Abd-Elrahim Ruby

15 Questions 21 Answers 0 Followers

Questions related from Abd-Elrahim Ruby

Is there a simple method to use pslegend (GMT) to create a legend for 2-D plot?

I am new for Generic Mapping Tool (GMT), but I would like to work through a few simple examples of generating legends (ie. multiple points or lines plotted on a single figure using psxy). In the...

04 April 2018 8,902 4 View

How to use high precise geoid for mineral exploration?

Recently, many scientific applications such as: In geology, the inversion of the geoid is used for Petroleum Exploration. I am looking for studies and research in this field

01 January 2018 7,900 5 View

How to limit a specific area in order to have a topographic 3D map using MATLAB?

I have a special grid* (data.gri ) free format, the grid values are initiated with label of latitude (φ) and longitude (λ) limits and spacing, the follows the data are stored row-wise from north...

05 May 2017 2,890 1 View

What is the difference between "Root Mean Square" and "standard deviation"?

Can anyone help me to explain what the difference between Root Mean Square and standard deviation.

09 September 2016 7,783 3 View

How to overcome this error “Runtime error M6104: MATH floating point error: overflow”?

I am dealing with the code Fortran77 and i am receiving the above massage also I am using Microsoft Developer Studio (Fortran PowerStation) and my computer 32-bit (operating system windows 7)

02 February 2016 3,560 2 View

What are different sites for downloading Digital Building Models (DBMs) ?

I’m looking for a Digital Elevation Digital Building Model or 3d of Building

01 January 2016 8,583 0 View

What are the different sites for downloading best resolution (below 20 m) for free remote sensing imagery?

I am looking for satellite image used for academic purposes

11 November 2015 9,073 9 View

How to convert “raster/image” of digital elevation models (DEM) into “Grid elevation format”?

I have a raster DEM I would like to convert into Grid format

09 September 2015 1,090 5 View

How to run this program "gravity anomaly or gravity in GRS80"?

This program used for computes the gravity anomaly or gravity in GRS80 programmed 1999-01-28, last change 1999-05-17 by Tscherning see attached to Download program (programs in FORTRAN77) i would...

08 August 2015 3,713 0 View

What is the parameters which defining Geodetic Reference System (BEST CURRENT 2008)?

Geodetic Reference System (called BEST CURRENT 2008) identifies four defining parameters. These are the semi-major axis , the flattening factor of the Earth, and the geocentric gravitational...

07 July 2015 2,002 2 View

What are the best sites for downloading SRTM elevation model and the DTM2006 spherical harmonic topographic expansion?

In remove-restore terrain reductions to remove the residual terrain effects on gravimetric quantities, Digital terrain models (DTM’s) and Digital Elevation Models (DEM’s) must be created

06 June 2015 303 10 View

How to run this FORTRAN program?

A description of data used and the results in the following link http://earth-info.nga.mil/GandG/wgs84/gravitymod/new_egm/TEST_RESULTS/results.html The program below

03 March 2015 9,948 5 View

How to Run pyGravsoft in Linux/Unix?

How is that? Linux/UnixMost modern Linux distributions already have python install and there is noinstallation. However in some cases the graphical toolkit is not installed andon fedora for...

02 February 2015 2,459 0 View

How can i get gravity gradient anomalies (Tzz, Txx, Tyy and Tyz) from GOCE?

The data downloaded from GOCE are the gravity gradients of the Earth potential (V).The gravity gradient anomalies (Tzz, Txx, Tyy and Tyz) corresponding to the anomalous potential (T). So , How to...

01 January 1970 6,313 2 View

What is meant by Anomaly degree variances of Global Geopotential Models?

Anomaly degree variances and error degree variances used to Evaluation of the Global Geopotential Models to choose the best for geoid determination or others applications Examole: Comparisons in...

01 January 1970 3,472 2 View