Rrs vs rrs remote sensing reflectance

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naveedbuttar
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Rrs vs rrs remote sensing reflectance

by naveedbuttar » Sat Oct 10, 2020 5:15 am America/New_York

Hello,
I want to simulate it in the QAA algorithm to retrieve the aw and bbp from HICO L2 data along with in situ data, but I wonder that available in-situ data isn't different because this is rrs below surface remote sensing reflectance, but retrieval from this HICO L2 image that is above surface Rrs.
Can you confirm is it below surface remote sensing reflectance rrs? I want to compare Rrs retrieval from the HICO-L2 image in the below link,  can I make a comparison between Rrs vs rrs? or should I inverted Rrs into rrs then get my comparison?
https://oceancolor.gsfc.nasa.gov/cgi/browse.pl?sub=level1or2&per=CU&day=18545&prm=CHL&set=10&mon=18506&sen=hico&rad=0&frc=0&rgn=HawaiiMain8&id=1602319665.30703&cn=23.40&cs=18.54&cw=-161.15&ce=-154.02&dnm=D&is=yes&file=H2013292233238.L2_ISS_OC.nc_CHLOR_A_BRS_BRS&ndx=5&wid=500&hgt=1991

Thank you in advance for your support.

Regards

Naveed

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OB.DAAC - SeanBailey
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Rrs vs rrs remote sensing reflectance

by OB.DAAC - SeanBailey » Sat Oct 10, 2020 5:51 pm America/New_York

Remote sensing reflectance (Rrs) is an above water quantity derived from water leaving radiance (Lw, at just above the surface) divided by the surface irradiance (Es, alternatively called Ed0+).
All Rrs products we distribute, both satellite and in situ are this quantity.  If you have in situ data of another flavor, I would think you'd need to convert one of them to the same quantity as the other for comparisons to be made.

Sean

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