Praveen Kumar Mishra

12 Questions 10 Answers 0 Followers

Questions related from Praveen Kumar Mishra

WA and WA-PLS regression method in pollen analysis?

Can anyone please help me to understand the application of WA (weighted average) and WA-PLS (weighted average-partial least square) regression methods in pollen studies in simple language? Thank you

28 October 2022 3,938 0 View

Climate models and Proxy data?

How the proxy data (from lacustrine records) are useful to validate climate models for future climate predictions? Any suggestion would be great. Thank you

10 October 2022 3,473 1 View

Looking for a book- "Radiocarbon dating practices at ANU" by Gupta and Polach ?

I am looking for a book "Radiocarbon dating practices at ANU" by Gupta and Polach, published in 1985. Can anyone please provide the link or source from where I can get this book? Thank you

14 February 2020 6,636 2 View

Factors needed to calculate the hydrological budget (HB) of any region?

Hi, I would like to calculate the hydrological budget (HB) of the region which is partially covered by forest and heavily influenced by human activity. As I understand, the hydrological budget...

18 October 2019 9,616 3 View

How significant p-value is related to the sample size?

In a correlation analysis, is there any rule/assumption that we should follow to calculate the p-values? For examples, (1) r (between Al2O3 and TiO2) = 0.65 n (observation) = 15 (2) r...

03 May 2019 9,225 6 View

Why Paleoclimate modelling is more difficult as compared to the modern climate modelling?

Hello everyone, Recently, I was looking for some basic article regarding climate modeling, I found some interesting fact that some of the authors considered paleoclimate modeling is a very...

17 January 2019 8,322 4 View

What is the difference between Delta, Lagoons and Estuaries; and is Sunderban is an example of delta or estuary?

I am a bit confused about the terminology used for Sunderban (in West Bengal, India). Is it a delta or estuarine settings. Or I would say, Sunderban is a complex system of the delta which...

09 June 2018 9,837 4 View

How do I compile Hysplit trajectory from several months in one plot?

I want to plot air parcel trajectory pattern for June-1997; June-2002 and June-2014 in one plot. Using Hysplit, is it possible to compile the trajectories from several months in one plot?

12 August 2015 2,425 7 View

In radiocarbon dating, what does pMC indicates?

How can you calibrate pMC dates? e.g. what would be the calibration values for 130±2 pMC.

17 February 2014 4,019 7 View

What is the 1-sigma and 2-sigma error in radiocarbon dating?

What is 1-sigma and 2-sigma error in the radiocarbon dating and how to decide which error range we should use for the data set?

06 November 2013 8,418 9 View

What is the meaning of D(4,3) and D(0,5) values in grain size analysis and how is it calculated?

I tried to understand the meaning of D(4,3) and D(0,5) values in grain size analysis, but everywhere it is written that these values are volume weighted mean and surface weighted mean. I do not...

28 February 2013 2,778 10 View

Is it possible to date the bacteria extracted from the soil (by any of the dating methods).

I have the sediment cores and i would like to date the sediments using bacteria.

13 September 2012 9,843 3 View