(A50,F8.2,F7.2,4F6.1,2F5.0,F6.0,F5.0) Reference Longitude Latt. LatAn Sigma CCWRo Sigma MxAg MnAg PlLon PlLt IAGA: Barnes et al., 1980 -110.80 31.50 0.4 5.4 2.4 6.6 65. 56. -152. 79. IAGA: Bates et al., 1981 -121.80 46.20 -1.0 4.3 -32.6 5.6 37. 31. 145. 86. IAGA: Beck et al., 1977 -107.00 38.00 -3.5 4.9 -2.2 5.3 30. 22. 160. 85. IAGA: Beck et al., 1979 -122.50 46.00 -6.7 4.3 -22.8 5.6 45. 32. 162. 86. IAGA: Beck et al., 1980 -123.80 44.50 -8.0 5.9 -45.2 7.5 32. 26. 148. 86. IAGA: Beck et al., 1980 -123.50 44.10 5.0 8.4 -36.4 10.9 23. 10. -175. 84. IAGA: Beck et al., 1980 -123.70 45.00 -2.4 9.2 -49.5 11.9 42. 33. 158. 86. IAGA: Beck et al., 1982 -122.80 47.80 -2.1 7.7 -1.4 11.2 56. 38. -164. 87. IAGA: Beck et al., 1982 -121.50 48.60 -1.6 3.1 -8.8 4.3 37. 30. 145. 86. IAGA: Beck et al., 1986 -122.40 41.90 -3.1 4.9 -10.4 6.0 28. 18. 171. 85. IAGA: Beck, 1975 -122.00 48.60 -14.4 6.3-105.0 9.6 65. 35. -160. 84. IAGA: Beske et al., 1973 -123.00 47.50 1.3 4.3 -4.0 6.1 26. 17. 176. 84. IAGA: Beske et al., 1973 -123.00 47.50 0.3 5.5 -6.7 7.7 45. 40. 178. 87. IAGA: Best et al., 1973 -113.00 38.50 -14.4 9.1 -0.4 9.9 31. 28. 146. 86. IAGA: Bingham et al., 1972 -177.10 51.90 -4.7 4.9 -3.4 7.2 1. 0. 25. 89. IAGA: Bingham et al., 1972 -177.10 51.90 -3.6 6.1 3.7 9.1 1. 0. 25. 89. IAGA: Bingham et al., 1972 -172.00 53.00 2.6 5.0 -1.9 7.7 2. 0. 46. 89. IAGA: Bingham et al., 1972 -168.10 53.50 23.4 9.5 -24.5 14.4 2. 1. 54. 88. IAGA: Bingham et al., 1972 -168.10 53.50 2.6 5.4 -8.0 8.4 1. 0. 25. 89. IAGA: Bingham et al., 1972 -168.00 53.00 -5.9 5.1 9.0 7.8 1. 0. 25. 89. IAGA: Bingham et al., 1972 -167.00 54.00 0.0 5.2 -1.7 8.2 1. 0. 25. 89. IAGA: Bingham et al., 1976 -143.10 62.60 4.4 6.8 24.8 13.5 4. 3. 79. 88. IAGA: Bohnel et al., 1981 -97.00 19.50 -2.4 5.4 1.4 4.3 2. 0. 46. 89. IAGA: Bohnel et al., 1981 -97.00 19.50 -0.5 6.1 2.9 5.2 12. 3. 138. 87. IAGA: Bohnel et al., 1988 -100.00 17.00 7.5 6.0 19.7 4.8 49. 47. -160. 87. IAGA: Bohnel et al., 1989 -104.50 19.40 -4.7 7.0 10.4 7.3 70. 40. -157. 82. IAGA: Bohnel et al., 1989 -103.40 19.10 -9.2 7.4 15.5 7.2 83. 65. -166. 68. IAGA: Bohnel et al., 1989 -101.80 18.10 -12.5 8.0 28.6 7.0 65. 35. -160. 84. IAGA: Bohnel et al., 1990 -109.00 19.00 -1.4 4.8 1.3 3.8 1. 0. 25. 89. IAGA: Bol et al., 1992 -149.30 60.00 -14.9 5.7 103. 14.5 58. 56. -146. 83. IAGA: Bol, 1993 -147.10 60.90 -16.5 7.7 51.6 20.4 58. 