IG13/21, flight day 223/2013, Helheim

[knpa]

Data location: /users/rsg/arsf/arsf_data/2013/flight_data/greenland_iceland/IG13_21-2013_223_Helheim

Data arrived from ARSF via network transfer on 23/08/2013

IG13/21 Scientific objective: Testing a theory of glacial calving.

IG13/21 Priority: 9

PI: Tavi Murray

Sensors:

Camera (Requested)
Eagle (Requested)
Hawk (Not requested by PI)
LiDAR (Requested)

[stgo]

Beginning nav processing.

[stgo]

PPP Result:

Lat	65 34 27.54619
Long	-37 07 58.16001
Elevation	83.444

[stgo]

There is a large data gap at the beginning of the nav file, processing from gps second 47150 gives a good result. This is way before the flightlines.

[stgo]

Beginning hyperspectral and lidar processing.

[stgo]

Lidar horizontal overlaps look good. Reprocessing hawk with bands 35 70 90 to get better SCT estimations.

[stgo]

Lidar lines with reduced returns:

File name	Line	Return (%)
132112	002	52.8
132529	003	64.5
132955	004	79.6
133901	006	61.6
144257	UL002	69.9

[stgo]

SCTs:

Flightline	Eagle SCT	Hawk SCT
1	0.05	-0.08
2	-0.15	-0.15
3	1.00	1.00
4	0.00	-0.15
5	0.00	0.00
6	0.00	-0.02
7	0.00	0.00
8	0.00	0.00
9	0.00	0.00
10	0.00	-0.07
11	-0.01	0.00
12	0.03	-0.04
13	0.01	-0.02
14	-0.05	-0.15
15	0.05	0.00
16	0.00	0.00
17	0.00	0.00
18	0.05	-0.15
19	3.00	-0.05
20	0.00	0.00

[stgo]

Beginning rcd processing. Hyperspectral is delayed by line 6 until processing issue is resolved.

[stgo]

There are large number of photos that have been placed in the nogps folder, these will be mentioned in the readme.

[stgo]

Waiting on basestation data before proceeding.

[stgo]

Reprocessing nav with new basestation. PPP result is good:

Lat	66 24 02.38088
Long	-38 12 50.55401
Height	421.261

[knpa]

Started RCD delivery check, however there are only 38 photos in the readme, and over 600 in the photographs dir, most of them incorrectly named so looks like something is wrong. stgo to go back and look at it.

[stgo]

updated hyperspectral scts after new nav:

Flightline	Eagle SCT	Hawk SCT
1	0.05	-0.08
2	-0.15	-0.15
3	1.00	1.00
4	0.15	-0.10
5	0.00	0.00
6	0.00	-0.02
7	0.00	0.00
8	0.00	0.00
9	0.00	0.00
10	0.00	-0.07
11	-0.01	0.00
12	0.03	-0.04
13	0.01	-0.02
14	-0.05	-0.15
15	0.05	0.00
16	0.00	0.00
17	0.00	0.00
18	0.05	-0.15
19	3.00	-0.05
20	0.00	0.00

[stgo]

Recreated RCD delivery, this time files are named correctly, readme looks better as well.

[tipo]

Pitch error visible on lines 11 onwards.

[tipo]

Hyperspectral delivery checked, no problems found.

[knpa]

Beginning RCD delivery check.

[stgo]

Fixed pitch error with value -0.003041469. Will recreate lidar with new files.

[knpa]

Completed RCD check - still some problems:

• I would change the NOT gps tagged files to be "all files failed to be gps tagged except:" as this will be a much shorter list by the looks of it. Also explain that these are the only ones that will appear in the flightline photos below
• should also say why not gps tagged i.e. there was log information missing (I'm assuming they were missing from the eventfile)
• not GPS tagged list goes up to 337 but there are only 336 images
• The exiftool dump example in the ReadMe should be for one the images that has been fully tagged
• The first photograph is messed up - don't deliver

[tipo]

LiDAR line 10 has everything at the top of a cliff classified as noise.

[stgo]

Recreated camera delivery with corrections, the images did not have GPS data available in the event log. I've also fixed the KML file, which still had images added with lat/long 0,0.

[tipo]

Checked LiDAR delivery, no problems found.

[stgo]

Corrected RCD, starting dispatch.

[stgo]

All data dispatched 23/10/2013.

[tec]

Archival
Started

[dac]

Archiving

Data now available from NEODC.