Snow Depth Retrieval Using Chang's Baseline Model (1987) Horizontal or Vertical Polarisation is suitable?

I am currently doing literature review on snow depth retrieval methods using passive remote sensing. While the algorithm in Chang (1987) says it uses brightness temperature difference at 18 and 37...

31 December 2019 7,428 1 View

Does spatial resolution matters while analyzing distribution of CO2 over landcover?

I am analyzing CO2 data over various landcover classes. CO2 data I have obtained from Envisat - SCIAMACAHY (resolution is 0.5x0.5 degree). And the landcover resolution is 0.25x0.25 degree. If we...

31 December 2013 8,936 1 View

What is the location of the satellite measurement in limb/occultation?

SCIAMACHY which is onboard the Envisat has 3 different modes of measurements. (link : http://www.iup.uni-bremen.de/sciamachy/instrument/modes/index.html) . In Nadir it is easy to understand that...

09 October 2013 880 5 View

How do satellite systems give layer specific measurements?

There are a few satellites in the atmospheric research which give measurements particular to one layer such as troposphere, stratosphere etc. How do they distinguish between different layers? The...

09 October 2013 486 3 View

"Greenhouse gases" - are they cooling or heating the earth ?

Recently I have gone through several articles which are saying that GHG's are actually having a cooling effect on earth...

08 September 2013 6,679 25 View

How to fill the gaps in satellite data?

I have retrieved CO2 concentrations from EnviSat sciamachy's data sets. But for particular months (June, July, August and September) the data quality is poor. In the sense there were very few...

08 September 2013 2,314 7 View

What is the reference coordinate system a satellite takes for measuring profiles are collecting data over earth?

Will there be any reference coordinate system which satellite uses for taking measurements or collecting data on earth? Like SCIAMACHY collects various trace gases on earth but how can we talk...

07 August 2013 7,920 2 View

What are the satellites that available for monitoring CO2 at troposphere ?

What are the satellites available for measuring co2 at reasonable quality in terms of resolution and accuracy at tropospheric level.

06 July 2013 8,264 5 View

What is the exact difference between level2 and level2G products of OMI?

OMI level2 products contain geophysical information at ground pixel resolution and derived from level 1B product. Level 2G (L2G) datasets contain one day's worth of the Level 2 data (typically 14...

06 July 2013 5,467 1 View

How to Convert GOME 2 level 1b product into a level 2 data product?

I have downloaded GOME 2 level 1b data product. I need to retrieve geophysical information from it. But that data will be present in level 2 products only. Help me how to convert it into level 2...

05 June 2013 6,606 0 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

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

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Arena simulation - how do i model the following model in ARENA (see description) (new to ARENA)?

Hello, I'm fairly new to ARENA and I have the following problem: I have two queues in which, in each queue, a different order type arrives (both having an arrival rate of exponential 10). Order...

02 March 2021 2,431 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

Which SAR dataset to use for generating coherency matrix and performing target decomposition (Description) ?

Working on chandrayaan-2 DFSAR data, there are three datasets available: 1) Slant range image data product: The slant range complex image file. Each pixel is represented by two 4-byte floating...

02 March 2021 8,481 3 View

How UAV or drone can be beneficial to better estimate crop yield?

As we know, crop yield estimation has been done traditionally with farmer's expert knowledge, deductive sampling in representative areas, and remote sensing with satellite imagery. Farmer's Expert...

01 March 2021 3,468 3 View