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Archipelago

    Southern Ocean

    64°19′S 62°57′W

    Melchior Islands

    Part of Palmer Archipelago

    The Melchior Islands are a group of many low, ice-covered islands lying near the center of Dallmann Bay between Brabant Island and Anvers Island in the Palmer Archipelago, Antarctica. They were first seen but left unnamed by a German expedition under Eduard Dallmann, 1873–74.

    Argentina operates the summer-only Melchior Base on the Melchoir Islands in Dallmann Bay between Brabant and Anvers islands. The station has been used for weather and marine biology research.
    Argentina operates the summer-only Melchior Base on the Melchoir Islands in Dallmann Bay between Brabant and Anvers islands. The station has been used for weather and marine biology research.

    David Stanley from Nanaimo, Canada / CC BY 2.0

    Chart

    32 landforms

    Overview

    The Melchior Islands are a group of many low, ice-covered islands lying near the center of Dallmann Bay between Brabant Island and Anvers Island in the Palmer Archipelago, Antarctica. They were first seen but left unnamed by a German expedition under Eduard Dallmann, 1873–74. The islands were resighted and roughly charted by the Third French Antarctic Expedition under Jean-Baptiste Charcot, 1903–1905. Charcot named what he believed to be the large easternmost island in the group "Île Melchior" after Vice Admiral Jules Melchior of the French Navy, but later surveys proved Charcot's Île Melchior to be two islands, now called Eta Island and Omega Island. The name Melchior Islands has since become established for the whole island group now described, of which Eta Island and Omega Island form the eastern part, while the Sigma Islands mark the northern limit of the islands. The group was roughly surveyed in 1927 by Discovery Investigations personnel in the RRS Discovery, and was resurveyed by Argentine expeditions in 1942 and 1943, and again in 1948. The semi-circular arrangement of Lambda, Epsilon, Alpha and Delta Islands forms a small harbor called Inner Harbor. Its descriptive name was probably given by Discovery Investigations personnel who roughly surveyed the harbor in 1927. It was resurveyed by Argentine expeditions in 1942, 1943 and 1948.

    From Wikipedia, CC BY-SA 4.0

    Census, cataloged

    • Major islands2
    • Minor islands10
    • Islets20
    • Rocks & skerries0

    Major islands

    2
    • Eta Island

      Area
      3.5 km²
      High point
      171 m

      5 nmi) long, which lies immediately north of Omega Island in the Melchior Islands, Palmer Archipelago.

    • Omega Island

      Area
      3.3 km²
      High point
      195 m

      7 kilometres (2 nmi) long, which lies immediately south of Eta Island in the Melchior Islands, Palmer Archipelago.

    Minor islands

    10
    • Lambda Island

      Area
      1.5 km²
      High point
      136 m
    • Gamma Island

      Area
      0.73 km²
      High point
      151 m
    • Bremen Island

      Area
      0.49 km²
      High point
      122 m
    • Kappa Island

      Area
      0.23 km²
      High point
      78 m
    • Delta Island

      Area
      0.14 km²
      High point
      72 m
    • Theta Islands

      Area
      0.14 km²
      High point
      22 m
    • Unnamed island

      Area
      0.12 km²
      High point
      72 m
    • Unnamed island

      Area
      0.1 km²
      High point
      39 m
    • Pabellón Island

      Area
      —

      size unknown

    • Tripod Island

      Area
      —

      size unknown

    Islets

    20
    • Unnamed island23 m · 0.08 km²
    • Unnamed island33 m · 0.08 km²
    • Unnamed island34 m · 0.06 km²
    • Peace Island9 m · 0.06 km²
    • Epsilon Island33 m · 0.05 km²
    • Psi Islands13 m · 0.05 km²
    • Alpha Island35 m · 0.04 km²
    • Unnamed island24 m · 0.03 km²
    • Unnamed island34 m · 0.03 km²
    • Unnamed island0.02 km²
    • Unnamed island35 m · 0.02 km²
    • Unnamed island0.02 km²

    Also in the area

    14

    Inside the group's outline but not confirmed as members by any source.

