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Hayford ellipsoid

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25: 351: 95: 54: 208: 105: 392: 76: 163: 135: 120: 142: 385: 149: 211:
IUGG in 1924, and was recommended for use all over the world. Many countries retained their previous ellipsoids.
37: 275: 267: 47: 41: 33: 131: 421: 329: 58: 378: 200: 301: 416: 262:= 1:299.15), which was a European ellipsoid, the Hayford ellipsoid also included measurements from 193: 350: 156: 337: 203:(1868–1925), which was introduced in 1910. The Hayford ellipsoid was also referred to as the 411: 240: 317: 215: 362: 405: 263: 94: 233: 271: 197: 112: 300:
It has since been replaced as the "International ellipsoid" by the newer
358: 185: 305: 266:, as well as other continents (to a lesser extent). It also included 274:
divergences. Hayfords ellipsoid did not reach the accuracy of
88: 18: 239:= 1:297.00. Unlike some of its predecessors, such as the 366: 116: 46:but its sources remain unclear because it lacks 16:Earth-approximating ellipsoid introduced in 1910 386: 209:International Union of Geodesy and Geophysics 8: 121:introducing citations to additional sources 393: 379: 77:Learn how and when to remove this message 214:The Hayford ellipsoid is defined by its 111:Relevant discussion may be found on the 7: 347: 345: 14: 207:after it had been adopted by the 349: 104:relies largely or entirely on a 93: 23: 1: 365:. You can help Knowledge by 205:International ellipsoid 1924 438: 344: 278:ellipsoid published 1906 ( 196:named after the American 32:This article includes a 270:measurements to reduce 61:more precise citations. 361:-related article is a 334:Geodesy for the layman 330:Defense Mapping Agency 201:John Fillmore Hayford 117:improve this article 194:reference ellipsoid 132:"Hayford ellipsoid" 34:list of references 374: 373: 302:Lucerne ellipsoid 190:Hayford ellipsoid 182: 181: 167: 87: 86: 79: 429: 395: 388: 381: 353: 346: 296: 292: 290: 287: 281: 261: 257: 255: 252: 246: 241:Bessel ellipsoid 238: 231: 229: 226: 220: 177: 174: 168: 166: 125: 97: 89: 82: 75: 71: 68: 62: 57:this article by 48:inline citations 27: 26: 19: 437: 436: 432: 431: 430: 428: 427: 426: 402: 401: 400: 399: 342: 326: 318:Earth ellipsoid 314: 294: 288: 285: 283: 279: 259: 253: 250: 248: 244: 236: 227: 224: 222: 218: 216:semi-major axis 178: 172: 169: 126: 124: 110: 98: 83: 72: 66: 63: 52: 38:related reading 28: 24: 17: 12: 11: 5: 435: 433: 425: 424: 419: 414: 404: 403: 398: 397: 390: 383: 375: 372: 371: 354: 340: 339: 325: 322: 321: 320: 313: 310: 180: 179: 115:. Please help 101: 99: 92: 85: 84: 42:external links 31: 29: 22: 15: 13: 10: 9: 6: 4: 3: 2: 434: 423: 422:Geodesy stubs 420: 418: 415: 413: 410: 409: 407: 396: 391: 389: 384: 382: 377: 376: 370: 368: 364: 360: 355: 352: 348: 343: 338: 336:, 1983, p. 8 335: 331: 328: 327: 323: 319: 316: 315: 311: 309: 307: 303: 298: 277: 273: 269: 265: 264:North America 242: 235: 217: 212: 210: 206: 202: 199: 195: 191: 187: 176: 173:November 2009 165: 162: 158: 155: 151: 148: 144: 141: 137: 134: –  133: 129: 128:Find sources: 122: 118: 114: 108: 107: 106:single source 102:This article 100: 96: 91: 90: 81: 78: 70: 67:November 2009 60: 56: 50: 49: 43: 39: 35: 30: 21: 20: 367:expanding it 356: 341: 333: 299: 297:= 1:298.3). 213: 204: 189: 183: 170: 160: 153: 146: 139: 127: 103: 73: 64: 53:Please help 45: 304:(1967) and 230:.000 m 59:introducing 417:Geophysics 406:Categories 234:flattening 143:newspapers 276:Helmert's 272:plumbline 268:isostatic 198:geodesist 113:talk page 312:See also 308:(1980). 232:and its 412:Geodesy 359:geodesy 324:Sources 291: m 256: m 186:geodesy 157:scholar 55:improve 306:GRS 80 188:, the 159:  152:  145:  138:  130:  357:This 192:is a 164:JSTOR 150:books 40:, or 363:stub 136:news 289:200 286:378 254:397 251:377 228:388 225:378 184:In 119:by 408:: 332:: 293:, 282:= 258:, 247:= 221:= 44:, 36:, 394:e 387:t 380:v 369:. 295:f 284:6 280:a 260:f 249:6 245:a 243:( 237:f 223:6 219:a 175:) 171:( 161:· 154:· 147:· 140:· 123:. 109:. 80:) 74:( 69:) 65:( 51:.

Index

list of references
related reading
external links
inline citations
improve
introducing
Learn how and when to remove this message

single source
talk page
improve this article
introducing citations to additional sources
"Hayford ellipsoid"
news
newspapers
books
scholar
JSTOR
geodesy
reference ellipsoid
geodesist
John Fillmore Hayford
International Union of Geodesy and Geophysics
semi-major axis
flattening
Bessel ellipsoid
North America
isostatic
plumbline
Helmert's

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