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9.27

Sector 9. The Bismarck Archipelago

A W current, with a rate of about 1 knot, has been ex- perienced in the channel, but it did not extend beyond the limits of the channel on the coast of New Ireland.

There are several small boat harbors along the part of the N Ireland coast that forms the N part of the channel.

9.27

New Ireland—Northwest Coast

9.28 North Cape (2°33'S., 150°49'E.), marked by a light,

is low and covered with coconut palms. The coast SE of the cape has been previously described in paragraph 9.9.

9.28

The NW coast of New Ireland, between its NW point and

North Cape, is composed of two peninsulas, between which lies Balgai Bay. Mud and sand borders the NW side of the SW peninsula and gives place to mangrove that extends around the bay. The mangrove is backed by low hills with swamps in many of the low depressions between them. The swampy area around Balgai Bay is the largest area of swamp on New Ire- land.

9.28

Sandy shores are found along the NW end of the NE penin-

sula. Backing the sandy shore along the SW end of that penin- sula is a broad area of low ground that gives place NW to a strip of low ground, about 91m wide, that is backed by a grassy ridge. The ridge is about 9.1m high, but in places it is almost 12.2m high and steep. Kavieng, the most important settlement on New Ireland, is situated close inland of the ridge.

9.28

The islands and islets lying between New Ireland and New

Hanover are generally low and flat. Around the islands are reef-fringed stretches of sand that alternate with extensive areas of swamps and bordering mangrove. Some of the smaller islands and islets are almost barren, but most of them are wooded. Coconut plantations are found on the larger islands. New Hanover is hilly and mountainous, with a maximum

9.28

height of 875m located near the middle of the SW side of the island. The mountains decrease in height toward the S coast. The island slopes down sharply in the N to a flat plain. Mount Suilaua, about 3 miles S of the summit, is a sharp volcanic cone with a serrated peak, 566m high. Mount Deimling, 650m high and prominent, is about 9.3 miles ENE of Mount Suilaua. The mountain ridge divides toward the center of the island. The W extremity of New Hanover slopes up to Mount Pavialamis, 7.5 miles E. The peaks of the island are usually covered with cloud or haze.

9.28

Between the E coast of New Hanover and the NW end of

New Ireland, there are many islands, reefs, and shoals. Two navigable and deep passages, Steffen Strait and Byron Strait, lead through these dangers. The former is the more important, as channels connect it with Kavieng Harbor.

9.28

The S and SW coasts of New Hanover are fringed by reefs,

but seldom beyond a distance of 0.5 mile. The NW coast of the island is fringed with a reef to about 3 miles offshore. Many coral islets are on the reef.

9.28

A barrier reef is off the NE coast of New Hanover and ex-

tends in a SE direction to the entrance of Byron Strait. Several islands are on this reef.

Off-lying Islands and Dangers

9.29 Tingwon Group, 15 miles WSW of New Hanover, are

three low wooded islets on the E part of a narrow reef which is

Pub. 126

apparently steep-to. The islets, composed of coral, limestone, and sand, are quite flat, but some have low dune-like ridges. Coconut palms are found on all the islets, and at the N end of Tingwon Island there is a thin forest and a small native village. A small craft anchorage is in a small cove about 1.5 mile WNW of the S point of Beligila Islet.

9.29

Caution.—It has been reported (1993) that the Tingwon

Group lies 2 miles W of its charted position. 9.30 Tench Island (1°38'S., 150°43'E.) is 0.5 mile long,

oval-shaped, and prominent from offshore. The W part of the island is densely wooded. Reefs extend up to 0.2 mile offshore, except for one place on the W side.

9.30

Emirau Island (1°38'S., 150°00'E.) is deeply indented and

has some densely-wooded hills, about 37m high, on its N part. It is about 47 miles N of the W end of New Hanover. When seen from NW, it appears saddle-shaped towards its N end. There are stretches of sand around the island, but considerable parts of the island, particularly the NE coast, are composed of cliffs that rise from the water’s edge or close inland from the shore. On the S part of the islands are stretches of mangrove and areas of swamp. There are several coconut plantations on the S part of the island. An air facility is situated near the middle of the N coast of the island.

Winds—Weather.—The Northwest Monsoon lasts from December through March. It is a season of sudden squalls, with calm weather in between. During the Southeast Monsoon (May to September), there is a steady continuous blow, with sudden squalls. Some very heavy storms from the SW occur during the doldrums, between seasons, which sometimes are a 4 or 6 weeks late or early. Average surface wind velocities are 5 to 6 knots during the afternoons. Land and sea breeze effects are negligible. The heaviest rain occurs during the Northwest Monsoon. A

9.30 9.30

maximum of 485mm per month occurs during July and Au- gust.

Tides—Currents.—Tides are irregular, but mostly of a di- urnal nature. Springs rise 0.9m and neaps rise 0.3m.

9.30 9.30

Currents in the vicinity of Emirau Island set with the pre-

vailing wind and are not strong. There are tide rips off the SW end of the island.

