Questions tagged [temperature]

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

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9
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1answer
124 views

What is the reason for differences between these GHCNM and ERSST data?

The maps shown below are from here. The first shows data from two sources, while the second only shows data from one source. What is the difference between the two data sources used? Where does it ...
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200 views

Where did the daily temperature variation go?

Currently central and northern Europe are experiencing a very cold, false-spring like weather phenomenon. When i look at local weather charts, the daily temperature cycle seems to be completely gone, ...
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515 views

Does earth's size affect the temperature of the poles?

What effect does Earth's size have on the temperature of the north and south poles? If the Earth were larger, or smaller, would this affect those temperatures?
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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: ...
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969 views

Why is it colder in the mountains than at sea level?

I have heard numerous reasons why that is. I just want to know which one is right.
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1k views

Are average daily temperatures affected by DST?

To calculate the average daily temperatures, do meteo professionals still use the Mannheim procedure with twice weighted measurement in the evening? (It could be obsolete by automated weather stations....
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790 views

Are we now and/or have we been in the RCP8.5 scenario?

Is it generally understood that we (globally) have been living in an RCP8.5 scenario over the past 7-8 years? Such that a predictive climate model using RCP8.5 assumptions that was run circa 2011 can ...
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98 views

Is there a formula that gives the temperature of an object or person exposed to the sun?

It is well known that temperature sensors are often shaded, partially to mitigate the variability due to varying cloud cover. However, most people experience temperature within the sunlight. Other ...
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143 views

Do humans cause a DST-related shift in average daily temperatures?

Inspired by the title to this question, is there a shift in average daily temperatures caused by the DST change in human activities? I can picture any number of mechanisms by which a shift could ...
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Why is the Ocean water on the west Coast so cold comparing to the East coast?

Even at similar latitudes they appear to be quite different from one another.
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5k views

Why does the intensity of sunlight depend on your latitude? [duplicate]

People at the equator get to bask in more sunlight than Santa Clause and other inhabitants of the arctic regions. Not quite as pronounced, but they get more than me too. Why is the sunlight more ...
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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 ...
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Are Southern Hemisphere 'Polar Blasts' caused by global warming?

The SMH journalist writes about a cold snap hitting the East Coast of Australia in July 2015: Proof of the big chill will be the extent of regions across Tasmania, Victoria and NSW experiencing zero ...
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156 views

How much could Earth's temperature increase by the time we run out of oil reserves?

According to this article How long will world's oil reserves last?: At the current rate of extraction oil reserves will last 53 years. And according to this another article, Global temperature - ...
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Debunking weather conspiracy with statistics - why does temperature rise then fall for last weekend in June in recent years

I have a conspiracy-prone friend who believes that people are controlling the weather to ensure good weather for a large, annual festival (last weekend in June in San Francisco). As a scientist, (not ...
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5k views

How can we calculate the temperature of the atmosphere, including the greenhouse effect?

I've been struggling to find equations that express how many degrees of warming greenhouse gases contribute, given the composition of an atmosphere (and solar insolation). What I did find was the ...
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62 views

What factor(s) could cause this sort of temperature increase, mid-night/early morning?

I am new to having a PWS (Personal Weather Station). I have not found any answers explaining why this sometimes occurs aside from explanations given factors that were not variables in my case (winds, ...
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207 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 ...
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833 views

Dew point variation in a day

Is this true? "If there are no weather front or severe weather systems, then the dew point within a single day is fairly constant, no matter how large the day/night temperature variation."
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265 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 [...
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Why are deserts hotter than other places on Earth

We all know that deserts are the hottest places on Earth, but what makes them different from other parts of the world?
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732 views

Is there a recent global gridded temperature dataset with 0.1 deg resolution?

I've been searching for a 2017 or 2018 or 2019 (or any combo) gridded dataset for surface temperature for the globe with a 0.1 degree resolution. Unfortunately even after hours of searching, for this ...
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2answers
11k views

Digging depth and heat

I have a question about the underground heat at different distances from the core of the Earth. I was wondering if there was a depth at which you can dig that the decrease in heat (as a result of ...
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269 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 ...
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Relative Humidity approximation from Dew Point and Temperature

I would like to find a formula to approximate RH based on known air temperature and dew point. I need the approximation to be valid at least between -20...+40 degrees Celsius. I read the accepted ...
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75 views

Is lower tropospheric temperature relevant to measure global warming?

