Why water moves in counter clockwise direction vertically through any conduit in Northern Hemisphere, but reverse in Southern Hemisphere?

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What are the general explanations of change from bimodal to unimodal distribution of a variable in complex adaptive system ?

Let us suppose, we have a time series data of a variable and I am interested in change in the distribution of that variable over two time frames of equal size (long enough to discard pathologies...

04 May 2018 2,453 2 View

What is the effective change point detection technique for identifying the changepoints in a higly skewed data series?

Suppose I want to analyse 100 year of monthly mean flow data of a particular month.

01 February 2016 5,737 2 View

How does the assumption of independent and identically distribution plays a role in obtaining an unbiased estimator?

Suppose I chose samples from a population where the sample are not in the framework of iid ness, does it mean that the sample estimate of the mean will be biased? Here we are thinking of a highly...

01 February 2016 5,349 5 View

Is there any good book or study materials on Applications of Pattern Recognition and Machine Learning in Hydrology and Water Resources Systems?

I am looking for the materials where applications of methods in statistical learning in hydrology is explained.

10 November 2015 3,074 3 View

What are the conditions of using simple water balance equation?

Simple water balance equation, P = E + Q, where change in storage can be considered negligible. Apart from having sufficiently long time series of observation of hydrologic variables like...

11 December 2014 6,997 15 View

Where can I find the good illustration of different downscaling methodologies for precipitation?

I am basically trying to understand different methodologies for common statistical downscaling where it is dicussed in detail.

10 November 2014 6,846 3 View

How to calculate the retrograde series in the sequential Mann Kendall rank test?

It is needed to determine the change point of trend in the streamflow series.

08 September 2014 6,728 1 View

How pattern recognition techniques can be beneficial in identifying the most serious hydrological shifts or phenomena in long term streamflow?

Can anyone give any methods or techniques which can be used for identifying patterns in a long term streamflow?

07 August 2014 1,192 4 View

What is the best method for detection of change point in streamflow time series?

Petit test, Double mass curve technique, Mann Kendal Rank Test etc...which is more hydrologically significant technique for change point detection. Please help me.

07 August 2014 6,334 12 View

• What the possible Persistent Organic Pollutants and Heavy metals present in fluorspar, sediments, and water bodies around its mining area?

Approximate concentrations are require in compared with the WHO permissible limts

11 August 2024 2,723 1 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Do interactions between biosphere, carbon cycle, & water cycle impact global warming & interaction between atmosphere & hydrosphere?

How do interactions between the biosphere, the carbon cycle, and the water cycle impact global warming and interaction between the atmosphere and the hydrosphere?

09 August 2024 3,291 2 View

Is it true that $\det(V(A))$ may be only $\pm 1$, depending on $n$, for the last symmetric tridiagonal matrix $A$?

One can try to generalize the Vandermonde determinant in the following direction: Let $A$ be any symmetric $n$-order square matrix. Consider its powers' diagonal elements $(A^k)_{ii}$ and...

08 August 2024 6,690 1 View

How to Add Missing Water Molecules in Protein-Membrane Simulations?

I have protein-membrane simulations (PDB, PSF, DCD) and have noticed that water molecules near the protein are not visible in the simulations. How can I fix this issue? Is there a way to place the...

04 August 2024 1,200 2 View

Why is nonpoint source pollution potentially more harmful and difference between point and nonpoint sources of water pollution?

01 August 2024 1,180 2 View

How do living organisms play a role in the water cycle and why is nonpoint source pollution potentially more harmful than point source pollution?

01 August 2024 7,061 2 View

The use of data from PubChem for commercial purposes?

Hi, I'm curious to know if data on chemical compounds from PubChem, such as water solubility properties, can be used to train a machine learning model for commercial purposes. Will this infringe...

30 July 2024 8,707 1 View

What are the best practices to combat water scarcity in arid and semi-arid regions?

Water scarcity is a significant issue in arid and semi-arid regions due to limited rainfall and high evaporation rates. To address this challenge, various strategies and practices have been...

28 July 2024 7,611 2 View

What are the best innovative materials for harvesting water in arid and semi-arid regions?

Water scarcity in arid and semi-arid regions necessitates the development of innovative solutions for water harvesting. Researchers and engineers have been exploring various advanced materials...

28 July 2024 594 6 View