SPLICE, flight day 200/2023, Alice Holts

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Data location: /users/rsg/arsf/arsf_data/2023/flight_data/uk/SPLICE-2023_200_Alice_Holts

Data arrived from NERC-ARF via hard driver on 19/07/2023
Evaluate the impact of 3D structure on calculations of photosynthesis

PI: Tristan Quaife

Sensors:
Fenix1k (requested, flown)
IBIS ( main requested, flown)
Camera ( requested, flown)
LiDAR ( requested, flown)

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Data unpacked
There are 16 IBIS lines.
Fenix1k crashed collecting 1 line and did not collected the following one resulting on 14 usable lines. Moved 1 line to a "crashed dir".
Basestation collected by NERC-FSF has been also download and added to the project.
Ibis and Fenix1k files have been renamed. Project is ready for processing.

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PI notified of data arrival on 4th August 2023

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Navigation Processing

Processing navigation data.

FSF provided their basestation data. I also downloaded the following stations from OS:

• AMER
• ARDL
• CHIO
• HARD
• HART
• NEWR
• PRIS
• SANO
• SHOE
• SNEO
• SOTN
• STEE
• STRA
• TEDD
• WEIW

These basestations should cover a conclusive area between Duxford and Alice Holts.

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Navigation Processing

Completed processing in POSPac using the SmartBase (multi basestation) method.

Basestations used:

• AMER
• CHIO
• HARD
• NEWR
• PRIS
• SANO
• SNEO
• SOTN
• STEE
• STRA
• TEDD

ARDL, SHOE and WEIW were not needed due to distance, HART had incomplete temporal coverage.

Lever arms were estimated as: 0.427 -0.497 -1.48

Have exported with angular offset of Z: 180 (IMU is backwards relative to Ibis and Fenix1k for this flight).

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Hyperspectral & Ibis Processing

Processed Fenix1k data with three bands using boresight values from flight 2023 198 (ticket #704). Geoaccuracy looks good.

Need to calculate Ibis boresight. There is no data from flight 2023 190 (Alconbury) so will have to use 2023 143 (Siena).

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Fenix1k Processing

Mapping all bands

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Ibis Processing

Still doing boresight.

SCT errors on lines 11 & 14 (possible due to frames being dropped).

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Ibis Processing

Calculated boresight from Siena (flight 2023 143, ticket #702) but the values are wrong for this flight. The sensor must have moved sometime between these flights.

Will do my best to estimate boresight from this flight's flightlines.

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Felix Delivery

Ready for checking.

Note, this is just the standard delivery. Level 2 data has been requested but Ibis l1b will be prioritised first.

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Ibis Processing

Have painstakingly found what I think is the best boresight we can do without the proper flightline configuration. Spatial offset is a few pixels (~3m) and does not seem consistant. Unfortunately I think this the best we can do without a proper boresight flight.

Processing all bands.

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Ibis Delivery

Created. Ready for checking.

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Fenix1k delivery check

Undertaken by anla.

• check_apl_cmd didn't run properly
• No project information XML
• Line 11 too large for fastQC

Zipping mapped files.

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Ibis Delivery Check

Started

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Ibis Delivery Check

-Data looks good as far as I can tell. The oxygen absorption at 760 nm is clearly visible through all data.
-There is no underflows or overflows.
-There were two screenshots for each line. Deleted duplicates labelled as UTM.
-Check_apl_cmd needs updating. I will recheck after that.

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Ibis Delivery Check

-Mark updated check_apl_cmd, all running good.
-There is quite a bit of cloud shadows in the data, it might be good to capture that in the data quality section of the readme but it is rather obvious in the data.
-Started zipping files and will mark as delivered once completed and checked as all other checks were done and the delivery passed all.

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Ibis Delivery Check

-Mapped files have been zipped successfully. Marking this project then as ready to go.

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Deliveries Sent

Fenix1K and Ibis deliveries placed on FTP slot 17. PI notified. Deliveries finalised.

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Fenix1k atmospheric correction

Delivery created and ready to be checked.

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Ibis Delivery

Just noting here that IBIS flightline 12 could not be processed and delivered because there were no dark frames collected for this flightline.

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Fenix1k atmospheric correction

This delivery has been checked and it is ready to be delivered.

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LiDAR Processing

Continuing development work on this dataset.

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LiDAR Processing

Note there is no fullwaveform for this flight, there is a Digitizer directory within the raw directory but it is empty.

Note that the presence of this file might obligate the LMS software to "try" and process fullwaveform.

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LiDAR Processing

The LMS standard discrete data processing steps have completed. Exporting to ASCCI and LAS1.2.