56. -146. 83. IAGA: Brown et al., 1979 -121.70 41.70 -11.0 5.5 -3.5 6.5 1. 0. 25. 89. IAGA: Brown et al., 1985 -106.50 35.70 -2.1 8.9 -14.7 9.1 9. 8. 138. 86. IAGA: Brown et al., 1985 -106.30 36.00 -1.5 8.0 -13.3 8.2 8. 7. 127. 87. IAGA: Brown et al., 1985 -106.30 36.00 -1.8 8.0 -18.4 8.2 7. 4. 104. 88. IAGA: Brown et al., 1985 -106.20 35.70 2.1 9.6 20.9 9.8 3. 2. 68. 88. IAGA: Brown et al., 1986 -106.10 35.50 -12.0 6.7 17.4 7.4 47. 20. 163. 86. IAGA: Brown et al., 1993 -105.60 36.60 -4.4 5.8 3.1 6.1 5. 2. 79. 88. IAGA: Calderone et al., 1984 -113.50 33.50 -12.0 4.4 10.4 4.5 25. 14. -176. 84. IAGA: Calderone et al., 1990 -114.00 34.00 -5.6 4.6 -3.2 4.9 20. 12. -168. 84. IAGA: Cameron et al., 1970 -177.00 52.00 2.8 21.2 17.4 33.7 6. 4. 98. 88. IAGA: Cameron et al., 1970 -177.00 52.00 -22.2 13.1 43.7 22.8 56. 35. -171. 87. IAGA: Cameron et al., 1970 -177.00 52.00 2.2 5.5 7.2 8.2 1. 0. 25. 89. IAGA: Cameron et al., 1970 -143.00 62.00 9.2 6.4-108.6 13.0 5. 0. 70. 88. IAGA: Cameron et al., 1970 -143.00 62.00 3.9 6.1 6.6 12.4 5. 0. 70. 88. IAGA: Cameron et al., 1970 -121.70 44.40 -1.8 6.3 2.2 7.8 1. 0. 25. 89. IAGA: Cameron et al., 1970 174.00 53.00 9.7 6.2 -8.1 11.5 15. 12. -165. 83. IAGA: Campbell et al., 1956 -118.00 47.00 0.2 7.1 -11.3 9.6 23. 2. 173. 86. IAGA: Choiniere et al., 1979 -118.00 46.50 -3.0 5.7 -1.2 7.8 16. 10. -172. 84. IAGA: Cox et al., 1984 -168.00 59.30 3.1 5.7 -12.0 10.5 3. 0. 56. 89. IAGA: Cox, 1957 -123.50 44.80 -12.8 6.1 -74.8 8.3 56. 42. -157. 87. IAGA: Deutsch et al., 1971 -61.30 66.60 8.5 7.8 -25.9 18.1 61. 57. -149. 80. IAGA: Diehl et al., 1974 -106.50 37.50 3.7 5.5 -10.3 6.0 35. 26. 147. 86. IAGA: Diehl et al., 1980 -110.60 47.40 -1.9 5.7 10.2 8.1 53. 49. -148. 87. IAGA: Diehl et al., 1980 -109.70 48.20 2.4 5.3 9.2 7.9 54. 50. -145. 87. IAGA: Diehl et al., 1983 -110.10 47.90 -2.3 4.8 7.8 7.0 55. 48. -147. 87. IAGA: Diehl et al., 1983 -108.90 47.60 -5.6 6.1 -6.7 10.9 67. 59. -155. 76. IAGA: Diehl et al., 1988 -107.90 33.30 -2.7 3.8 3.5 3.9 36. 24. 150. 86. IAGA: Diehl, 1991 -112.00 46.10 -4.0 8.3 -22.0 13.4 83. 77. -168. 66. IAGA: Doell et al., 1969 -106.50 35.90 -5.9 5.6 1.6 5.8 2. 0. 46. 89. IAGA: Doughty et al., 1992 -114.80 46.40 -3.0 5.7 22.4 7.9 51. 44. -162. 87. IAGA: Doughty et al., 1992 -113.90 46.00 4.6 11.3 -49.9 15.6 51. 44. -162. 87. IAGA: Du Bois, 1959 -134.00 61.00 2.1 5.5 9.7 10.5 2. 