Search found 2 matches

by james_newlands
Mon Aug 30, 2021 3:03 am America/New_York
Forum: Questions/Comments
Question: All-sky DNI exceeds clear-sky DNI in polar winter
Replies: 4

Re: All-sky DNI exceeds clear-sky DNI in polar winter

Hi Paul, Thank you for your response. Unfortunately I haven't had much luck finding Antarctic irradiance data (e.g. pyranometer measured GHI) to validate the CERES SYN1Deg product. I'm mostly interested in worst case irradiances to size the battery bank for over winter operation, so I should be able...
by james_newlands
Wed Aug 25, 2021 1:17 am America/New_York
Forum: Questions/Comments
Question: All-sky DNI exceeds clear-sky DNI in polar winter
Replies: 4

All-sky DNI exceeds clear-sky DNI in polar winter

Hello all, I'm using the POWER project data to estimate solar power budgets for glaciological instruments deployed in east Antarctica. Looking at the hourly clear-sky and all-sky DNI data (CLRSKY_SFC_SW_DNI and ALLSKY_SFC_SW_DNI) I noticed that the all-sky value significantly exceeds the clear-sky v...