Monhtly Evapotranspiration Data ?

Hi ! Which country provide monthly evapotranspiration data (average evapotranspiration per day for a given month)? These could be monthly historic average or provided by Advance Programming...

01 February 2020 8,872 3 View

Where can I find the organic matter content (%) to compute Soil Erodibility ?

Where can I find the organic matter content (%) to compute the Soil Erodibility Factor S ? I tried the HWSD database, but it only provides the % of Organic Carbon. Thanks!

10 November 2018 1,530 4 View

Daily effective Rainfall in Thailand?

Does anyone has a simple empirical formula to compute Daily effective Rainfall for any location in Thailand? Thanks

06 July 2018 4,370 3 View

Daily Effective Rainfall in India?

Here is the FAO Dependable Rain Method to computes MONTHLY effective rainfall http://www.researchjournal.co.in/upload/assignments/8_109-115.pdf Pe = 0.8 P - 25 if P > 75 mm/month Pe = 0.6 P -...

06 July 2018 8,533 5 View

Subhumid climate maps for India and South East Asia ?

Does any one know which areas of India and South East Asia would qualified as being sub-humid ? Does anyone has a precise climate map for these areas ? Does subtropical also mean sub-humid? Thanks

05 June 2018 8,118 2 View

Computation of Effective Rainfall in India?

Can I use the the FAO Dependable Rain Method to computes monthly effective rainfall? Pe = 0.8 P - 25 if P > 75 mm/month Pe = 0.6 P - 10 if P < 75 mm/month with P = rainfall or precipitation...

05 June 2018 2,439 5 View

Computation of Rainfall Erosivity Factor ?

04 May 2018 5,111 2 View

Computation of Effective Rainfall in Australia ?

Is there any way to compute effective rainfall in Australia ? Like the the SCS-CN method for the US. It has to be specific to Australia, preferably from observation/experimentation in the field...

04 May 2018 6,596 2 View

What simple formula exist to compute daily effective rainfall in the US?

I am trying to optimize irrigation cycles. Is there any way to compute daily Pe to be used in the formula? I = ETc - Pe I am able to compute monthly Pe, but not daily Pe.

02 March 2018 8,523 3 View

Can polymer concentrations be calculated based on the number average molecular weight?

Hello, I spin-cast two different polymers onto wafers and measure their height as a function of initial concentration. For polymer A, I have the weight-average molecular weight (Mw) as well as...

28 February 2021 7,882 2 View

How to resolve Gaussian error termination " Error termination via Lnk1e in F:\G16W\l103.exe" for TS(QST3)?

When I run the job for TS(QST3) in gaseous phase, it was completed without any error. But when I add water in CPCM model it terminated with an error: Inconsistency: ModMin= 2 Eigenvalue=...

21 February 2021 3,198 2 View

Using the Pfaffl method: Is it possible that the ratio of the calibrator does not equal 1?

Hi all, I have a question regarding calculations using the Pfaffl method. I have 3 groups per experiment: 1 control group (calibrator) and 2 treatment groups with 6 to 7 biological repeats per...

19 February 2021 8,351 2 View

How to consider effects of rapid warm adaptation in modeling of ecological impacts of warming?

I would highly appreciate it if my fellow ecologists (biologists) provide their opinion on the thoughts below [esp., shortly tell us which path may be more effective, if they know another way, if...

15 February 2021 3,642 6 View

How to calculate the sample size in an interobserver variability study?

Hi I am conducting an interobserver variability study where we have 12 raters who are going to rate samples of lesions. They will rate up to 10 variables per sample. Although the size of the...

12 February 2021 7,276 3 View

I have a problem with sensible heat flux (H) iteration process in Sebal model?

In each iteration, I get the same value of H for different values of aerodynamic resistance and the temperature difference between two heights. Do the results make sense? Is it necessary to adjust...

07 February 2021 8,953 2 View

How to calculate radial distribution function (RDF) of a complex from Ab initio MD simulation trajectory?

Hi all, Is there any software or webserver to read the molecular dynamics (MD) simulation trajectory which obtained from Ab initio MD simulation to calculate the atom-atom radial distribution...

25 January 2021 9,474 3 View

Solving diffusion- reversible chemical reaction equation: How to solve both terms numerically?

I am using finite difference method to discretize the parabolic equation (explicit method), but confused about the chemical reaction term. Solving the generic equation for i specie involves a...

24 January 2021 1,149 18 View

Doubt in DFT geometry preparation?

Hi all, I am trying to perform some ab inito DFT calculations using cp2k code. I have a unit cell of 120 atoms and would like to know how to refine or reduce the number of atoms in the unit cell...

20 January 2021 6,024 3 View

Why it is required to optimize a unit cell generated from cif lattice parameters and atomic coordinates during ab initio solid state calculations?

A cif file represents a unit cell with minimum energy. My question is, in the start of any ab initio calculation for unit cell generated from the cif file, why we are advised to optimize cell...

19 January 2021 9,883 3 View