9.30

Depths—Limitations.—Emirau Island is fringed by a shelf

of coral reef which, along the S and SW coasts, is surmounted by small islands and islets. Outside the fringing reef are several small shoal patches. The outer danger, a 9.1m shoal, is about 5.5 miles W of the SW end of the island. The shoal has a dia- meter of 320m. A shoal tongue, as defined by the 20m curve, extends 2 miles NW from Cape Tietgens.

9.30

of the island.

9.30 9.30

S end of the island.

9.30

A 5.5m shoal was reported about 1.5 miles NW of the N end A 1.8m shoal, about 0.2 mile long, is about 0.5 mile E of the A shoal area, about 0.3 mile long and having depths of 7.3 to

12.8m, is located about 1 mile N of the E end of the island. Caution.—Emirau Island has been reported (1996) to lie 3

miles SW of its charted position. 9.31 Hamburg Bay (1°38'S., 149°58'E.) (World Port

Index No. 56740) indents the N side of Emirau Island. The bay is 3 miles wide, between Cape Ballin and Cape Tietgens, the NW end of the island, and indents the coast to a distance of 2 Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81  |  Page 82  |  Page 83  |  Page 84  |  Page 85  |  Page 86  |  Page 87  |  Page 88  |  Page 89  |  Page 90  |  Page 91  |  Page 92  |  Page 93  |  Page 94  |  Page 95  |  Page 96  |  Page 97  |  Page 98  |  Page 99  |  Page 100  |  Page 101  |  Page 102  |  Page 103  |  Page 104  |  Page 105  |  Page 106  |  Page 107  |  Page 108  |  Page 109  |  Page 110  |  Page 111  |  Page 112  |  Page 113  |  Page 114  |  Page 115  |  Page 116  |  Page 117  |  Page 118  |  Page 119  |  Page 120  |  Page 121  |  Page 122  |  Page 123  |  Page 124  |  Page 125  |  Page 126  |  Page 127  |  Page 128  |  Page 129  |  Page 130  |  Page 131  |  Page 132  |  Page 133  |  Page 134  |  Page 135  |  Page 136  |  Page 137  |  Page 138  |  Page 139  |  Page 140  |  Page 141  |  Page 142  |  Page 143  |  Page 144  |  Page 145  |  Page 146  |  Page 147  |  Page 148  |  Page 149  |  Page 150  |  Page 151  |  Page 152  |  Page 153  |  Page 154  |  Page 155  |  Page 156  |  Page 157  |  Page 158  |  Page 159  |  Page 160  |  Page 161  |  Page 162  |  Page 163  |  Page 164  |  Page 165  |  Page 166  |  Page 167  |  Page 168  |  Page 169  |  Page 170  |  Page 171  |  Page 172  |  Page 173  |  Page 174  |  Page 175  |  Page 176  |  Page 177  |  Page 178  |  Page 179  |  Page 180  |  Page 181  |  Page 182  |  Page 183  |  Page 184  |  Page 185  |  Page 186  |  Page 187  |  Page 188  |  Page 189  |  Page 190  |  Page 191  |  Page 192  |  Page 193  |  Page 194  |  Page 195  |  Page 196  |  Page 197  |  Page 198  |  Page 199  |  Page 200  |  Page 201  |  Page 202  |  Page 203  |  Page 204  |  Page 205  |  Page 206  |  Page 207  |  Page 208  |  Page 209  |  Page 210  |  Page 211  |  Page 212  |  Page 213  |  Page 214  |  Page 215  |  Page 216  |  Page 217  |  Page 218  |  Page 219  |  Page 220  |  Page 221  |  Page 222  |  Page 223  |  Page 224  |  Page 225  |  Page 226  |  Page 227  |  Page 228  |  Page 229  |  Page 230  |  Page 231  |  Page 232  |  Page 233  |  Page 234  |  Page 235  |  Page 236  |  Page 237  |  Page 238  |  Page 239  |  Page 240  |  Page 241  |  Page 242  |  Page 243  |  Page 244  |  Page 245  |  Page 246  |  Page 247  |  Page 248  |  Page 249  |  Page 250  |  Page 251  |  Page 252  |  Page 253  |  Page 254  |  Page 255  |  Page 256  |  Page 257  |  Page 258  |  Page 259  |  Page 260  |  Page 261  |  Page 262  |  Page 263  |  Page 264  |  Page 265  |  Page 266  |  Page 267  |  Page 268  |  Page 269  |  Page 270  |  Page 271  |  Page 272  |  Page 273  |  Page 274  |  Page 275  |  Page 276  |  Page 277  |  Page 278  |  Page 279  |  Page 280  |  Page 281  |  Page 282  |  Page 283  |  Page 284  |  Page 285  |  Page 286  |  Page 287  |  Page 288  |  Page 289  |  Page 290  |  Page 291  |  Page 292  |  Page 293  |  Page 294  |  Page 295  |  Page 296  |  Page 297  |  Page 298  |  Page 299  |  Page 300  |  Page 301  |  Page 302  |  Page 303  |  Page 304  |  Page 305  |  Page 306  |  Page 307  |  Page 308  |  Page 309  |  Page 310
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