0. 46. 89. IAGA: Earth Sciences Board, 1988 -118.80 34.00 -12.9 11.6 -83.5 12.8 22. 14. -171. 84. IAGA: Ellwood, 1982 -106.60 37.80 -7.8 13.5 2.1 14.7 29. 26. 154. 85. IAGA: Faulds et al., 1992 -117.00 38.00 -13.7 6.3 7.2 7.6 17. 14. -162. 83. IAGA: Faulds et al., 1992 -117.00 38.00 -0.1 6.0 0.1 7.3 17. 14. -162. 83. IAGA: Fox et al., 1985 -118.50 48.00 0.9 5.3 -19.3 7.8 55. 47. -149. 87. IAGA: Frisch et al., 1992 -83.10 8.30 -5.2 11.2 -8.0 8.6 65. 56. -152. 79. IAGA: Frisch et al., 1992 -80.50 7.20 -6.9 18.0 -61.8 12.9 65. 10. -172. 85. IAGA: Geissman, 1988 -106.60 35.90 -9.6 5.0 2.3 5.2 1. 0. 25. 89. IAGA: Gilliland et al., 1969 -103.30 29.30 -7.6 5.7 -2.2 5.3 36. 26. 147. 86. IAGA: Globerman et al., 1982 -123.10 47.00 -0.8 6.0 -18.7 8.8 55. 51. -143. 86. IAGA: Gose et al., 1992 -87.40 14.30 7.6 4.8 -7.3 3.6 14. 10. -179. 84. IAGA: Gose, 1970 -115.00 38.50 -9.0 7.3 0.8 8.4 24. 18. 178. 84. IAGA: Gose, 1985 -87.30 14.70 -10.8 11.5 45.4 9.4 61. 55. -148. 81. IAGA: Greenhaus et al., 1979 -120.70 35.30 -13.0 8.7 -54.8 9.3 28. 22. 163. 85. IAGA: Gromme et al., 1972 -116.00 39.00 -0.1 10.2 4.8 11.4 35. 31. 142. 86. IAGA: Gromme et al., 1986 -120.40 44.60 3.5 5.2 -9.8 6.7 49. 35. 176. 87. IAGA: Gromme, 1965 -121.00 40.00 -17.6 13.3 -0.9 16.0 24. 22. 170. 85. IAGA: Gunderson et al., 1991 -111.90 47.50 -4.2 7.3 -27.6 12.4 81. 71. -168. 66. IAGA: Haeussler et al., 1992 -134.00 56.90 -2.6 6.1 -3.6 11.5 25. 21. 170. 85. IAGA: Hagstrum et al., 1986 -105.50 36.60 -1.3 6.0 22.4 6.4 26. 25. 161. 85. IAGA: Hagstrum et al., 1986 -105.50 36.60 -1.6 5.3 -10.0 5.7 23. 22. 172. 84. IAGA: Hagstrum et al., 1986 -105.40 36.80 -4.4 4.3 4.1 4.5 28. 26. 155. 85. IAGA: Hagstrum et al., 1986 -105.40 36.80 -2.8 4.5 4.2 4.9 26. 21. 168. 85. IAGA: Hagstrum et al., 1987 -112.20 26.70 -0.5 5.1 0.3 4.7 24. 5. 176. 85. IAGA: Hagstrum et al., 1987 -113.00 32.40 0.7 4.8 -2.4 4.9 25. 20. 172. 84. IAGA: Hagstrum et al., 1987 -112.90 32.40 -46.3 10.8 -30.7 13.1 65. 62. -156. 75. IAGA: Hagstrum et al., 1989 -111.50 32.30 -3.7 7.1 -44.8 9.1 74. 65. -164. 69. IAGA: Hagstrum et al., 1989 -111.50 32.30 -6.3 8.9 -2.8 8.8 30. 25. 154. 85. IAGA: Hagstrum et al., 1989 -114.60 39.70 -9.0 8.3 0.6 9.3 36. 34. 149. 86. IAGA: Hagstrum et al., 1989 -114.60 39.60 0.6 4.2 30.6 4.8 36. 34. 149. 86. IAGA: Hagstrum et al., 1989 -114.30 39.60 5.8 5.8 59.9 6.5 36. 