15 Questions 36 Answers 0 Followers
Questions related from Gianmarco Alberti
Dear colleagues, I'm currently working with Mediterranean Sea current data from Copernicus Marine Service (CMEMS), specifically their gridded products in NetCDF format with 4km resolution. Does...
23 January 2025 6,477 1 View
Hello All, I am having some a hard time getting hold of the following article: Generalization of Cramer's coefficient of association for contingency tables : theory and methods by Sadao Tomizawa,...
21 November 2024 4,112 0 View
Does anyone have access to the following (quite old) article: A sample size correction for Pearson Chi-Square in 2 × 2 con... It would seems that I have no institutional access to it, and i was...
30 August 2023 6,025 1 View
Hello, I am looking for suggestions as to how solve what follows. Let's assume I have some Thiessen polygons built around some locations (crosses in the attached image). Some points (red dots...
12 January 2018 6,838 4 View
I seem to recall that a ArcGIS toolbox was available somewhere on the WEB that provided the facility to process a DEM in order to get different types of rilief visualizations (e.g., PCA of...
04 August 2017 3,565 3 View
Hello. I have a point shapefile representing the location of weather stations; for each point, the wind speed and wind direction (in degrees) is recorded. I need to create a cotninous surface...
27 April 2017 6,018 10 View
Hello. As per title, I was wondering if the Wind and waves atlas of the Mediterranean Sea is freely accessible, and if it is, from where (and/or from what institution). Best Gm
10 March 2017 3,663 3 View
Hello All, as per title, I am rather confused as to using slope raster in degree or percent when implementing Tobler function in GIS. Some sources (A, B, C) seem to point to slope degree, while...
17 January 2017 7,946 23 View
In Sheskin's Handbook of Parametric and Nonparametric Statistical Procedures, for each categorical association coefficient (e.g., Pearson's C, Pearson's phi, Cramer's V), the Author also takes...
03 November 2016 6,064 2 View
In Logistic Regression (as in regression in general), when it comes to check model's diagnostics, one has to check for observations with higher-than-average leverage. From what I read in several...
30 September 2016 4,689 3 View
I was wondering if anyone has ever come across ceramic disks from prehistoric contexts, huts in particular. By ceramic disks I mean sherds from pots' wall, reworked in such a way to eventually...
01 May 2016 8,130 25 View
Hello, I have found an interesting study in which the author elaborates on the relation between millstones (also termed metate) and handstones (also termed manos) size and their efficiency in food...
25 February 2016 3,209 4 View
I am wondering if anyone here has ever dealt with spatial autocorrelation using Logistic Regression in GIS. In the literature I have read so far, sometimes the issue is not even addressed. In...
31 July 2015 5,956 12 View
Hello, As per title, I am wondering if is it possible to find on the web a free resource for GIS shapefiles (georeferenced) of the Mediterranean basin, or even of the whole Europe and northern...
01 October 2014 6,698 9 View
Hello. I was wondering if anyone knows about the availability of free data on tides and currents in the Mediterranean area. In particular, I am interested in south central Mediterranean (Sicily...
30 September 2014 6,006 12 View
