Questions tagged [temperature]

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

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2answers
598 views

How Hot was the Oligocene?

When studying the paleoenvironment of the Oligocene epoch, a period in Earth's history spanning from 34 to 23 million years ago, I had a really hard time understanding what the climate was like in ...
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0answers
68 views

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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1answer
92 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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1answer
669 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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2answers
55 views

Is there less precipitation (rain/snow) in cold weather than in warm weather?

To me it seems that there is a lot less precipitation when temperatures go below -5°C (23°F). Is there any evidence for that? Could this be a local phenomenon (I live in Germany)? What could be the ...
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1answer
606 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 ...
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1answer
192 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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1answer
65 views

How much warming there was over time for a specific month?

I'm calculating warming trends in specific places and periods of time, that are related to the time a migratory bird spends in a stopover. But using different methods I got different results and I'm ...
6
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1answer
109 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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23 views

What 3-day smoke forecasts are height-resolved?

In order to accurately perform weather forecasts during large wildfire events, weather models must include the smoke. Smoke reflects sunlight back to space, decreasing the light absorbed by the ...
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1answer
113 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 ...
3
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1answer
64 views

Are pumps used in geothermal systems?

The water held underground in a geothermal system is under high temperature and pressure. Are pumps used to raise the very hot underground water to the surface or does the water rise under its own ...
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58 views

Which geothermal power plant type is most effecient? [closed]

There are three geothermal systems that are commonly used: dry steam, flash steam, and binary cycle[1]. What are the efficiencies of the plants from best to least efficient? I did a moderate amount ...
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7answers
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Does human body temperature impact climate change?

The human body temperature is about 37 °C (99 °F), so as the population increases does this cause the Earth's temperature to rise?
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132 views

How do we calculate an average temperature for the air above a specific point from weather data?

I'm doing a school project on cosmic rays (using data from the HiSPARC database), and we need to be able to calculate the average temperature of the atmosphere above specific cities on a specific date ...
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2answers
4k 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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1answer
59 views

Where is the hot air for Australia's record spring heatwave coming from?

Spring/September temperature records on Australia's East coast are set to tumble in the coming days, due to a heatwave, as described here. So the hot air is being pulled from the interior of the ...
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4answers
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Do hurricanes cool the earth?

I noticed that temperature drops in the surrounding area of a hurricane. Is the heat converted into kinetic energy? Could the shape of the hurricanes reflect sunlight? Do they create more lightning ...
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0answers
101 views

How to handle leap years when working with environmental conditions time series?

I have a time series of snow and temperature and I want to analyze changes over time for a specific period of time: 15 April - 15 June. In the perpetual calendar April 15 is the day 105 and in a leap ...
2
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0answers
486 views

Interpolation and extrapolation of unstructured data in python: memory error

I have 3 arrays, for longitude, latitude and temperature (so the observations are scattered in space). I want to apply interpolation on these data, but also extrapolation. I 've written the code beow, ...
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2answers
3k 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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3answers
24k views

How to interpolate scattered data to a regular grid in Python?

I have three txt files for longitude, latitude and temperature (or let's say three lists lon, lat, temp) from scattered weather station in the UK. I would like firstly to interpolate these data in ...
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1answer
68 views

Why has the average low for the hottest months in Clearwater Florida about 5 degrees higher than the historical average?

Look up Clearwater Florida on Wikipedia and it gives you the average low for the Months of July and August as being 74.2F. About 3-4 years ago I picked up running as a main hobby and the temperature ...
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2answers
2k views

Could this study “totally dismantle” Global Warming claims?

Could this study "totally dismantle" Global Warming claims? That's the assertion made in the article ‘Bombshell’ climate-change study could totally dismantle the claim humans are causing global ...
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1answer
369 views

Difference in surface temperature between the Northwest Atlantic and Northeast Atlantic

Why is the surface waters in the Northwest Atlantic Ocean colder than the surface waters of the Northeast Atlantic Ocean?
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5answers
619 views

Why does relative humidity seem to correlate with high temperature (at least where I live)?

I live in New Jersey. Now that summer is coming on us, temperatures and outdoor relative humidity are both increasing. I've noticed the few years that I've lived here that there seems to be a rough ...
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0answers
174 views

What are the advantages of analyzing temperature in Kelvin?