34. 149. 86. IAGA: Hagstrum et al., 1991 -102.00 32.00 6.2 9.3 -29.2 10.6 78. 68. -167. 67. IAGA: Hagstrum et al., 1991 -102.00 32.00 -3.0 7.3 -24.0 8.6 80. 65. -166. 68. IAGA: Hagstrum et al., 1991 -102.00 32.00 -7.6 5.2 -2.4 5.1 29. 25. 156. 85. IAGA: Hagstrum et al., 1994 -111.50 32.10 -6.6 10.5 -10.2 12.8 76. 70. -168. 66. IAGA: Hagstrum et al., 1994 -109.80 32.00 4.9 7.3 -12.5 8.9 76. 67. -166. 68. IAGA: Hagstrum, 1994 -110.80 31.20 -10.3 7.0 5.9 8.2 65. 60. -154. 77. IAGA: Hamilton et al., 1983 -131.30 58.50 5.6 6.3 -7.5 11.1 7. 1. 88. 88. IAGA: Hanna, 1967 -112.00 46.00 11.1 12.0 -6.2 16.3 56. 2. 173. 86. IAGA: Hanna, 1973 -112.50 46.00 7.9 8.9 -34.1 14.7 80. 70. -168. 66. IAGA: Hanna, 1973 -112.00 46.00 -1.3 8.0 -4.2 12.9 82. 78. -168. 66. IAGA: Harlan et al., 1988 -111.50 46.20 -6.5 5.1 14.1 7.1 53. 48. -150. 87. IAGA: Harris et al., 1987 -158.00 64.00 6.9 19.5 -1.5 61.2 55. 42. -158. 87. IAGA: Heinrichs, 1967 -120.00 39.40 -10.5 7.0 -23.5 7.7 4. 1. 67. 88. IAGA: Herrero-Bervera et al., 1986 -99.00 19.00 -1.8 4.9 3.4 3.9 1. 0. 25. 89. IAGA: Hicken et al., 1977 -132.20 53.50 1.1 7.0 -37.7 16.3 64. 60. -153. 77. IAGA: Hillhouse et al., 1982 -149.60 63.60 6.4 7.6 31.7 27.9 65. 56. -152. 79. IAGA: Hillhouse et al., 1985 -149.00 63.10 8.2 7.7 49.8 19.9 56. 50. -144. 86. IAGA: Hooper et al., 1979 -117.30 45.50 -6.2 5.3 -3.0 7.5 18. 14. -164. 83. IAGA: Hornafius, 1985 -120.00 34.50 -10.3 4.8 -85.2 5.4 15. 14. -159. 83. IAGA: Hornafius, 1985 -120.00 34.50 0.1 8.0 -34.4 8.1 8. 5. 116. 87. IAGA: Hornafius, 1985 -120.00 34.50 -8.2 5.2 -72.8 5.7 14. 11. -174. 84. IAGA: Hornafius, 1985 -120.00 34.50 -5.8 5.8 -41.2 6.0 11. 8. 151. 86. IAGA: Hudson et al., 1987 -118.00 39.90 3.0 6.7 22.0 7.8 32. 22. 156. 85. IAGA: Hudson et al., 1991 -118.00 40.00 -7.8 5.7 5.3 6.6 17. 8. -178. 85. IAGA: Hudson et al., 1991 -118.00 40.00 2.5 6.8 21.9 7.9 36. 23. 152. 86. IAGA: Hudson et al., 1994 -116.20 37.00 -5.2 5.7 3.6 6.1 16. 7. 177. 85. IAGA: Hudson, 1992 -116.30 37.00 -5.8 5.4 6.7 6.1 13. 11. 180. 84. IAGA: Irving et al., 1990 -125.50 49.00 2.8 6.6 9.1 9.9 51. 50. -150. 87. IAGA: Irving et al., 1990 -123.80 48.40 0.7 5.9 10.1 9.2 58. 52. -144. 85. IAGA: Irving et al., 1990 -123.70 48.50 12.3 6.8 18.0 10.7 58. 52. -144. 85. IAGA: Irving et al., 1990 -123.70 48.40 -6.6 5.5 25.2 8.6 58. 52. -144. 