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diff --git a/src/de/lmu/ifi/dbs/elki/math/geodesy/Clarke1880SpheroidEarthModel.java b/src/de/lmu/ifi/dbs/elki/math/geodesy/Clarke1880SpheroidEarthModel.java
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+package de.lmu.ifi.dbs.elki.math.geodesy;
+
+/*
+ This file is part of ELKI:
+ Environment for Developing KDD-Applications Supported by Index-Structures
+
+ Copyright (C) 2013
+ Ludwig-Maximilians-Universität München
+ Lehr- und Forschungseinheit für Datenbanksysteme
+ ELKI Development Team
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU Affero General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+import de.lmu.ifi.dbs.elki.utilities.Alias;
+import de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizer;
+
+/**
+ * The Clarke 1880 spheroid earth model.
+ * 
+ * Radius: 6378249.145 m
+ * 
+ * Flattening: 1 / 293.465
+ * 
+ * @author Erich Schubert
+ */
+@Alias({ "Clarke 1880" })
+public class Clarke1880SpheroidEarthModel extends AbstractEarthModel {
+  /**
+   * Static instance.
+   */
+  public static final Clarke1880SpheroidEarthModel STATIC = new Clarke1880SpheroidEarthModel();
+
+  /**
+   * Radius of the CLARKE1880 Ellipsoid in m (a).
+   */
+  public static final double CLARKE1880_RADIUS = 6378249.145; // m
+
+  /**
+   * Inverse flattening 1/f of the CLARKE1880 Ellipsoid.
+   */
+  public static final double CLARKE1880_INV_FLATTENING = 293.465;
+
+  /**
+   * Flattening f of the CLARKE1880 Ellipsoid.
+   */
+  public static final double CLARKE1880_FLATTENING = 1 / CLARKE1880_INV_FLATTENING;
+
+  /**
+   * Constructor.
+   */
+  protected Clarke1880SpheroidEarthModel() {
+    super(CLARKE1880_RADIUS, CLARKE1880_RADIUS * (1 - CLARKE1880_FLATTENING), CLARKE1880_FLATTENING, CLARKE1880_INV_FLATTENING);
+  }
+
+  /**
+   * Parameterization class.
+   * 
+   * @author Erich Schubert
+   * 
+   * @apiviz.exclude
+   */
+  public static class Parameterizer extends AbstractParameterizer {
+    @Override
+    protected Clarke1880SpheroidEarthModel makeInstance() {
+      return STATIC;
+    }
+  }
+}