Map 6501 Maniitsoq

Airphoto Keymap
Legend
Contents Phys. Env. & Logistics Map Keymap
Area 162
X
S38
Al350
9
Se
4
X
158
Gu349
Area 161
X
ImartuneqX
PXManiitsoq
0
X
X
X
X
Al351
X
X
X
0
X
R
R
Maniitsoq
X
161 N
162 N
Ka
nge
rlu
ars
uk
4
Gu352
O(Sukkertoppen)
N
R
X
97
Se Lu Area 158
155 N
X
X
Imartorngup
Timaa
X
X
X
Ivittusoq
157 N
R
65°20'
7
Lu
S
X
X
Area 157
A
R
8Ca 7
Lu
X
X
X
X
X
Sø
nd
re
Iso
rto
q
0Al353
M
ali
gis
sa
t
65°30'
Gu354
X
X
X
X
X
151
N
R
8 D7
Ca Ar
Lu
4 Gu343
X
Uummannap Timaa
X
Area 151
X
Uummannaq
O
Area 147
X
148 N
X
X
147
R
7
Lu
Area 150
Ca
O
N
Kangarssuk
146
65°10'
Shoreline Sensitivity
Map 6501 Maniitsoq
149 :
Ha
Ar
N
X
R
8
A
8 D 7Ca
X
X
Alanngua
Area 149
R
Area 148
:Ha1318
S49
142 NX
R
Area 142
7Lu
X
X
X
O
X
4 Gu332
Area 141
X
XX
NapsasoqS
141 N
O
65°00'
R
0
2
4
6
8
4
10 km
Gu331
7
Lu
UTM zone 22N, WGS84
53°00'
Environmental Oil Spill Sensitivity Atlas for the West Greenland Coastal Zone
52°45'
52°30'
Topographic base: G/250 Vector, Copyright Kort & Matrikelstyrelsen, 1998
Contents
Shoreline sensitivity
Keymap
Map 6501 - Maniitsoq
Environmental Description
Resource use
R 141
Fishing areas for lumpsucker (some important), wolffish, cod (pound net), redfish and
salmon, probably important hunting area.
R 142
Fishing areas for lumpsucker (some important), wolffish, cod (pound net) and salmon,
important hunting area for a.o. seals.
R 147
Fishing areas along the coast for capelin, Arctic char and lumpsucker, fishing areas for
wolffish, occasional hunting.
R 148
Coastal fishing areas for capelin (small), lumpsucker (important) and Arctic char (small),
fishing area for wolffish, occasional hunting.
R 151
Coastal fishing areas for lumpsucker (important), capelin (important) and Arctic char
(small), fishery for cod, hunting area especially for seals.
R 155
Important coastal fishery for capelin and lumpsucker, fishing area for cod, important
hunting area for a.o. seals.
R 157
Occasional fishing, probably important hunting area for a.o. whales, many vacation huts.
R 158
Important fishing area for lumpsucker, probably important hunting area, many vacation
huts.
R 161
Fishing areas for lumpsucker, important hunting area for a.o. seals.
R 162
Fishing areas for lumpsucker, redfish, salmon, cod (pound net) and halibut, important
hunting area for a.o. seabirds and whales, many vacation huts.
Species occurrence
Ar147
Arctic char fishery in head of Amitsuarsuarralak and along the Alanngua coast.
Ar151
Arctic char fishery along coasts of Saarlup Ilua.
Ca147
Capelin fishery along all coasts.
Ca151, Ca155 Important capelin fishery along Søndre Isortoq coast.
Ha149
Breeding and possible winter site for harbour seal.
Lu141
Lumpsucker fishery several areas, important in northern part.
Lu142
Important lumpsucker fishery several sites at northwestern coast.
Lu147
Important lumpsucker fishery in southern part.
Lu148
Important lumpsucker fishery along coasts in southern and western part.
Lu151
Important lumpsucker fishery along coast of Uummannap Timaa.
Lu155
Important lumpsucker fishery off coast north of mouth of Søndre Isortoq.
Lu157
Moderate lumpsucker fishery.
Lu158
Important lumpsucker fishery off southern, western and northern coast of Imartorngup
Timaa.
Se158
Wintering common eiders.
Se162
Mainly wintering common eiders.
Site specific species occurrence indicated with blue icons on map (seabird breeding colonies and harbour
seal sites)
Al350
Razorbills, puffins and black guillemots (S38).
Al351
Razorbills and black guillemots.
Gu331
Arctic terns.
Gu332, Gu343 Arctic terns.
Gu349, Gu352 Arctic terns.
Ha1318
Breeding site and possible winter site for harbour seal (S49).
