Atmospheric correction code in Google Earth Engine (GEE)?

I am looking for options of GEE JavaScript code to perform atmospheric correction of Landsat 7-8 and Sentinel-2 directly within the GEE Code Editor. I intend to use harmonized Landsat 7-8 and...

26 October 2020 7,047 8 View

Purification of Octapeptin C4?

I am doing synthesis of Octapeptin C4 analogues with variable tail moieties as part of my project. I have made the final compound, which is cyclized and all BOCs removed. The problem is, I can't...

16 December 2019 1,730 2 View

How to analyze a two factor RM ANOVA ?

Suppose you have (a) different groups of (m) similar subjects each. You give them all ( i.e the m xa subjects) the same treatment repeatedly for (b) days. You take daily measurements of the...

30 April 2019 8,234 4 View

How to use the values of several categorical variables to create new categories in SPSS?

I will explain my question with a simple hypothetical example. I have a dataset with nodules of the thyroid gland, containing the next three categorical variables: 1. Scan. The value is either...

03 April 2019 6,404 9 View

Help me to formulate this PhD Topic?

The effect of Integrated Soil -Water and Sanitation as an Adaptation Mechanism to Climate Change in Water-Scarce Areas . Can I find also a supervisor?

22 January 2019 3,572 9 View

What are the best references for analyzing data on Stata using statistical functions on the menus instead of typing commands?

I need to analyze data on Stata, but it's a new world for me (I've 25 years of SPSS...) All the tutorials I've found on the internet teach us to type commands on Stata to perform the analysis. I'd...

15 April 2018 5,957 6 View

How do I convert ERA Interim precipitation estimates from kg/m2/s to mm/day?

I want to compare ERA Interim precipitation estimates with ground measurements so i do not know to convert the data from kg/m2/s to mm/day. Thanks in advance Nkiaka

01 March 2016 6,337 16 View

Is there an alternative way of converting Odds Ratios to Risk Ratios without relying on prevalence of a health outcome in unexposed groups?

01 July 2014 5,635 2 View

Can a variable assume the role of a predictor as well as a confounder in the same study? If yes, why? If no, why not?

Example: IN the association between education and family planning, economic status was considered as a confounder. IN the same study, can we consider education as a confounder in the association...

14 February 2014 9,856 8 View

How do I objectively choose a statistical approach when I want to publish?

It is a common concern to hold alpha values at 0.05 and that it is completely arbitrary. I have been interested in using other methods, but I know that there may be pushback from editors to use...

09 September 2013 5,594 5 View

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

How can we simulate an hyperelastic-viscoelastic behavor with Ansys APDL?

I am working on modeling and simulation of biomecanical material behaviour, I have succeded on simulating skin using anisotropic hyperelastic material, on APDL and in our lab's finite element...

28 February 2021 552 3 View

Is this the write procedure for acid digestion of soil for heavy metal analysis using AAS?

How to do acid digestion of soil sample with 3:1 aquaregia in an open vessel?

23 February 2021 3,053 7 View

Are there packages (R or Python) for simple models (bucket?) to assess soil water content?

Hi everyone. I am researching droguht effects on soil water drought. I am looking for already implemented functions in R or Python to estimate soil water content from precipitation,...

21 February 2021 2,084 1 View

Which type of loading is to be used in dynamic analysis of Machien foundation?

Hello Everyone, Hope you all are doing well. I'm trying to simulate a machine foundation in ABAQUS with a geo-cell reinforced soil bed. Im totally confused to which type of loading would be...

21 February 2021 4,388 3 View

Is the box plot of climatic indices better illustrate from daily data or annual data?

Hello, I hope you have a good time. I work on a research project about temperature indices. Due to the high number of indices, I only work on tables and maps on an annual time scale. In other...

19 February 2021 9,742 2 View

What are the options for global scale hydrology DEM?

Hello, I am working on a global scale hydrology GIS project delineating global watersheds and doing some data analysis. I have in the past used hydro1K from the USGS that cover the entire world....

18 February 2021 5,109 5 View

Which books and review articles describe well the current state of deep reinforcement learning for the optimal control of physical processes?

I am going to treat in a lecture the application of deep reinforcement learning for the optimal control of physical processes. Therefore, I am looking for the best references. Besides the classics...

16 February 2021 1,006 6 View

What are the recently methods to estimate low-flow and high-flow time series in ungauged basins?

Hi Is there any new method to estimate ( predict ) low-flow and high-flow regimes in daily scales for ungauged hydrometric stations? Thanks

15 February 2021 3,493 3 View