ECMWF or GFS meteorological data are better?

12 December 2014 1 5K Report

ECMWF and GFS global analysis and re-analysis data are often used in many studies and operational activities. Nevertheless, ECMWF or GFS data are better?

Ivan Kovalets

It is difficult to discuss general 'quality' of data. It depends on specific task that you are solving. I cannot say nothing about ECMWF vs GFS. However according to my personal experience and experience of other collegues NCEP GFS final analysis data are certainly better in sense of formal accuracy than NCEP reanalysis data. However reanalysis data retain dynamical consistency and water mass balance. In that sense it could be preferable in many tasks to use reanalysis data.

Badges
Science topic

More George Varlas's questions See All

Which are the dynamical mechanisms of Junge Layer impact on Climate Change?

While searching for cosmic dust and debris from nuclear bomb tests, Christian Junge discovered in 1960 a layer of microscopic aerosol particles between the tropopause and about 18 miles (30 km)...

11 December 2016 3,357 5 View

What is the impact of sea salt aerosols, as condensation and icing nuclei, on the climatic processes?

Sea salt aerosol, which originally comes from sea spray, is one of the most widely distributed natural aerosols. Sea salt aerosols are characterized as non-light-absorbing, highly hygroscopic, and...

08 September 2016 9,614 9 View

How can I change the elevation of some points in e.g. USGS DEM?

The USGS Digital Elevation Model (DEM) data files are digital representations of cartographic information in a raster form. DEMs consist of a sampled array of elevations for a number of ground...

11 December 2015 1,825 6 View

What is the impact of the interaction between oceans and greenhouse gases on the climate change? What will be the climate forcings in the future?

Air-sea gas exchange is a physio-chemical process, primarily controlled by the air-sea difference in gas concentrations and the exchange coefficient, which determines how quickly a molecule of gas...

11 December 2015 6,264 12 View

Which is the impact of cosmic rays on cloud formation and climate change?

Cosmic rays have a slight interaction with clouds. How much significant is that interaction? Can that interaction change the energy budget of Earth and the dynamical processes which interact with...

11 December 2015 5,527 6 View

Are there reliability estimations for the CMIP5 climate models?

Can we assess the errors and the statistical significance of the CMIP5 future climate projections?

06 July 2015 7,325 9 View

What will be the impact of Climate Change on Upper-Air temperature?

Warm or cold scenarios are predicted about Upper-Air?

05 June 2015 4,511 7 View

Is a rise in sea level around the Antarctica able to affect Mediterranean Sea?

The ice around the edge of Antarctica is melting faster than previously thought, potentially unlocking metres of sea-level rise in the long-term, researchers have warned. A team of US scientists...

02 March 2015 2,165 8 View

Is CO2 increasing at all the levels of troposphere? If yes, in which way the global warming is affected by the different temperature of CO2 layers?

In climate change/global warming studies, the Stefan Boltzmann formula is often used to estimate the amount of radiant energy which escapes outward into outer space from earth. The formula is...

31 December 2014 1,161 24 View

Which combination of parameterization schemes in WRF-ARW model is the best to study storms?

In ARW the default schemes in namelist.input for e.g. physics are: mp_physics = 3, 3, 3, ra_lw_physics = 1, 1, 1, ra_sw_physics = 1, 1, 1, radt = 30, 30, 30, sf_sfclay_physics = 1, 1,...

11 December 2014 7,984 4 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

After a reference from Int J Body Compos Res, can any body help?

Hi, I am after the reference below, my library says it cannot obtain a copy either locally or internationally, any help appreciated! Chris Wang ZM, Heshka S, Wielopolski L, Pi-Sunyer FX, Pierson...

03 March 2021 6,193 1 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What techniques can I use to determine the miscibility of polymer blends?

The term miscibility refers to the single-phase state in thermodynamics. I do not mean the compatibility of different components. To determine the miscibility I know several techniques such as...

03 March 2021 4,107 4 View