The DMA Multiple Regression Equations transformation method shifts coordinate values between geodetic datums. It can be defined for local geodetic datums worldwide. The DMA Multiple Regression Equations method uses Doppler-derived parameters and provides a general solution with limited accuracy. It provides a transformation that is typically accurate to within 3-10 meters for a well defined area.
The main advantage of the DMA Multiple Regression Equations method lies in the modeling of distortions for datums that cover continental-sized land areas. This achieves a better fit in geodetic applications than the Molodensky method.
The "MRE" DatumShift has the following Parameters:
|
Parameter Name |
Parameter String |
Units |
|
Datum ID |
datum_id |
Long |
Where the Datum ID is one of the following:
Datum Name |
Datum ID |
Adindan |
1 |
Australian Geodetic 66 |
29 |
Australian Geodetic 84 |
30 |
Arc50 (Botswana, Lesotho, Malawi, Swaziland, Zambia, Zimbabwe) |
13 |
Arc60 (Kenya, Tanzania) |
22 |
Bellevue (IGN) (Efrate & Erromango, New Hebrides) |
32 |
Bermuda 1957 |
33 |
Bogota Observatory (Colombia) |
35 |
Campo Inchausepe (Argentina) |
36 |
Canton Astro 1966 (Phoenix Islands) |
37 |
Cape 1966 (South Africa) |
38 |
Cape Canaveral (Florida & Bahama) |
39 |
Carthage (Tunisia) |
40 |
Chatham 1971 (Chatham Island) |
41 |
Chua Astro (Paraguay) |
42 |
Corrego Alegre (Brazil) |
43 |
Djakarta (Sumatra) |
45 |
ED50 (Western Europe) |
48 |
ED50 (United Kingdom/Ireland) |
50 |
ED50 United Kingdom only |
51 |
ED50 (Cyprus) |
52 |
ED50 (Egypt) |
53 |
ED50 (Iran) |
54 |
Geodetic 1949 (New Zealand) |
64 |
Guam 1963 (Guam Island) |
66 |
Hjorsey 1955 (Iceland) |
68 |
Indian (Thailand and Vietnam only) |
73 |
Ireland 1965 |
75 |
Kandawala (Sri Lanka) |
79 |
Kertau 1948 (West Malaysia & Singapore) |
81 |
Liberia 1964 |
85 |
Luzon (Phillipines exept Mindanao Island) |
86 |
Merchich (Morocco) |
91 |
Minna (Nigeria) |
93 |
Nad27 (CONUS) |
100 |
NAD Alaska |
103 |
NAD Canada |
105 |
NAD Caribbean |
112 |
NAD Mexico, Central America |
116 |
Nahrwan (Masirah Island, Oman & United Arab Emirates only |
96 |
Old Egyptian |
120 |
Old Hawaiian |
121 |
Oman |
126 |
Ordnance Survey of Great Britain 1936 (UK) |
127 |
Provisional South American 1956 (Bol,Ch,Col,Ecu,Guyana,Peru,Ven) |
133 |
Puerto Rico (& Virgin Islands) |
143 |
Qatar National (Qatar Island, [Persian Gulf]) |
144 |
South American Datum 1969 |
153 |
Southwest Base (Azores) |
168 |
Timbalai 1948 (Brunei) |
169 |
Tokyo |
170 |
Wake Eniwetok 1960 (Kwajalein Atoll Area only) |
176 |
Zanderij (Suriname) |
180 |
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