying to understand transpiration estimation methods. The FAO recommends a standard Penman-Monteith methodology for modeling evapotranspiration based on meteorological and vegetation parameters (...
10
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0
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299
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What is the smallest grid spacing that Eulerian air quality models should use?
The University of Washington runs the Advanced Research Weather Research & Forecasting (WRF) model in predictive mode, and then tests the skill of the model anywhere from 12 - 84 hours out from ...
9
votes
1
answer
457
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What is the difference between the freezing level and 0 C isotherm in NOAA's GFS?
I'm playing around with NOAA's GFS forecast data and I see that it contains both a "0 °C isotherm level" and a "Highest tropospheric freezing level". Could someone tell me the ...
8
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0
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46
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How do you determine the % of precipitation falling as snow in the case below?
I have just started a course in hydrology (a totally different field from mine which is computer science) and I can't find the link between the fact that a river flows into a lake and the % of ...
8
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74
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By how much did the Earth's diameter decrease due to cooling, if at all, since it was formed?
The answer to How long until Earth's core solidifies? question cites an estimation that the Earth (as a planet, not the surface of it) has cooled down by about 250K since it was formed. The question ...
8
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0
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458
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Monitoring air pollution with Landsat satellite data
I'm trying to build an air pollution model. So far I have built one for point sources. Now I'm looking at monitoring air pollution with satellite images, based on the idea that every basic pollutant ...
7
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59
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Could the Pineapple Express collide with cold air, resulting in extreme snowfall?
The pineapple express is a colloquial term for the strong atmospheric river produced by the polar jet stream, which drives excessive moisture and warmer air towards north-western North America. With ...
7
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79
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Global Land and Sea Surface Temperature Data
我们是一个副产品从你目前慕尼黑和磨破king on equipping a CubeSat with a thermal imager. The imager should be able to acquire thermal/ir images with resolution of about 200m/px. In the ...
7
votes
0
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649
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Why did the GFS switch to hourly forecasts through hour 120?
About a month ago, the GFS was upgraded. Among other things (like making parallel GFS data available), the upgrade notice said: Include hourly forecasts out to 120 hr Now, this seemed ...
6
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81
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Why is the air above the Himalayas warmer than surrounding areas?
Looking at earth.nullschool.net on13.09.2021you can see that the temperature above the Himalayas appear warmer than the surroundings (at 700 hPa): At the surface ...
6
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104
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Are there rules to estimate average temperature
I have temperature data from a weather station, but there are missing data (not more than 80% of the daily temperature observations). The World Meteorological Organization has some rules to validate ...
6
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62
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Estimating fog incidence based on ocean temperature
In the tropics, say the Caribbean, I have read that there is very often a lot of nighttime and morning fog. I have read that the crucial factors are The ocean temperature Cool nighttime air ...
6
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0
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69
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Near Future Precipitation and Temperature estimations?
I was wondering if anyone here is familiar with temperature and precipitation estimation? I need to estimate P and T from April to July 2016. I am planning to use excel to do the calculation because ...
5
votes
0
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91
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What are those precipitation and water droplet characterization instruments called that they put on meteorological aircraft? How do they work?
很久以前在米氏scatteri我做了一些阅读ng and atmospheric particulate counting and I got sidetracked on raindrop characterization. I remember reading about light and laser based ...