Questions tagged [temperature]

An objective measure of hot and cold, typically measured by a thermometer.

Filter by
Sorted by
Tagged with
30
votes
4answers
35k views

Is it possible for rivers to freeze completely and stop flowing?

Is it possible for rivers to freeze completely in the winter and stop flowing? Are there known examples of this? If yes, how large can these rivers be and where does the water go? There are several ...
11
votes
0answers
129 views

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
votes
1answer
172 views

Sudden Localized Surface Water Temperature Increase In Eastern Lake Superior, Canada

As can be seen in the below sequence of NOAA images spanning 15 hours (most recent at top), in extreme eastern Lake Superior the surface water (but not bottom water) temperature increased dramatically ...
12
votes
1answer
748 views

Dry atmospheric temperature profile (dry adiabatic vs. isothermal)

I'm trying to understand why there are differing predictions of the atmospheric temperature profile. It is well established that the dry adiabatic lapse rate (DALR) is: $$ \frac{\mathrm{d}T}{\mathrm{...
13
votes
1answer
3k views

Are cloudy nights warmer than nights without clouds?

I have noticed this winter that nights without clouds (especially when the 12h before the night where not cloudy) were way colder than the cloudy ones. It makes sense to me because the clouds can ...
9
votes
2answers
6k views

Is the temperature (even a bit) warmer in a forest?

Is the temperature (even a bit) warmer in a forest? For example, there no frost on the ground in a forest when there is some in a field just outside the forest. Is it because the temperature is a bit ...
3
votes
1answer
437 views

What do the researchers in Antarctica wear if they must go outside during winter? [closed]

The Vostok station can observe temperatures as low -90 C during winter. Human skin gets frozen wounds on the spot on direct contact with such cold air and precautions must be made to avoid open ...
8
votes
1answer
133 views

Why does air seem to affect local surface temperatures so much?

Last winter, several areas in the US and Canada were hit by a "polar vortex." I happen to live in one of those areas and was amazed how much the temperature seemed to change so suddenly just because a ...
5
votes
2answers
1k views

Where can I find a table of ocean temperature pressure and depth

What type of data is available for ocean depth and density? For instance, are there measurements of density near Greenland or Antarctica that could be compared to the central Pacific? It would be ...
7
votes
1answer
250 views

Resources to determine temperature probability for a given location on a given date

What tools or resources are available (free) on the web to determine the probability of a given point on the earth to be at or above (or below) a specific temperature on a specific date. Some [...
18
votes
2answers
2k views

What happens to global temperature when we stop all the vehicles for a year?

I know this is a very simple or naive question but am just being curious. How would the global temperature change if all vehicles stopped for a whole year?
11
votes
1answer
2k views

Why is colder seawater more compressible?

I know compressibility is related to the pressure and temperature of the water parcel, but what is the physical/molecular reason as to why colder water is more compressible?
10
votes
2answers
655 views

Does the long-term ice-core temperature record provide reasonable evidence that the current temperature trend is not anthropogenic?

When looking at the long term ice-core temperature record, it very clearly shows a ~100,000 year cyclical trend with warming spikes and gradual cooling. To the untrained eye, it seems that such a ...
14
votes
1answer
526 views

Temperature as a function of luminosity and greenhouse gas concentrations

The evidence seems clear that there is an interrelationship between solar luminosity, greenhouse gas concentrations, and temperature. Has temperature as a function of luminosity and greenhouse gas ...
14
votes
1answer
238 views

Odd structures in 66 year NCEP daily temperature reanalysis

I have done some simple analyses of historical surface temperature from the NOAA NCAR/NCEP reanalysis (downloaded from ftp://ftp.cdc.noaa.gov/Datasets/ncep.reanalysis.dailyavgs/surface/air.sig995.*.nc)...
9
votes
1answer
466 views

How can I downscale daily values of relative humidity?

I have a dataset (The ISIMIP interpolation of CMIP5 output) that contains daily values of the following variables: ...
14
votes
2answers
6k views

July/August hottest months (northern hemisphere): because of continued warming or other effects?

