How do I know the date of a web server-assisted satellite image?

Examples: satellite images from google, bing, mapbox, osm servers, available on qgis via xyz tiles. how do I know the date of bing images? availables in QGIS via .WMS, for example.

07 August 2019 978 4 View

Vulnerability intrinsic to groundwater contamination assessed via Electro-Resistivity Method - Vertical Electrical Survey (SEV) for geoelectric layer?

What reference studies (Book, Article, Tesis etc) you know used ER Method was applied using the Vertical Electrical Survey (SEV) technique (Wenner-Schlumberger, dipole-dipole arrays) for...

07 August 2019 5,108 9 View

What is photogeology?

Belongs to Geology and Remote Sensing? What are the main references available for free (pdf) in this field of knowledge? Is it still a usual field within geology? Best Regards.

07 August 2019 3,992 12 View

Geological Map or Stratigraphic Map?

What is the conceptual difference between Geological Map and Stratigraphic Map?

07 August 2019 2,107 26 View

How to properly use google images?

Are Google images free to produce publishable scientific articles? Is it allowed to generate vector data from the interpretation of google images? How are google images cited in the bibliographic...

06 July 2019 2,245 10 View

What are the main attenuators found in the rock-soil vadose zone responsible for groundwater protection?

The vadose zone is the first groundwater protection line, what are the main physical, chemical, biological and other elements capable of attenuating the potential contaminants released on the...

06 July 2019 8,036 3 View

How accurate are the images and of control points compared to satellite imagens of XYZ Tiles in QGIS free software?

What is the accuracy of these images regarding their geo-referencing and how accurate are they for their use of known sites with control points for geo-referencing?

05 June 2019 7,279 8 View

What is basic concept of aquifer system?

What is basic concept of aquifer system?

05 June 2019 8,359 19 View

What classical examples in the literature of contamination by agrochemical and pesticide residues in groundwater in agriculture?

What classical examples in the literature of contamination by agrochemical, herbicide, fungicide, insecticide and pesticide residues in groundwater in agriculture?

05 June 2019 986 27 View

Does anyone know how to indicate a free reference on free geotechnology? Which conceptually encompasses all free geotechnologies?

Does anyone know how to indicate a free reference on free geotechnology? Which conceptually encompasses all free geotechnologies?

05 June 2019 8,209 11 View

error in running a model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

error in modelling model in Abaqus

Excessive rotation of nodes in node set ErrNodeExcessRotation-Step1

17 August 2021 0 0 View

MGL tools

20 June 2021 0 0 View

How climate change will influences human and animal behavioral change?

The role of climate change influencing the human behavior as well as economics interest

01 June 2021 0 0 View

flexibility of polymers chain

effect of double bond on the flexibility of polymers

07 April 2021 0 0 View

i have some problem with chtMultiRegionSimpleFoam

--> FOAM FATAL ERROR: Maximum number of iterations exceeded From function Foam::scalar Foam::species::thermo::T(Foam::scalar, Foam::scalar, Foam::scalar, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar, Foam::scalar) const, Foam::scalar (Foam::species::thermo::*)(Foam::scalar) const) const [with Thermo = Foam::hConstThermo >; Type = Foam::sensibleEnthalpy; Foam::scalar = double; Foam::species::thermo = Foam::species::thermo >, Foam::sensibleEnthalpy>] in file /home/ubuntu/OpenFOAM/OpenFOAM-4.1/src/thermophysicalModels/specie/lnInclude/thermoI.H at line 66. FOAM aborting #0 Foam::error::printStack(Foam::Ostream&) at ??:? #1 Foam::error::abort() at ??:? #2 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::calculate() at ??:? #3 Foam::heRhoThermo >, Foam::sensibleEnthalpy> > > >::correct() at ??:? #4 ? at ??:? #5 __libc_start_main in "/lib/x86_64-linux-gnu/libc.so.6" #6 ? at ??:?

24 March 2021 0 0 View

Formulation of polymer color flakes

I am writing to request some information for making polymer color flakes. I would appreciate the help.

17 March 2021 0 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View