I have air temperature data from reanalysis that I want to analyze. The reanalysis data is in Kelvin, so I'm wondering why they use Kelvin. Is there any advantage or difference in analyzing ...
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0answers
48 views

How can I analyze how environmental conditions are related among different sites?

I want to analyze how the environmental conditions along the migratory route of a bird are related to the environmental conditions found at the breeding ground (which it is at high latitudes and we ...
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1answer
109 views

ISA Model and GFS data

I have a newbie question... I always used the International Standard Atmosphere model whenever I needed to calculate the temperature in a given altitude. It always looked accurate to me... However,...
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1answer
159 views

Modified blackbody model of earth. What is wrong with it? [closed]

I have made a modified blackbody model that predict earth temperature distribution with high accuracy. It doesn´t include mass or gases. It is based on the initial thought that all energy above ...
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1answer
89 views

Is the work “The photochemical origin of life” ,by A.Dauvillier, in line of principle still valid today? [closed]

Dauvillier, through his studies, demonstrate that a rise of 2 degrees, of the average temperature of the planet represents a point of no return, beyond which an irreversible process would trigger, ...
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3answers
157 views

How to design an experiment to quantify back radiation from atmospheric carbon dioxide?

Based on our current knowledge of CO$_2$ and current instrumental techniques, how big would a laboratory sample of air with 400ppm of CO$_2$ need to be in order to quantify the back radiation from CO$...
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2answers
1k views

If the earth is a globe, what causes temperature differences across lines of latitude?

If the earth is a globe and the sun is 93 million miles away, why is the equator the hottest place on earth? In terms of distances to the sun, the distance to the equator is almost equal to that as ...
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2answers
6k views

Is winter hotter at the Equator?

I live in the Northern Emisphere. One of the things I have been taught when I was in high school is that winter is colder than summer because in that season we're at an unfavorable angle and nights ...
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1answer
139 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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1answer
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....
9
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1answer
4k views

What is the temperature of the flowing water in icy river?

Boundaries of the question: The question is about rivers where water flows in cold area of the earth. Whether it's because of the winter or it's simply cold all year long. Usually, the top layer of ...
2
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1answer
97 views

National Weather Service “average daily/yearly” (temp, rainfall) life cycle?

Does anyone know the "life-cycle" of the averages used for daily and yearly temperatures and rainfall by the National Weather Service? I have lived in the same (semi-desert) area for over 40 yrs, and ...
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2answers
64 views

Soil moisture conditions and air temperatures - literature needed

I am looking at basics academic papers which tell about the physical floods mechanisms. In particular something that says that: 'lower temperatures reduce evapotranspiration, enhancing wet soil ...
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0answers
395 views

Trewartha climate classification overlap?

By my reading of the wikipedia page on the Trewartha climate classification, climate classifications are not mutually exclusive. Let's take a look at the climate classification of Iowa City, IA. The ...
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1answer
117 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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4answers
3k views

Does climate change cause increase in co2?

My main question is how do we know that increase in global temperature does not CAUSE an increase in co2 concentration? I am trying to develop my mental model of what's going on for the climate ...
4
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1answer
228 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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1answer
125 views

What are the implications of the recent discovery that plants regulate their temperature around 21°C? [closed]

They told us at school and still keep telling our kids that trees don't regulate their temperature, but in 2008 it was discovered that they do. And to me it all makes sense now. It must have serious ...
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3answers
4k views

Temperature rise when snowing

Why does the temperature rise when it is snowing? Is it due to: cloud cover snow requires humid air and warmer air can carry more humidity (so in this case it would be the other way around, i.e. it ...
3
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1answer
73 views

How much of the Earth's heat is caused by the hot centre?

What is the percentage of the Earth's warmth that the Earth's hot centre is responsible for? What would be the temperature of the atmosphere if the Earth's centre was 18° C (average temperature on the ...
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0answers
97 views

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 ...
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1answer
739 views

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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1answer
143 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
189 views

Global Gridded Daily Temperature (at 2m): difference between GEFS Reforcast and NCEP Reanalysis

I am looking for gridded/raster estimates of daily mean temperature (ideally ambient/at 2 meter) for a public health analysis. Specifically, I want to correlate daily mortality counts with daily mean ...