mistagged contours
matt.wilkie@gov.yk.ca
30-Oct-2k
01-Nov-2k
whole sheet was 10m intervals instead of 20m
lake has wrong elevation
06-Dec-2001
Long Lake, not fixed, just set lake elevation to NODATA
105D/11
totally hooped watercourse
looks like a good place to research anti-gravity
116G/01
watercourse crosses mountain range
31-Oct-2k
broke vector at ridge line
116F/16
anomoly
18-Nov-2k
consistatn with data, bench, looks weird but appears to be explained by the data
116K/15
two 5,000'  peaks incorrectly marked as 6,200'
116B/09
edge effect
15-Nov-2k
need to double check  Alaskan source data
115F/16
20-Nov-2k
descending 6,600' - 5,600' incorrectly marked ascending 6,800' - 7,800'
looks too steep
supported by data
4,400' contour incorrectly tagged as 5,400'
disconnected streams
probably need to exlude all watercourses in the valley bottom
descending 530m - 520m incorrectly marked ascending 540m - 570m
anomaly
116I/10
116I/09
braided stream artifact
need to exclude from dem calc process
looks weird but appears to be explained by the data
116G/07
missing stream
looks as if stream should be present
106F/05
antigravity watercourse
deleted antigrav segment, heads-up digitizied watercourse to follow contour depressions
105N/16
broke vector at ridge line, contours suggest stream should not exist
106B/04
106D/02
4,700'  mount incorrectly marked as 5,200'
5,400'  contour incorrectly marked as 4,900', 5,500' as 5.000'
5,900' to top all 500' too low.  Somebody was having a bad day on this sheet
5,300'  contour incorrectly marked as 4,800'
21-Nov-2k
watercourse shows no relationship to contour data
116O/07
116p12:  2,000' to 2,150' incorrectly  tagged at 100' intervals; 116p11: ascending 2,000' to 2,100' tagged as descending 1,950' to 1,850'
mismatched source data, each tile is internally consistant
stream flip
todo
116J/13
116o02: descending 780m - 680m incorrectly tagged ascending 800m - 900m
23-Nov-2k
perfectly matched treeline, deleted the "watercourse"
105O/11
2060m & 2080m contours incorrectly tagged 3000m & 3020m
105O/12
mistagged contour
105n16: 3,400' tagged as 2,400'
broke vector at ridge line, deleted small joining segment
115P/08
105k07
105K/07
105H/16
22-Nov-2k
105H/03
105f04: ascending 2,000m - 2,020m incorrectly tagged ascending 1200m - 1220m
920m tagged 1220m
5,500' contour incorrectly tagged as 6,500'
115H/05
114P/15
08-Jan-2001
27-Feb-2001
Graham
Crack
consistant with source data
95C/08
Crater
95C/10
Higher resolution than neighbours
dem has 10m instead of 30m cells
Hole or misplaced contour
consistant with data
105A/09
105A/15
Unexplained contour (North-Easr)
105B/02
Unexplained contour (middle)
canyon
todo, incorrectly flipped stream
Crater - possibel edge effect
Crack (NW)
105C/08
Too dark
105D/13
105D/15
incorrectly flipped stream
115A/03
Very dark
consistant with data, steep slope and dense contours
115B/10
115B/11
contours are perfectly edge matched, need to recacalc these dems
Shading problem or altitude thing?
115B/16
missing
we have no NTDB data for 115c08
115C/08
Dark spot
115F/07
Edge effect
todo,need to check Alaskan data
todo,need to recalc these dems
need to recalc this dem
source data shows contour crossing a stream
115G/16
115H/03
Unusual stream
115H/01
115H/06
105E/01
105E/02
105E/10
Dark creek
105E/13
105F/03
Dark line near edge
todo, 10m cells
105F/11
105F/16
Border issue
recalc  these dems
bad lake elev
todo, lake elevation higher than surrounding terrain
105G/06
watercourse bears little resemblance to topography, probably wrong feature code
105G/16
105H/01
105H/07
todo, wrong elevation values
105H/13
Strange contour
todo, center tile fixed, need to recalc neighbours
Matt
watercourse runs nowhere
turns to underground stream? ntdb error?