85. IAGA: Irving et al., 1990 -123.60 48.30 -13.1 6.4 33.1 10.1 58. 52. -144. 85. IAGA: Irving et al., 1990 -123.50 48.30 -32.6 7.8 -20.0 12.3 58. 52. -144. 85. IAGA: Jackson et al., 1990 -136.80 62.80 -5.6 8.3 0.3 17.0 2. 0. 46. 89. IAGA: Jacobson et al., 1980 -109.00 47.50 -5.3 6.2 -6.7 10.9 67. 61. -157. 75. IAGA: Janecke et al., 1991 -113.60 44.20 -8.2 6.6 15.1 8.7 51. 45. -160. 87. IAGA: Jolly et al., 1992 -112.10 47.10 -4.5 7.6 -1.5 12.6 83. 74. -168. 66. IAGA: Kamerling et al., 1979 -118.90 34.10 -7.9 6.2 -76.7 6.5 16. 10. -172. 84. IAGA: Kamerling et al., 1985 -119.60 34.00 -16.2 4.4 -77.6 4.3 32. 14. 173. 85. IAGA: Kanter et al., 1982 -118.30 35.20 10.1 6.0 -0.9 6.4 23. 10. -175. 84. IAGA: Kinoshita et al., 1971 -122.00 48.60 -25.7 6.2-112.4 9.4 65. 35. -160. 84. IAGA: Kono et al., 1967 -111.60 35.20 -1.9 6.9 1.4 7.0 5. 3. 85. 88. IAGA: Larson et al., 1969 -108.40 36.50 12.6 15.2 12.5 18.1 65. 2. -176. 85. IAGA: Larson et al., 1969 -105.00 37.40 6.9 9.5 3.7 10.2 39. 29. 148. 86. IAGA: Larson et al., 1969 -105.20 40.80 -14.6 20.0 -14.1 9.8 65. 55. -152. 79. IAGA: Larson et al., 1969 -105.20 40.80 -31.3 20.0 -17.5 10.0 65. 55. -152. 79. IAGA: Larson et al., 1973 -110.00 45.00 4.2 27.4 -7.9 41.9 65. 2. -176. 85. IAGA: Li et al., 1990 -116.50 40.80 -2.0 4.4 14.1 5.7 17. 14. -162. 83. IAGA: Lovlie et al., 1974 -79.60 38.40 -1.7 7.2 -6.6 8.1 49. 45. -164. 87. IAGA: MacConnell et al., 1994 -117.00 35.00 -1.6 4.6 -6.5 5.0 24. 18. 178. 84. IAGA: MacConnell et al., 1994 -117.00 35.00 -10.5 5.2 -25.4 5.7 24. 18. 178. 84. IAGA: Magill et al., 1981 -122.30 43.20 10.2 5.3 -27.5 6.6 30. 20. 164. 85. IAGA: Magill et al., 1981 -123.50 45.70 -1.7 5.1 -39.4 7.0 46. 43. -174. 87. IAGA: Mankinen et al., 1982 -117.80 36.00 -3.4 7.8 -3.3 8.1 2. 1. 54. 88. IAGA: Mankinen et al., 1986 -118.90 37.70 0.5 5.3 0.7 5.7 1. 0. 25. 89. IAGA: Mankinen, 1972 -122.50 38.50 -7.9 7.2 4.1 7.8 5. 3. 85. 88. IAGA: Mankinen, 1989 -122.40 38.40 -8.1 6.3 -0.3 6.9 8. 3. 107. 88. IAGA: Marquis et al., 1988 -135.50 61.10 -18.3 7.2 -34.2 29.5 73. 68. -166. 68. IAGA: Marquis et al., 1988 -135.00 61.00 -18.2 7.2 -34.2 29.1 73. 68. -166. 68. IAGA: McIntosh et al., 1992 -107.80 33.30 -3.1 4.1 2.0 4.2 36. 24. 150. 86. IAGA: McKee et al., 1980 -111.80 34.40 1.0 5.7 -2.4 5.8 12. 8. 158. 85. IAGA: McMahon et al., 1968 -105.30 40.00 0.3 11.5 17.9 15.3 65. 50. -151. 