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Post by desiccatedi85 on Nov 15, 2022 11:47:27 GMT -5
As elevation increases, diurnal variation actually decreases usually. That’s not true. The air is thinner at higher altitudes, so it warms up faster during the day and cools down faster during nighttime. Calama, Chile, located at 2000m above sea level, has diurnal ranges of 20C. Lol that's complete bs. Compare valley Tujunga, California with huge diurnals to nearby elevated Clear Creek, which has much lower diurnals.
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Post by massiveshibe on Nov 15, 2022 12:08:35 GMT -5
That’s not true. The air is thinner at higher altitudes, so it warms up faster during the day and cools down faster during nighttime. Calama, Chile, located at 2000m above sea level, has diurnal ranges of 20C. Lol that's complete bs. Compare valley Tujunga, California with huge diurnals to nearby elevated Clear Creek, which has much lower diurnals.
I couldn’t find any climatebox in Clear Creek’s Wikipedia page. I don’t know where you found that climatebox but I’m not sure if it’s from a trustworthy website. en.m.wikipedia.org/wiki/Clear_Creek,_Lassen_County,_California Lots of other factors affect diurnal ranges and elevation is one of them. But the biggest factor is proximity to large bodies of water. Salta, Argentina and Asunción, Paraguay are both on the same latitude and far away from bodies of water, but Salta has slightly higher diurnal ranges due to it being located at 1000m above Asunción. Puno, Peru, is at almost 4000m above sea level and the diurnal ranges are much higher than both cities, especially during winter. |
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Post by AJ1013 on Nov 15, 2022 13:03:20 GMT -5
All else equal higher elevations have a greater diurnal range
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Post by greysrigging on Nov 15, 2022 15:02:35 GMT -5
Horsham, south western Victoria ( 128m asl ) has average diurnals of 18c in the summer months. Dec - 10.4c/28.4c Jan - 12.5c/31.0c Feb - 12.6c/30.6c  Then Mount Elizabeth, north western Kimberley of Western Australia ( 550m asl ) has average diurnals of 20c during the dry season winter months Jun - 9.2c/28.3c Jul - 8.2c/28.5c Aug - 9.3c/30.5c  |
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Post by srfoskey on Nov 19, 2022 12:51:06 GMT -5
Mountaintops have low diurnal ranges. High elevation plateaus and mountain valleys tend to have high diurnal variation. A mountain valley is often higher in elevation than a low-lying area.
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Post by Benfxmth on Dec 14, 2022 8:44:41 GMT -5
Even though I voted high variation, ideally there should be a bit of both. I definitely don't want either the whole time. I like when diurnals generally stay in the 10-30°F range, large enough to be interesting but small enough to not feel extreme. In general, a year should ideally see the largest one-day diurnal ranges (not the average) in the shoulder seasons (spring and fall). As for the elevation/diurnal ranges correlation question, like srfoskey mentioned earlier, it mostly boils down to topography rather than elevation itself (i.e. a mountaintop would see much smaller diurnal ranges than an elevated plateau). |
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