MERIS 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.

During this deployment the LuTop and LuBot arms had major problems which resulted the loss of Lws calculated using these arms. The LuTop data started drifting downwards in Feb until on 19 Feb the LuTop and LuMid data were so close the Kls produced were below clear water. Therefore there are no Lw1 data after 18 Feb. This problem was discovered by Mike Feinholz during the post deployment calibrationss where he found that the LuTop response had dropped by 40%. On 15 Jan the LuBot data started to drift downward. However Mike did not see any change in the LuBot calibrations from pre to post deployment. It is not know what caused this problem but after Jan 15 there are no Lw7 data products.

To provide Lw for the calibration process we use the 9-year monthly mean Kl to propagate the middle arm Lu data to the surface. This Lw is called Lw11. The 9-year monthly mean Kl3 was calculated for each MOBY hour (20, 22 and 23).


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.

November 2017 Reprocessing Information

In Nov 2017 a reprocessing of the MOBY data from M203-M248 was done. This was done to 1) provide a uniform stray light correction (SLC) to the entire data set. M249 onward already was processed with this SLC, so was not changed; 2) Deployments M206, M208 and M210 had spectral data for wavelengths less than 380 nm removed because these deployments used a different type of fiber which caused problems for the SLC at wavelengths below 380 nm.



● 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)
Lw11 is the Water-Leaving Radiance calculated from LuMid and Kl3 (5-year monthly mean)

● 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

MERIS bands plotted with Lw and Es
Satellite BandHourLw&EsLwn2
MERIS Total-Band 20 1 1
22 1 1
23 1 1
MERIS Total-Band 20 2 2
22 2 2
23 2 2
MERIS Total-Band 20 7 7
22 7 7
23 7 7
MERIS Total-Band 20 11 -
22 11 -
23 11 -
MERIS Total-Band modeled Kl 20 21 -
22 21 -
23 21 -
MERIS Total-Band modeled Kl 20 22 -
22 22 -
23 22 -
MERIS Total-Band modeled Kl 20 27 -
22 27 -
23 27 -
MERIS Total-Band modeled Kl 20 211 -
22 211 -
23 211 -

MOBY Auxilliary Data
MOBY HourLwAux Data
20 11 Listing
20 1 Listing
20 2 Listing
20 7 Listing
22 11 Listing
22 1 Listing
22 2 Listing
22 7 Listing
23 11 Listing
23 1 Listing
23 2 Listing
23 7 Listing

nd_meris_total_20_1_es.png
nd_meris_total_20_1_lw.png
nd_meris_total_20_2_es.png
nd_meris_total_20_2_lw.png
nd_meris_total_20_7_es.png
nd_meris_total_20_7_lw.png
nd_meris_total_22_1_es.png
nd_meris_total_22_1_lw.png
nd_meris_total_22_2_es.png
nd_meris_total_22_2_lw.png
nd_meris_total_22_7_es.png
nd_meris_total_22_7_lw.png
nd_meris_total_23_1_es.png
nd_meris_total_23_1_lw.png
nd_meris_total_23_2_es.png
nd_meris_total_23_2_lw.png
nd_meris_total_23_7_es.png
nd_meris_total_23_7_lw.png
nmkl2_meris_total_20_11_es.png
nmkl2_meris_total_20_11_lw.png
nmkl2_meris_total_22_11_es.png
nmkl2_meris_total_22_11_lw.png
nmkl2_meris_total_23_11_es.png
nmkl2_meris_total_23_11_lw.png

Lwn2 Time Series

nlwn2_meris_total_20_1_lwn2.png
nlwn2_meris_total_20_2_lwn2.png
nlwn2_meris_total_20_7_lwn2.png
nlwn2_meris_total_22_1_lwn2.png
nlwn2_meris_total_22_2_lwn2.png
nlwn2_meris_total_22_7_lwn2.png
nlwn2_meris_total_23_1_lwn2.png
nlwn2_meris_total_23_2_lwn2.png
nlwn2_meris_total_23_7_lwn2.png

Stephanie Flora - Moss Landing Marine Laboratories