82. IAGA: Mitchell et al., 1989 -121.80 46.00 2.9 5.2 0.7 6.6 1. 0. 25. 89. IAGA: Molina-Garza et al., 1994 -94.20 16.30 3.1 6.2 -1.9 4.9 13. 12. -175. 84. IAGA: Mooser et al., 1974 -99.00 19.00 -3.2 5.7 -0.4 4.5 5. 0. 70. 88. IAGA: Mooser et al., 1974 -99.00 19.00 0.8 4.9 -1.4 3.9 29. 5. 172. 85. IAGA: Nairn et al., 1975 -105.00 24.00 -3.2 4.1 15.5 3.6 32. 23. 154. 85. IAGA: Panuska et al., 1990 -148.00 62.00 12.2 6.0 57.0 14.7 56. 43. -155. 87. IAGA: Ressetar et al., 1980 -79.40 38.40 3.9 7.8 -0.6 8.6 47. 42. -174. 87. IAGA: Reynolds et al., 1986 -107.30 38.00 8.9 7.0 6.9 7.8 24. 22. 170. 85. IAGA: Reynolds, 1977 -111.00 45.00 1.7 5.5 -4.3 6.9 2. 0. 46. 89. IAGA: Reynolds, 1977 -111.00 45.00 4.3 4.9 -1.3 6.1 1. 0. 25. 89. IAGA: Ross et al., 1989 -116.50 34.80 -0.3 7.5 -48.1 8.2 23. 16. -177. 84. IAGA: Sager et al., 1992 -104.00 29.50 -0.1 5.8 -20.5 5.3 29. 27. 152. 85. IAGA: Schweig, 1989 -117.50 36.30 -0.7 8.1 -2.7 8.5 8. 5. 116. 87. IAGA: Sheriff et al., 1980 -109.00 41.60 -3.3 6.0 6.9 6.8 2. 1. 54. 88. IAGA: Shive et al., 1977 -110.00 44.50 -0.2 6.4 5.1 8.4 49. 44. -166. 87. IAGA: Shive et al., 1977 -107.30 42.80 -3.3 7.3 5.7 9.2 49. 43. -168. 87. IAGA: Simpson et al., 1977 -123.50 44.50 -5.3 7.2 -62.6 10.0 56. 50. -144. 86. IAGA: Simpson et al., 1977 -123.50 44.50 -7.2 6.1 -65.9 8.5 56. 50. -144. 86. IAGA: Simpson et al., 1977 -123.50 44.50 0.7 10.4 -51.2 13.4 38. 35. 155. 86. IAGA: Souther et al., 1974 -130.00 57.50 -0.2 6.2 -2.5 10.8 6. 0. 77. 88. IAGA: Stamatakos et al., 1988 -148.30 61.60 -1.2 5.9 -41.5 13.1 48. 36. 176. 87. IAGA: Stone, 1970 -155.30 58.30 7.0 7.7 29.3 13.8 1. 0. 25. 89. IAGA: Stone, 1970 -135.70 57.00 10.1 13.3 26.1 23.2 1. 0. 25. 89. IAGA: Symons et al., 1989 -120.30 50.60 5.5 7.2 2.2 11.3 52. 47. -154. 87. IAGA: Symons, 1968 -127.50 52.50 4.7 9.3 -11.9 15.6 15. 10. -174. 84. IAGA: Symons, 1968 -127.50 52.50 -11.0 8.8 -44.4 19.3 77. 47. -160. 77. IAGA: Symons, 1969 -121.80 51.80 3.7 5.3 -3.1 8.0 15. 8. 177. 85. IAGA: Symons, 1969 -121.20 51.50 5.2 6.1 -0.9 9.1 10. 5. 131. 87. IAGA: Symons, 1971 -126.00 49.20 -25.6 4.3 -35.3 6.6 55. 45. -153. 87. IAGA: Symons, 1971 -125.60 49.00 -11.5 5.2 -43.3 9.2 62. 56. -149. 80. IAGA: Symons, 1971 -127.20 50.60 10.4 9.9 -6.8 15.0 35. 23. 152. 86. IAGA: Symons, 1971 -124.20 49.10 13.1 6.8 54.0 9.7 35. 23. 152. 86. IAGA: Symons, 1973 -123.60 48.40 -7.7 5.7 26.2 8.9 58. 