Aug 30, 2021 · As mentioned above, I wanted to devise an equation that can relate the colour of a surface to the temperature on the surface. I tried using the general definition of albedo and combining it with the Stefan-Boltzmann equation (see above, Relevant Equations). However this means that the higher the...

Sep 21, 2010 · 1. This question isn't so much a homework question per se, however I am having difficulty using certain equations to find the albedo of the Earth. In attempting to find the albedo, I am using two equations, shown below, however each equation gives a different answer. I am given the following...

Aug 23, 2016 · I've done the calculation myself with a chosen albedo of .12 (that of Mercury and the Moon) to hold it constant, and as expected Venus is hotter. So if albedo depends on atmosphere, why is everyone who does this calculation for temperature without an atmosphere just using the known albedos?

Apr 21, 2016 · I thought emissivity = 1-albedo, so, the ratio of radiation absorbed (and therefore emitted) compared to the total incident radiation, because radiation is either reflected or absorbed then emitted, right? So, according to values on the internet, snow has an albedo of 0.9 (Wikipedia) and an emissivity of 0.969+ (EngineeringToolbox).

Dec 15, 2018 · Albedo usually applies to planets or other large astronomical bodies that receive radiation energy. It is a number between 0 and 1 that represents the fraction or the proportion of the total radiation energy incident on the body that is reflected back into space without being absorbed by the body.

Mar 26, 2012 · Albedo is a reflection, so emissivity + albedo = 1, for opaque objects. There's probably some spectral weighting involved in the definition of albedo.

Jun 8, 2012 · We regularly use a FLIR camera for testing at my company. The emissivity value for the test product was determined experimentally. Multiple thermocouples were placed on the actual part and the emissivity value of the IR camera was "calibrated" until acceptable results were obtained that correlated to the thermocouple values. We also discovered that the IR …

Dec 18, 2018 · Arctic ocean once thawed makes for more winter snow up north, gradually increasing snow cover, raising albedo, hence cooling things until it freezes again and reduces winter snow...

Oct 1, 2011 · The process should be the same for each one. Homework Statement Problem: 1. Assuming the impact velocity is the same as nozzle exit velocity, calculate the theoretical impact velocity. 2. Using the theoretical equation for the impact force of a jet, calculate the impact force. 3. Compare the theoretical and measured values. Data: ρ = 1000 kg/m^3

Mar 23, 2011 · The ideal gas equation gives its initial pressure as about 100 mBars. If the ambient air is at standard temperature and pressure (about 15 degrees C and 1 Bar), how fast will the water-saturated air rise and expand?