So according to this, Global temperature update Last month, the lower tropospheric temperature dropped 0.28 $\sf^\circ$C from February to March, which seems like a huge drop even if it's due to ...
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901 views

SST and air temperature differences

I'm trying to understand what causes the sea-surface temperature (in the open ocean and coastal areas) and the air temperature immediately above it to be different. I know very little about the ...
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118 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,...
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115 views

In the past, why did the levels of individual greenhouse gases rise and fall at the same time?

According to ice core samples from Vostok in Antarctica, methane and carbon dioxide levels seem to have risen and fallen at around the same time over a 450 thousand year period. I was unable to find ...
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As the earth's core cools, will the size be affected?

Objects can change in size when their temperature changes. I'm wondering whether the cooling of the earth's core will affect it's size? Or will the change be insignificant due to the elements and ...
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Is there a way to calculate the ground and 10m temperature from standard 2m temperature measurements?

I am wondering if it is possible at all to calculate the ground temperature and air temperature at 10m above ground from 2m measurements, or at least using data that a standard weather station ...
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Global Land and Sea Surface Temperature Data

We are a spin-off from TU Munich and currently working 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 ...
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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 ...
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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 ...
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166 views

Why is the ocean paleotemperature trend downwards?

In The Encyclopedia of Paleoclimatology and Ancient Environments by Vivien Gornitz (2008, Springer) it is found that 50 My ago the sea temperature was about 13ºC above the present value. . AFAIK the ...
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6k views

Why doesn't it snow even when it is below freezing?

I know the temperature of a place is determined by various factors, a few of which I can think of are: Altitude, distance from sea, latitude, wind etc. My question is basically regarding latitude. ...
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191 views

How to predict when contrails are likely to form over a specific location using public data?

I saw the image below used as a click-attractor to an unrelated story about tourism, but found a larger version here. Contrails, or water condensation trails happen when planes pass through the ...
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183 views

Is there a simple temperature prediction model?

I'm working on piecing together a game that involve sea trading, loosely based on historical conditions. As a part of making the game, I'm creating a map. From that map, I'm trying to determine what ...
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2k views

Deciphering NCDC data

I need US monthly climate data for the years 1992-2012. It would be great to get down to a county level, but by state would be just fine. Every site that I go to inevitably kicks me to the NCDC, but I ...
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83 views

How much energy does the Moon transfer to the Earth, does this affect the Earth's surface temperature?

I'm wondering by how much the gravitation effects, tides etc caused by the moon (and other energy such as moonlight IR) increase the surface temperature of the Earth. So how much warmer than the ...
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1k views

How would I use data to find specific humidity and mixing ratio?

I keep reviewing this table to compare and contrast my results: The parcel of air is at 35°C and a relative humidity of 43%. I used this online calculator and it stated that with these two factors ...
5
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1answer
118 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 ...
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54 views

Does the extension of the absorption line of $\text{CO}_2$ with temperature play a role in the climate change?

I've read not long ago that the absorption line of the $\text{CO}_2$ becomes larger with temperature thanks to Doppler effect (if it's false it would be great to tell me). My question is the following:...
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1answer
125 views

Satellite ocean near-surface air temperature data

For my study, I need to use satellite Sea Surface Temperature (SST) and at the same time I also need satellite air temperature data (Ta) for the first few meters above the ocean. For SST I'll be ...
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275 views

Surface temperature in early hadean period

I am considering earth's internal heat budget for a project in university. For this I need an estimate on the temperature of the earth shortly after it had formed. In Kelvin's On the Secular cooling ...
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146 views

Snow thunderstorms

So why are snow thunderstorms so rare? I researched a bit and it said that it is because there is less moisture in the air. But the percentage of thunderstorms while raining seems much higher than the ...
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1answer
81 views

What is a reasonable range of values for resistance to heat flux?

I am developing a simple parameterisation scheme script to predict surface temperature. The script calculates six heat fluxes including sensible heat flux using a resistance to heat flux parameter. ...
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1answer
137 views

Carbon dioxide and ocean acidification based on temperature

For our assignment, we are required to analyse and compare the $\ce{CO2}$ level (in both ocean and air) of two different sites. Theoretically, shouldn't the $\ce{CO2}$ level of a colder region (e.g., ...
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Climate Change in the North

Why has it been so warm in Moscow, Russia the past few winters where the temperatures even overnight have been above freezing when normally it gets brutally cold?
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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 ...