Lernkarten

Christian Voegeli
Karten 96 Karten
Lernende 2 Lernende
Sprache English
Stufe Grundschule
Erstellt / Aktualisiert 29.12.2013 / 16.01.2017
Lizenzierung Kein Urheberrechtsschutz (CC0)
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0 Exakte Antworten 96 Text Antworten 0 Multiple Choice Antworten
Fenster schliessen

what is evaporation influenced by?

topography, land use, meteorology, water availability..

Fenster schliessen

what is the most important component of the water balance?

evapotranspiration

Fenster schliessen

evaporation impacts..

water availability, hydrograph shape and peaks

Fenster schliessen

solar constant

solar declination

I0=1366 W/m2

delta= 23.45°

Fenster schliessen

equation of radiation

Ri = Rr + Ra + Rt

incoming = reflection + absorbtion + transmission

Fenster schliessen

what causes diffuse radiation?

scattering of incoming radiation

Rsw = Rdir + Rdif

Fenster schliessen

Radiation at the top of the atmosphere?

and on the surface?

Rsw = I0/4 = 342 W/m2 (due to shape and night)

surface = 188 W/m2

Fenster schliessen

kirchhoffs law

R1/a1=R2/a2 or R1/e1=R2/e2

a: absorptivity, e: emissivity

"a good reflector is a bad emitter"

a=1 -> black body