MERSI Time Series

Satellite band averaged data: water-leaving radiance, surface irradiance and solar normalized water-leaving radiance. These values are given as the mean flux (not the total flux) for each band. The total and in-band averages are calculated for each satellite. The in-band is calculated by limiting the relative spectral response to within 1% of the maximum value. A separate data listing (denoted by it's hour) is presented when MOBY collects more than one file per day. Six water-leaving radiances can be calculated from different combinations of MOBY four radiance collectors. The best water-leaving radiance is Lw1, determined from the upper two arms. Lw7 is also included and is calculated from the middle and bottom arms.

As we have been analyzing the MOBY data from the current deployment we have discovered a problem with a non-linearity in the signal at higher raw data counts. This effects data taken at the 22 and 23 hour data files, but none of the data in the 00 hour data (most relevant to VIIRS) is affected. This error can cause up to a 4% depression in the value of Lw, particularly in the region around 500nm. Since we dont currently have a way to mark some of the data in a file as bad, but we have questions on this data, we are going to mark the whole data file as "bad" in the cases where we are suspicious of the data product. We are going to be conservative with this now, but after further review, if we can retrieve some of these files we will repost them as good. This will require us to remove 12 files, all 22 and 23 hr files, that were previously marked as good.

We have fixed parameters in the buoy, so going forward from September 12, 2013 this will not be a problem.


October 2016 Reprocessing Information

In Oct 2016, a reprocessing of the MOBY data began. Three problems are being addressed: 1) the method to extrapolate Kl to the surface has been improved to include Raman scattering and chlorophyll fluorescence; 2) the arm depths used in retrievals was increased by 0.234 m; and 3) a single pixel shift in the data for the RSG collected at a bin factor of 384 for deployments MOBY203 to MOBY253. Initially only MOBY254 to current deployments were reprocessed. These deployments did not have the RSG single pixel shift problem. So for MOBY254 to current deployments only correction 1 and 2 are applied. As the older deployments are processed the data will be added to this directory. MOBY203 to MOBY253 will have had all three corrections applied.



● Lw1 is the Water-Leaving Radiance calculated from LuTop and Kl1(LuTop-LuMid)
● Lw2 is the Water-Leaving Radiance calculated from LuTop and Kl2(LuTop-LuBot)
● Lw7 is the Water-Leaving Radiance calculated from LuMid and Kl3(LuMid-LuBot)

● Lw21 is the Water-Leaving Radiance calculated from LuTop and a modeled Kl
● Lw22 is the Water-Leaving Radiance calculated from LuTop and a modeled Kl
● Lw27 is the Water-Leaving Radiance calculated from LuMid and a modeled Kl

MERSI bands plotted with Lw and Es
Satellite BandHourLw&EsLwn2
MERSI Total-Band 00 1 1
22 1 1
23 1 1
MERSI Total-Band 00 7 7
22 7 7
23 7 7
MERSI Total-Band 00 2 2
22 2 2
23 2 2
MERSI In-Band 00 1 1
22 1 1
23 1 1
MERSI In-Band 00 7 7
22 7 7
23 7 7
MERSI In-Band 00 2 2
22 2 2
23 2 2
MERSI Total-Band modeled Kl 00 21 -
22 21 -
23 21 -
MERSI Total-Band modeled Kl 00 27 -
22 27 -
23 27 -
MERSI Total-Band modeled Kl 00 22 -
22 22 -
23 22 -
MERSI In-Band modeled Kl 00 21 -
22 21 -
23 21 -
MERSI In-Band modeled Kl 00 27 -
22 27 -
23 27 -
MERSI In-Band modeled Kl 00 22 -
22 22 -
23 22 -

MOBY Auxilliary Data
MOBY HourLwAux Data
00 1 Listing
00 2 Listing
00 7 Listing
22 1 Listing
22 2 Listing
22 7 Listing
23 1 Listing
23 2 Listing
23 7 Listing

nd_mersi_total_0_1_es.png
nd_mersi_total_0_1_lw.png
nd_mersi_total_0_2_es.png
nd_mersi_total_0_2_lw.png
nd_mersi_total_0_7_es.png
nd_mersi_total_0_7_lw.png
nd_mersi_total_22_1_es.png
nd_mersi_total_22_1_lw.png
nd_mersi_total_22_2_es.png
nd_mersi_total_22_2_lw.png
nd_mersi_total_22_7_es.png
nd_mersi_total_22_7_lw.png
nd_mersi_total_23_1_es.png
nd_mersi_total_23_1_lw.png
nd_mersi_total_23_2_es.png
nd_mersi_total_23_2_lw.png
nd_mersi_total_23_7_es.png
nd_mersi_total_23_7_lw.png

Lwn2 Time Series

nlwn2_mersi_total_0_1_lwn2.png
nlwn2_mersi_total_0_2_lwn2.png
nlwn2_mersi_total_0_7_lwn2.png
nlwn2_mersi_total_22_1_lwn2.png
nlwn2_mersi_total_22_2_lwn2.png
nlwn2_mersi_total_22_7_lwn2.png
nlwn2_mersi_total_23_1_lwn2.png
nlwn2_mersi_total_23_2_lwn2.png
nlwn2_mersi_total_23_7_lwn2.png

Stephanie Flora - Moss Landing Marine Laboratories