GB13/08, flight day 217/2014, Montrose Bay

[knpa]

Data location: /users/rsg/arsf/arsf_data/2014/flight_data/uk/GB13_08-2014_217_Montrose_Bay

Data arrived from ARSF via network transfer on 06/08/2014

GB13/08 Scientific objective: Monitoring changes in coastal geomorphology after storm events with LiDAR.

GB13/08 Priority: 8

PI: Mark Cutler

Notes: FW is present. VNIR is x4 spectrally binned.

Sensors:

Camera (18/11/2014)
Fenix (18/11/2014)
LiDAR (18/11/2014)
FW LiDAR (18/11/2014)
OWL (Not requested)

[tec]

Started Nav Processing

[tec]

DUDE Basestation Data
Latitude	56 27 50.14821
Longitude	-2 52 38.33745
El Height	57.480m

[tec]

Processing the nav, starting at GPS time 208333. Waiting until tomorrow, for new lever arm values.

[tec]

Started RCD Processing, converted the Raw files to tifs.

[tec]

Removed image 05085817100001G4 due to overexposure.

[tec]

Processing Nav:

Need to get new basestation when smartnet decides to start working again.

[tec]

NAV
Using new basestation to try and get a better ambiguity fix

KINT Basestation Data
Latitude	57 14 43.34057
Longitude	-2 19 43.23940
El Height	141.242m

[tec]

Nav
Used the old base station in the end. Cut the time to 21160 till 215228. The nav is not perfect over the cross line, it has an quality of 1 for most of the line but there is a bit near the end which is of quality 2.
Nav finishing

[tec]

RCD
Delivery created, awaiting DC

[dap]

Beginning RCD delivery check.

[dap]

RCD Delivery Check

Complete. The following issues need to be addressed before delivery:

• The following images have a red tint, which should be commented on in the read me:
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 102
  • 103
  • 117
  • 118
  • 119
  • 133
  • 136
  • 139
  • 140
  • 141

[lah]

Started Lidar Processing

[lah]

Lidar
Processed with variable roll and pitch offsets. Moving onto classification.

	Roll	Pitch
1	-0.006625	0.000463
2	-0.006625	0.000513
3	-0.006625	0.000513
4	-0.006475	0.000263
5	-0.006475	0.000513
6	-0.006525	0.000513

[lah]

Lidar
Lidar ready for delivery check. Line 1 FW data was not processed correctly (tried repeating 4 times), so could not be classified correctly. The new script did classify without an error, but the output file could not be read by lasinfo, so the issue seems to be with the header. Reprocessed fine with the windows version of alspp, but there appears to be a slight (0.1m) offset between the 2 las1.2 files using identical settings.

[tec]

RCD Processing
Ready for delivery.

[dac]

LiDAR Delivery Check
Starting lidar delivery check.

[tec]

Hyperspectral Processing
Started processing fenix data.

[dac]

LiDAR Delivery Check

Delivery check complete. Some minor issues (see below).
Ready to deliver once elevation offsets have been updated in readme.

• Overlap between 4 -- 6 and 5 --6 is just water, don't think reporting elevation difference makes much sense, would just add note. For 3 -- 6, the difference looks less than 25 cm when only non-water areas are considered.
• Used full size screenshots in readme (should have used versions created by script with convert -thumbnail 1024) - have corrected.
• Suggest changing note about data quality to "A large proportion of the flightlines cover water, over which there is a low density of returns. Areas of water have not been classified, although some isolated points have been flagged as class 7 as part of the noise detection algorithm applied." - have done this in readme.

[tec]

Hyperspectral Processing
APL was moaning about the nav, so renamed the 2014217_ipaspro* files to 2014217_080000*, moved the old files with those names to a different directory. Seems happy now.

[tec]

Hyperspectral Processing
SCTs

Flightline	FENIX
1	0.98
2	0.96
3	0.95
4	-0.05
5	0.92
6	0.90

[tec]

Hyperspectral Processing
Finished, ready for delivery check.

[lah]

'Lidar
Have re-measured overlap between 3 & 6 as 8cm and updated readme, but suggested screenshots don't exist. Not sure what's wrong with script.

[lah]

Lidar Complete
Recreated readme with thumbnails.

[dap]

Beginning Hyperspectral Delivery Check

[dap]

Hyperspectral Delivery Check

Delivery all looks good, just some corrections need to be made in the read me data quality remarks. I've made some corrections to the source tex file but did not run pdflatex on it as there are still some corrections to be made:

• I changed "final flightline" to "crossline".
• I changed "is poor" to "are poor".
• I changed "a high number on" to "high number of"
• I changed file name of the dem in the example commands section of the read me as check_apl_cmd returned some errors stating that the dem file didn't exist (it was expecting a dem with a different name). I've also changed the command in the read me config file.

I didn't make corrections to remarks on the underflows as I wasn't sure whether these needed to be corrected. Upon inspection of the level1b bil files, I found the following noisy bands:

Flightline	Noisy bands
01	242-256
	320-371
	390-415
	420-440
02	242-256
	320-359
	390-415
	420-447
03	321-370
	420-447
04	320-362
	420-447
05	320-350
	416-447
06	245-265
	315-447

[tec]

Hyperspectral Processing
Implemented changes, slightly generalised bands so that I could group lines 1,2 and 3,4,5

Ready to be checked again.

[dap]

Hyperspectral Delivery Check

Checked corrections to read me document, hyperspectral data ready for delivery.

[dap]

PI has been sent pre vector delivery email, awaiting his reply before delivering the data.

[dap]

Zipping mapped files for copying delivery to hard drive.

[dap]

Renamed DEM and hdr so that file names comply with naming convention.

LiDAR, Hyperspectral and Camera data delivered to Mark Cutler at the University of Dundee, 18/11/2014