Dam-like Structure
02-Mar-2001
95C/05
Crater on border
todo,consistant with data, though right tile (115h08) appears to have more artifacting, should be recalced
95E/04
95E/06
95E/13
hooped watercourse
not a creek, should be treeline(?)
Hole
105I/04
105J/09
105J/13
Four space snakes landed on the ridge?
consistant with data, though it does look strange
Resolution higher than neighbours
todo, 10m pixels instead of 30m
105J/14
todo, mistagged contours
todo (x2)
105K/10
Stream crosses mountain
todo, break or delete?
115I/03
115I/14
115J/02
Border inconsistency
consistant with data, possible edge effect from photo interp.
Unusual contour
115J/07
115J/15
115N/15
Dark spot (Border)
edge effect, doublecheck Alaska data
115O/10
115O/09
Dot?
115O/08
115O/07
canyon (border)
Strange lines
consistant with data, looks like intermittant stream should be here?
115P/15
single watercourse drains into two watersheds
115P/16
105M/04
Strange contours?
Unusual knob
105M/16
dem has10m instead of 30m cells
105N/14
dem has 10m cells instead of 30m cells
105N/10
105N/06
consistant with data, steep vertical slope with contour overlap
105O/01
105O/02
todo, probably is supposed to be a treeline vector
105O/04
105O/07
anomoly unverified, I don't see anything strange
Higher resolution than neighbour
Strange dot/contour
105O/13
Contour error
105O/14
Dark creek in printout
it was a bad stream flip
105P/12
105P/04
pimple, mistagged contours?
consistant with data, though it does look strange in relief
Creek error
Anomoly
106B/05
Contur issue
106B/12
106C/03
Too dark (Border)
consistant with data, very steep slope
106C/04
Too dark on printout
consitant with data, very steep slope
106C/06
106C/11
106D/03
todo, anomoly is -not- consistant with base data, recalc this dem
106D/09
116A/02
watercourse error
116A/04
Unknown
116A/05
Crack - contour
03-Mar-2001
116A/09
116B/12
116B/15
Possible hole
todo, mistagged contour
116B/16
todo,mistagged contours, plus mismatched contours across tile boundaries
Dot
116C/15
todo,check Alaskan data
stream flip error
116C/10
bad watercourse
vector looks like it is in the wrong cover, should probably be treeline(?)
116F/01
stream crosses mountain
116F/02
116F/09
consitant with data
116G/13
116G/11
todo, stream flip
116G/04
Strange creek
todo, should not be watercourse, treeline?
116H/16
anti-gravity watercourse
I have no idea what went wrong here but it is definately wrong
116H/12
116H/06
106E/09
Maybe missing data
todo, recalc this dem, the contours appear to have the correct values
106E/10
misteagged contours
106F/13
106F/15
106F/16
Maybe edge effect
todo, recalc this dem, looks like a bad stream flip but the stream is okay
edge effect, tiles are internally consistant
Grahanm
anomoloy
consistant with data, but possibly exagerrated
106F/03
106L/01
Border problem
anti-gravity stream
todo, vector is not a watercourse - treeline?
106L/08
106L/04
106L/12
106L/11
Dark creek in  printout
106L/10
todo, stream drains into two watersheds
116I/02
116I/08
Hole - border
todo, reclalc dem, looks like bad stream flip but stream runs in right direction
Possible crack
116J/03
116J/11
116K/07
Hole/crack
116K/08
Strange wavelike lines throughour
todo, anudem artifacting? recalc these dems
116O/02
116P/05
Stream may cross mtn
116P/12
Crack type thing
Gaham
116P/10
116P/09
116P/16
116P/15
consistant with data, G. misread ridge line for stream valley
Dark contour
117A/07
Creek problem
117A/12
117C/08
Odd creek
26-Mar-2001
single streams drains into two watersheds
matt
105O/03
02-Apr-2001
gross data blunder
03-Aug-2001
todo, contour incorrectly coded as stream (also in 250k)