Frank Veroustraete

5 Questions 371 Answers 0 Followers

Questions related from Frank Veroustraete

Has life on Mars never existed, is it past, or is it still present?

Finding life on Mars isn't easy. While NASA's Curiosity rover found that Mars could have once supported life at some point in the distant past, scientists still haven't been able to detect a...

06 June 2016 7,553 3 View

How long before the Earth's oceans become acidic?

Climate change threatens the stability of the Earth's oceansThe dangers posed by global warming to the Earth’s oceans have been investigated by a group of marine research scientists. They insist...

09 September 2015 3,048 3 View

Is the atmospheric CO2 rate of increase already in Runaway Mode?

I recently had a look at the Mauna Loa dataset. Find them at: http://co2now.org/Current-CO2/CO2-Now/noaa-mauna-loa-co2-data.html They are archived and distributed by the NOAA Administration of...

08 August 2015 2,463 34 View

Knowing the standard deviation of RED and NIR reflectance, how does one estimate the absolute error of the NDVI?

The NDVI is used quite a lot to estimate biophysical variables like LAI or fAPAR and others. How can one estimate the uncertainty of these variables without knowing the absolute error on the NDVI?...

11 November 2013 2,303 8 View

How to calculate accurately the Volume of the Earth's troposphere?

The Earth's atmosphere is an important compartment of our planet with respect to climate and its changes. When developing atmospheric models to estimate the Earth's heat balance, estimating the...

01 January 1970 6,569 15 View