SeaBASS Submission Checklist: In-water Radiometry 

Submissions require reporting methods of the acquisition process and data processing. Every processing step should be detailed with methods and equations.

Instructions: Please fill in section I. and the applicable bulleted points in section II. to the extent possible. Rename this file to be specific to your data, for example by adding the cruise and investigator name, and include it among your submission’s documents.

I. Submission Info
Experiment name:
PACE_PVST______________________________________________
Cruise name:
Perseverance_2026________________________________________________
Instrument model & manufacturer:
HyperPro - Seabird scientific.
Data type: e.g., profiles (single cast or multi cast), buoy mode
Buoy mode. Reference radiometer on buoy.

II. Radiometry Documentation Requirements
	1.	 1)	Describe instrument manufacturer characteristics, including spatial, spectral, electrical and physical characteristics. Describe instrument ballasting used to achieve targeted descent rates: 
	2.	 2)	Report instrument characterization results including
	a.	 a)	Spectral range: 350-800nm
	b.	 b)	Spectral resolution: 3nm.
	c.	 c)	Spectral accuracy:  +/-1nm
	d.	 d)	Field of view:  7degrees
	e.	 e)	Cosine response: 
	f.	 f)	If a full characterization has been performed, please report any additional parameters: 
	3.	 3)	Calibration application. If available, report absolute radiometric calibration equation, for radiance and irradiance sensors:
	4.	 4)	Sampling procedure (e.g., instrument deployment details, position on ship, location of sensors and deployment with respect to the ship heading, when and where pressure tare and dark readings were collected, etc.):
	5.	 5)	Sampling rate and integration time: Automatically assigned by instrument.
	6.	 6)	Data processing
	a.	 a)	if data were processed through a commercial radiometric software package (e.g., Prosoft, uProfile) please specify: Prosoft to get Ed and Lu applying calibration parameters and immersion coefficient for  Lu.
	1.	 1.	Software and version:
	2.	 2.	Processing level output: L2
	3.	 3.	Parameters selected and processing settings: Lu, Ed.
	b.	 b)	Alternately, if data were processed with in-house software, please describe all of the following that applied: In PVST_SOPACE-ModX-HyperPro_Documentation.pdf file I provide the processing steps to compute Rrs and Lw.
	1.	 1.	Conversion data counts to engineering units. i.e., describe conversions from raw binary optical data into counts (calibration equation): Using Haentjens code.
	2.	 2.	Deglitch shutter data. If applicable, describe deglitching method: N/A
	3.	 3.	Smooth shutter darks. If applicable, describe data smoothing method: Interpolate darks to light data.
	4.	 4.	Describe how shutter darks were interpolated as a function of measurement time to match the number of dark and light data measurements: interpolated linearly.
	5.	 5.	Dark correction. Describe how light values were corrected for dark values: Removed interpolated dark data to time of light data.
	6.	 6.	Temperature correction of light data. Report temperature correction equation:  N/A Sensor collect dark values.
	7.	 7.	Time interpolation, if any (non-interpolated data preferred). Describe interpolation method applied: Interpolate all sensors to Lu

III. SeaBASS Data File Information
This section does not need to be filled out. However, please note that the following information should be included within each SeaBASS data file.

Optional but recommended metadata headers:
	•	•	Wind speed (/wind_speed=) - provided
	•	•	Cloud cover (/cloud_percent=) -provided
	•	•	Wave height (/wave_height=)  - provided
	•	•	Ship heading (/heading=) -NA

Data fields should include the following (see also https://seabass.gsfc.nasa.gov/wiki/stdfields for additional field names and info)
	•	•	Tilt, Roll, and/or Pitch - used only data when both pitch and roll are less than 5 degrees.
	•	•	Time - provided
	•	•	Depth -NA

Optional but recommended data fields: 
	•	•	Conductivity (cond) -salinity provided
	•	•	Water temperature (wt) -provided