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Table of Contents - The Atmospheric Studies Group at TRC

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Section 2: Geophysical D<strong>at</strong>a Processors<br />

LAZA: Lambert Azimuthal Equal Area<br />

False Easting and Northing (km) <strong>at</strong> the projection origin<br />

(Used only if PMAP= TTM, LCC, or LAZA)<br />

(FEAST) Default=0.0 ! FEAST = 0.0 !<br />

(FNORTH) Default=0.0 ! FNORTH = 0.0 !<br />

<strong>Table</strong> 2-14 (continued)<br />

Sample MAKEGEO Control File<br />

(MAKEGEO.INP)<br />

UTM zone (1 to 60)<br />

(Used only if PMAP=UTM)<br />

(IUTMZN) No Default ! IUTMZN = 19 !<br />

Hemisphere for UTM projection<br />

(Used only if PMAP=UTM)<br />

(UTMHEM) Default: N ! UTMHEM = N !<br />

N : Northern hemisphere projection<br />

S : Southern hemisphere projection<br />

L<strong>at</strong>itude and Longitude (decimal degrees) <strong>of</strong> projection origin<br />

(Used only if PMAP= TTM, LCC, PS, EM, or LAZA)<br />

(RLAT0) No Default ! RLAT0 = 40.0N !<br />

(RLON0) No Default ! RLON0 = 70.0W !<br />

TTM : RLON0 identifies central (true N/S) meridian <strong>of</strong> projection<br />

RLAT0 selected for convenience<br />

LCC : RLON0 identifies central (true N/S) meridian <strong>of</strong> projection<br />

RLAT0 selected for convenience<br />

PS : RLON0 identifies central (grid N/S) meridian <strong>of</strong> projection<br />

RLAT0 selected for convenience<br />

EM : RLON0 identifies central meridian <strong>of</strong> projection<br />

RLAT0 is REPLACED by 0.0N (Equ<strong>at</strong>or)<br />

LAZA: RLON0 identifies longitude <strong>of</strong> tangent-point <strong>of</strong> mapping plane<br />

RLAT0 identifies l<strong>at</strong>itude <strong>of</strong> tangent-point <strong>of</strong> mapping plane<br />

M<strong>at</strong>ching parallel(s) <strong>of</strong> l<strong>at</strong>itude (decimal degrees) for projection<br />

(Used only if PMAP= LCC or PS)<br />

(RLAT1) No Default ! RLAT1 = 30.0N !<br />

(RLAT2) No Default ! RLAT2 = 60.0N !<br />

LCC : Projection cone slices through Earth's surface <strong>at</strong> RLAT1 and RLAT2<br />

PS : Projection plane slices through Earth <strong>at</strong> RLAT1<br />

(RLAT2 is not used)<br />

----------<br />

Note: L<strong>at</strong>itudes and longitudes should be positive, and include a<br />

letter N,S,E, or W indic<strong>at</strong>ing north or south l<strong>at</strong>itude, and<br />

east or west longitude. For example,<br />

35.9 N L<strong>at</strong>itude = 35.9N<br />

118.7 E Longitude = 118.7E<br />

2-55

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