Environmental Oil Spill Sensitivity Atlas for the West Greenland Coastal Zone
9-97
Map 6501 Species and Resource Occurrences
Human Use: R142,147,148,151
Human Use: R155,157,158,161,162
Human Use: R156,160
Alcids: Al350,351
Arctic Char: Ar147,151
Capelin: Ca147,151,155,156,160
Gulls: Gu332,343,349,352
Harbour seal: Ha149,1318
Lumpsucker: Lu142,147,148,151
Lumpsucker: Lu155,157,158
Seaducks: Se158,162
0
3
6
Month
9
12
Contents
Shoreline sensitivity
Keymap
Map 6501 - Maniitsoq
Shoreline sensitivity summary
Area
Sensitivity value
Ranking
141
142
147
148
149
150
151
155
157
158
161
162
47
26
25
22
20
15
33
32
29
33
27
60
Extreme
Moderate
Moderate
Low
Low
Low
Moderate
Moderate
Moderate
High
Moderate
Extreme
Physical Environment and Logistics
Countermeasures
In ice concentrations down to six tenths, in situ burning of oil in conjunction with tracking oiled ice is
recommended. In open water conditions in offshore and nearshore areas, containment for recovery or
burning is recommended. Dispersant application to protect waterfowl should be considered in the offshore
and nearshore waters.
Although no current information is available for the many inlets and fjords on this map, the tidal range (3 to
4 m), the geometry of the inlets, and the high reported tidal velocities in a few fjords, suggest that exclusion
booming (applicable in currents up to 0.4 m/s to 0.75 knots) of these features would not likely be
successful, and is thus not recommended. If local knowledge suggests areas where tidal velocities are less
than a knot, exclusion booming could be attempted across fjords or inlets that are up to a kilometre or less
in width. Alternatively, diversion booming could be attempted to protect sensitive areas, but even this will
not likely succeed in currents exceeding 1.5 m/s (3 knots), due to the excessive lengths of boom and the
number of intermediate anchors required to maintain the required angle of the boom to the current. The
requirement to constantly change boom angle with changing tidal stream direction would further complicate
diversion booming operations.
Offshore countermeasures represent the only practical method of protecting most shoreline areas,
including the selected area (S28) at 65°26' N, 53°09’ W.
Deploying 2000 m of boom at various locations around Maniitsoq could protect the harbour, providing
currents are in an acceptable range. Deploying 1000 m of boom at various locations around Napasoq could
protect its harbour, provided that currents are low enough to allow oil containment or diversion.
Shorelines shown on this map are entirely exposed rock which may not require active cleaning efforts
unless heavily contaminated with heavy oils.
Environmental Oil Spill Sensitivity Atlas for the West Greenland Coastal Zone
9-99
Contents
Physical Environment and Logistics
Keymap
MAP 6501 - Maniitsoq
Access
The nearshore waters in this area are largely uncharted and caution should be exercised. In general, the
waters offshore, nearshore, and within the fjords are deep, however, uncharted dangers may exist due to
shoaling and islets.
The prevailing current is ½ knot, setting to the NW in waters along the coast.
Anchorage is available at the settlement Napasoq, in the channel between Napasoq and Nunako (the
larger island to the east) in depths of 9 to 30 m. Berthing at the jetty has depths of 3.9 m alongside. The
mean high spring tide is 4.2 m, neap 2.0 m. A strong tidal stream runs between the islands in the vicinity.
The harbour freezes over from December to early April.
Maniitsoq is one of the larger Greenland towns and is navigable year-round. Anchorage is 1 mile east of
Maniitsoq in depths of 13 to 29 m. Berthing at the “Atlantkaj” on the northwest side of Hundeø is suitable
for vessels to 60 m length, 7.2 m draft alongside, with up to 100 m of berthing at the north end of the
harbour in depths to 4.0 m. Mean high spring tide is 4.2 m, neap 2.0 m. Ice forms locally in the area from
December to April but is easily broken up. Facilities in the harbour include cranes, boatyard, hospital with
fuel, water, and provisions available making this a good candidate for staging response operations in the
area.
An inner route exists from Maniitsoq to points north, offering shelter from the weather, but is incompletely
surveyed.
Shorelines in this area are exclusively rock, with islands and islets fronting the coast, making marine shore
access difficult.
An all-season, asphalt surface airport (799 x 30 m) is available at Maniitsoq.
Safe havens
A potential safe haven for vessel lightering operations is in Kangerluarsuk. It is in an area of moderate
sensitivity. If local knowledge suggests that tidal currents are sufficiently low, booms could be deployed
across the inner portions of the bay to contain any further release of oil.
Maps
Geodetic map: 65 V.1 Sukkertoppen. Nautical chart: 1314, 1410.
9-100
Environmental Oil Spill Sensitivity Atlas for the West Greenland Coastal Zone
Contents
Shoreline Sensitivity Map
`
Maniitsoq
Imartuneq
Keymap
Ka
nge
rlu
ars
uk
Legend
65°30'
Airphoto Keymap
Imartorngup
Timaa
Iso
rto
q
65°20'
Ivittusoq
Sø
nd
re
2000 m
M
ali
gis
sa
t
R
PXManiitsoq
OS(Sukkertoppen)
Uummannap Timaa
O
Uummannaq
O
Physical Environment & Logistics
Map 6501 Maniitsoq
65°10'
Kangarssuk
Alanngua
O
1000 m
S
NapsasoqS
65°00'
O Nunak
0
2
4
6
8
10 km
UTM, zone 22N, WGS84
53°00'
Environmental Oil Spill Sensitivity Atlas for the West Greenland Coastal Zone
52°45'
52°30'
Topographic base: G/250 Vector, Copyright Kort & Matrikelstyrelsen, 1998