    • Unnamed island102 m · 0.43 km²
    • Unnamed island0.17 km²
    • Unnamed island60 m · 0.16 km²
    • Unnamed island73 m · 0.13 km²
    • Unnamed island0.11 km²
    • Unnamed island19 m · 0.07 km²
    • Unnamed island10 m · 0.06 km²
    • Unnamed island10 m · 0.06 km²
    • Unnamed island21 m · 0.06 km²
    • Unnamed island0.05 km²
    • Unnamed island0.05 km²
    • Unnamed island0.05 km²

    Figures

    Comparative heights

    Sea level50 m100 m150 m200 m195 mOmega171 mEta151 mGamma136 mLambda122 mBremen78 mKappa72 mDelta35 mAlpha33 mEpsilon22 mTheta Islands13 mPsi Islands9 mPeace
    High points by island, metres above sea level.

    Islands by area

    0.0010.010.1110Eta: 3.5 km²EtaOmega: 3.3 km²OmegaLambda: 1.5 km²LambdaGamma: 0.73 km²GammaBremen: 0.49 km²BremenUnnamed island: 0.43 km²Unnamed islandKappa: 0.23 km²KappaUnnamed island: 0.17 km²Unnamed islandUnnamed island: 0.16 km²Unnamed islandDelta: 0.14 km²DeltaTheta Islands: 0.14 km²Theta IslandsUnnamed island: 0.13 km²Unnamed islandUnnamed island: 0.12 km²Unnamed islandUnnamed island: 0.11 km²Unnamed islandUnnamed island: 0.1 km²Unnamed islandUnnamed island: 0.08 km²Unnamed islandUnnamed island: 0.08 km²Unnamed islandUnnamed island: 0.07 km²Unnamed islandUnnamed island: 0.06 km²Unnamed islandUnnamed island: 0.06 km²Unnamed islandUnnamed island: 0.06 km²Unnamed islandPeace: 0.06 km²PeaceUnnamed island: 0.06 km²Unnamed islandEpsilon: 0.05 km²EpsilonUnnamed island: 0.05 km²Unnamed islandPsi Islands: 0.05 km²Psi IslandsUnnamed island: 0.05 km²Unnamed islandUnnamed island: 0.05 km²Unnamed islandAlpha: 0.04 km²AlphaUnnamed island: 0.04 km²Unnamed islandUnnamed island: 0.03 km²Unnamed islandUnnamed island: 0.03 km²Unnamed islandUnnamed island: 0.02 km²Unnamed islandUnnamed island: 0.02 km²Unnamed islandUnnamed island: 0.02 km²Unnamed islandUnnamed island: 0.02 km²Unnamed islandBeta: 0.01 km²BetaUnnamed island: 0.01 km²Unnamed islandUnnamed island: 0.01 km²Unnamed islandUnnamed island: 1 haUnnamed island
    km², log scale. 2 without a known area.
    Eta Island3.5 km²
    Omega Island3.3 km²
    Lambda Island1.5 km²
    Gamma Island0.73 km²
    Bremen Island0.49 km²
    Unnamed island0.43 km²
    Kappa Island0.23 km²
    Unnamed island0.17 km²
    Unnamed island0.16 km²
    Delta Island0.14 km²
    Theta Islands0.14 km²
    Unnamed island0.13 km²
    Unnamed island0.12 km²
    Unnamed island0.11 km²
    Unnamed island0.1 km²
    Unnamed island0.08 km²
    Unnamed island0.08 km²
    Unnamed island0.07 km²
    Unnamed island0.06 km²
    Unnamed island0.06 km²
    Unnamed island0.06 km²
    Peace Island0.06 km²
    Unnamed island0.06 km²
    Epsilon Island0.05 km²
    Unnamed island0.05 km²
    Psi Islands0.05 km²
    Unnamed island0.05 km²
    Unnamed island0.05 km²
    Alpha Island0.04 km²
    Unnamed island0.04 km²
    Unnamed island0.03 km²
    Unnamed island0.03 km²
    Unnamed island0.02 km²
    Unnamed island0.02 km²
    Unnamed island0.02 km²
    Unnamed island0.02 km²
    Beta Island0.01 km²
    Unnamed island0.01 km²
    Unnamed island0.01 km²
    Unnamed island1 ha
    Unnamed island0.7 ha
    Unnamed island0.6 ha
    Unnamed island0.6 ha
    Unnamed island0.5 ha

    Groups within

    7

    Sources

    Facts

    • Geometry, areas and high points: OpenStreetMap contributors (ODbL), Copernicus GLO-30, via Talus.
    • Wikidata
    • Talus
    • Wikipedia

    Photographs