In the northern hemisphere, July and August are the hottest months statistically1, but the days start shortening after June 21st. Is this just because the Northern Hemisphere keeps heating up after ...
11
votes
3answers
225 views

Is it right practice to validate temperature data with reanalysis data?

For a project I am working on I received raw data from many meteorology stationes. Is it right practice to test this data against air temperature from noaa's ncep/ncar data?
19
votes
2answers
14k views

Where can I get archived hourly temperature data?

I am looking for historical hourly temperature data from many cities in the US what other data sources are there except wunderground? UPDATE: I will use the data to compare stations from the same ...
13
votes
5answers
4k views

How to reduce the atmospheric temperature artificially?

Is there any gas/substance which absorbs/reduces atmospheric temperature? Ozone filters UV rays from the sun light and allows in infrared rays. In my knowledge these infrared rays are the cause of ...
7
votes
1answer
188 views

Why is the warm phase of the Pacific Decadal Oscillation associated with stronger El Niños?

This is a question inspired by the post at Cliff Mass Weather Blog: "Is a Super El Nino Coming Next Winter?". There is something else. You ever hear of the Pacific Decadal Oscillation? This is ...
5
votes
1answer
112 views

How common is it for warm fronts to be responsible for record high temperatures?

Warm fronts are associated with an increase in temperature and precipitation. But are they often associated with record high daily maximum temperatures, given that they often result in an increase in ...
11
votes
1answer
509 views

Why is Montana warmer than Wyoming?

The National Climatic Data Center (NCDC) data shows the mean temperature from 1971-2000 for Montana was 5.97°C (42.74°F) and Wyoming's was 5.54°C (41.98°F). Montana is at a higher latitude, so this ...
37
votes
3answers
35k views

What would be the temperature of earth if there was no atmosphere?

I do know that the atmosphere protects life on Earth by absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect),and reducing temperature extremes between ...
13
votes
1answer
2k views

How accurate are climate proxies in giving us a clear picture of global average temperatures throughout Earth history?

Since reliable modern records of climate only began in the 1880s, proxies provide a means for scientists to determine climatic patterns before record-keeping began, though it appears that the the ...
7
votes
1answer
1k views

Is this graph showing the average temperature on Earth going back millions of years accurate?

Looking for a historic record of the average temperature on Earth going back millions of years, and this 2002 graphic the from the PALEOMAP Project is currently the best I am able to find. Is it ...
6
votes
0answers
68 views

Is global warming occuring only because of humans? [duplicate]

I learned that human activities produce gases that deplete the ozone layer, and create the greenhouse layer, which increases the world's temperature. (And seems real , now in Thailand it's 35 degree ...
12
votes
1answer
469 views

Did global warming cause the extreme cold 2013-14 winter in North America?

There have been some claims made (example) that global warming had something to do with why the 2013-2014 winter was so cold in the Midwest area of America. If this is true then how did global ...
16
votes
5answers
5k views

Is the Earth's hot inner core necessary for life?

The inner core of the Earth has an enormous temperature of around 4300 degrees Celsius. Is this large inner core temperature an important factor contributing to the ideal temperature that is ...
6
votes
1answer
244 views

How can I calculate the average latitudinal temperature anomaly between a city and all other locations along the city's latitude?

E.g. How could I calculate the average temperature anomaly between, say, Boulder, CO and all other locations along the 40N parallel? What about Boulder, CO, and all other locations along 40N at ...
17
votes
3answers
1k views

How do I explain why the Tibetan plateau is colder than lowlands at similar latitudes?

A common layman explanation for why does it get colder to higher elevations (considering only the troposphere here) qualitatively boils down to The Sun heats the Earth's surface and the Earth's ...
9
votes
1answer
1k views

How does the pole-to-equator temperature gradient scale with height contours?

Are the pole-to-equator temperature gradients lower at higher heights than at lower heights (like 850 mb/500 mb)? If so, why is it the case? Especially given that the zonal circulation tends to be ...
6
votes
1answer
115 views

Are certain isobar temperatures higher in mountainous regions?

So we know that the air temperature at higher elevations is lower. But is the air temperature at a certain isobar over, say Vail, Colorado, higher than the air temperature of the same isobar over, say,...