PVsyst's forum
https://forum.pvsyst.com/

Significant difference in temperature data between Meteonorm 7.2 & NASA-SSE
https://forum.pvsyst.com/viewtopic.php?f=22&t=4829
Page 1 of 1

Author:  Muthuraj [ Sat Mar 21, 2020 8:29 pm ]
Post subject:  Significant difference in temperature data between Meteonorm 7.2 & NASA-SSE

Hi,
I am currently using PVSyst 6.86 where I tried to compare meteo data from Meteonorm 7.2 and NASA-SSE for a high altitude site.
Although GHI values roughly match, significant difference (13 to 20 deg C) is observed in monthly values of temperature which leads to following questions.
(1) NASA-SSE database contains different temperature values like earth skin temperature, air temperature at 10m (min, max, avg), etc. Which one is used in PVSyst 6.86?
(2) Similarly, Meteonorm also contains different temperature values like surface temperature, air temperature at 2m, etc. Which one is used in PVSyst 6.86?
(3) Although NASA-SSE dataset's spatial resolution is large (1 lat x 1 long), for most of the low altitude sites that I have seen, temperature values match roughly. Is this a problem only in high altitude regions? Any specific reasons.
Thanks.

Page 1 of 1 All times are UTC+02:00
Powered by phpBB® Forum Software © phpBB Limited
https://www.phpbb.com/