Normalized Flourescence Line Height (nFLH)

Table of Contents

1. Product Summary
2. Algorithm Description
3. Implementation
4. Assessment
5. References
6. Data Access

1 - Product Summary

This algorithm returns normalized fluorescence line height (nflh) in mW cm^-2 µm^-1 sr^-1, calculated as the difference between the observed nLw(678) and a linearly interpolated nLw(678) from two surrounding bands. 

MODIS only.

Algorithm Point of Contact: Toby Westberry, Oregon State University

2 - Algorithm Description

Inputs:

• nLw(667)
• nLw(678)
• nLw(748)

Output:

• nflh,  normalized fluorescence line height in mW cm^-2 µm^-1 sr^-1

Generic Algorithm:

$ nflh = nLw(678) - \left(\frac{70}{81}\right)\times nLw(667) - \left(\frac{11}{81}\right)\times nLw(748) $

3 - Implementation

Click fluorescence.c to view source code.

Calling in L2GEN:

4 - Assessment

 Satellite-to-in-situ validation results are available from the SeaWiFS Bio-Optical Archive and Storage System (SeaBASS).  Results are currently not available for nflh.

5 - References

Behrenfeld, M. J., Westberry, T. K., Boss, E. S., et al. (2009). Satellite-detected fluorescence reveals global physiology of ocean phytoplankton. Biogeosciences 6, 779-795.http://dx.doi.org/10.5194/bgd-5-4235-2008

6 - Data Access

• Browse/Obtain Level-2 data - order
• Browse/Obtain Level-3 data - order or download
• Download data directly - any data level via https links
• Search data archive - filename, pattern, or date search
• Manage existing orders - confirm, cancel, monitor
• Manage/Create a data subscription - confirm, cancel, monitor, or create new data delivery requests and regions