52. -144. 85. IAGA: Symons, 1973 -121.50 49.30 1.4 4.2 -3.6 6.0 42. 34. 160. 86. IAGA: Symons, 1973 -121.50 49.30 9.1 7.9 -30.1 12.3 21. 16. -173. 84. IAGA: Symons, 1974 -129.60 54.30 10.7 5.3 5.8 9.3 50. 44. -164. 87. IAGA: Symons, 1977 -129.10 53.30 5.2 7.9 -52.5 20.8 75. 65. -165. 69. IAGA: Symons, 1977 -129.00 54.00 -16.8 7.8 -56.8 20.9 75. 65. -165. 69. IAGA: Symons, 1977 -129.00 53.50 -26.7 8.1 -5.3 21.1 80. 64. -166. 68. IAGA: Symons, 1977 -129.00 53.50 -16.5 7.9 -54.3 20.7 80. 64. -166. 68. IAGA: Symons, 1977 -129.00 54.00 6.4 5.8 -1.6 10.1 50. 44. -164. 87. IAGA: Symons, 1977 -128.80 53.70 -23.2 13.8 55.6 24.0 52. 42. -164. 87. IAGA: Terres et al., 1985 -118.60 34.80 1.4 5.8 -84.0 6.1 27. 21. 167. 85. IAGA: Terres et al., 1985 -118.40 34.80 -2.1 5.1 -39.8 5.4 27. 21. 167. 85. IAGA: Terres et al., 1985 -118.10 34.90 10.6 6.4-138.9 6.8 27. 21. 167. 85. IAGA: Terres et al., 1985 -118.10 34.90 -3.1 8.1 18.8 8.6 27. 21. 167. 85. IAGA: Terres et al., 1985 -118.10 34.90 -15.4 21.0 -89.5 22.9 27. 21. 167. 85. IAGA: Thrupp et al., 1986 -154.70 60.30 -12.5 8.6 50.0 35.6 71. 59. -159. 74. IAGA: Urrutia-Fucugauchi et al., 1977 -102.30 20.70 0.0 5.6 19.6 4.6 35. 23. 152. 86. IAGA: Urrutia-Fucugauchi et al., 1994 -102.50 20.20 -2.1 6.2 14.6 5.1 9. 0. 103. 88. IAGA: Urrutia-Fucugauchi, 1981 -106.10 28.40 -1.0 4.7 21.7 4.3 56. 35. -171. 87. IAGA: Urrutia-Fucugauchi, 1981 -98.80 18.70 -3.3 6.7 55.6 5.5 23. 5. 177. 85. IAGA: Vandall et al., 1990 -126.80 53.70 -10.0 6.0 -5.0 10.3 51. 49. -152. 87. IAGA: Vandall et al., 1992 -122.50 50.00 -3.1 4.8 -8.6 7.9 17. 15. -164. 83. IAGA: Vugteveen et al., 1981 -111.50 32.10 -7.1 7.2 -4.6 8.9 76. 68. -167. 67. IAGA: Vugteveen et al., 1981 -110.50 31.50 -1.3 5.5 -0.4 6.5 65. 61. -155. 76. IAGA: Warnock et al., 1993 -123.50 48.00 2.1 6.0 7.3 8.9 56. 45. -151. 86. IAGA: Watkins et al., 1971 -103.40 20.80 -0.2 8.1 7.3 6.6 10. 5. 131. 87. IAGA: Watkins, 1965 -120.20 42.60 -11.3 5.3 -6.5 6.6 20. 10. -172. 84. IAGA: Watkins, 1965 -119.60 44.50 -4.2 5.9 -10.0 8.1 21. 14. -169. 84. IAGA: Wells et al., 1985 -123.50 46.50 -4.7 4.7 -27.0 6.6 50. 42. -168. 87. IAGA: Wells et al., 1985 -123.00 46.30 -9.3 7.6 -18.0 10.2 39. 35. 157. 86. IAGA: Wynne et al., 1992 -115.30 50.00 -0.1 7.1 -12.9 15.3 75. 56. -161. 74. IAGA: Young et al., 1974 -113.40 35.50 -8.4 6.5 -10.5 7.3 19. 16. -170. 84.