Evaporation (mean annual) of South Africa (WR90 file eip.e00)

mav_wr90

Institute for Water Quality Studies metadata.
Summary created by Elna with catalog.aml on 1999-04-01 - 14:51:32
File owner: elise, last modified: 1 Apr (less than 1yr ago)
Map extent:
-812443W.957172E
-2319505S---2319505S
-3887336S...-3887336S
-812443W.957172E

Projection information (see end of this page for details)
Projection ALBERS latitude of projection's origin 0 0 0.000
Units METERS Spheroid CLARKE1880

Scale
1000000
Date
1990
Description
Evaporation (mean annual) of South Africa (WR90 file eip.e00)
Owner
Water Research Commission
Owner_address
Water Research Commission
PO Box 824
PRETORIA
0001
Owner_contact
Hugo Maaren
Owner_country
South Africa
Owner_phone
(012) 330 0340
Owner_fax
(012)
Owner_email
hugo@wrc.ccwr.ac.za
Disclaimer
No responsibility for the accuracy of the data is accepted.
Copyright_message
Raw data from a variety of State and private sources, including
the South African Weather Bureau, the Department of Agriculture and Water
Supply, the South African Sugar Association, organised agriculture and
individuals.
Copyright_warning
Data products may only be used for water research.
History 


1996 - Water Research Commission report number 298/1/94

       (DC Midgley, WV Pitman & BJ Middleton, Surface Water Resources of

        South Africa 1990 - User's Manual - ISBN 1 86845 143 7)

1996 - EVAPCODE field added (1 to 11 with increasing evaporation)

       - Mike Silberbauer.

  Logo
$WMSYS/ptool/template/wrc_logo

Annotation items, 8kbyte:
12 Dec 1996, elise:
Arc items, 6kbyte:
12 Dec 1996, elise:
8 data fields
ITEMEXAMPLESWIDTHTYPEREDEFINED?INDEXED?
FNODE#14.0 binary
TNODE#24.0 binary
LPOLY#14.0 binary
RPOLY#24.0 binary
LENGTH46292.3281254.3 floatpnt
MAV_WR90#14.0 binary
MAV_WR90-ID14004.0 binary
MAE14005.0 integer

Polygon items, 2kbyte:
13 Dec 1996, elise:
8 data fields
ITEMEXAMPLESWIDTHTYPEREDEFINED?INDEXED?
AREA92005652484.3 floatpnt
PERIMETER70366084.3 floatpnt
MAV_WR90#14.0 binary
MAV_WR90-ID844.0 binary
COLOR843.0 integer
RANGE'2000-2200 mm'20 character
EVAPCODE94.0 binary
CODE93.0 integer (Indexed)

Map specifications: 
 Description of SINGLE precision coverage /spek/waterm/wmdata/general/mav_wr90

                                FEATURE CLASSES

                                    Number of  Attribute     Spatial
Feature Class          Subclass     Features   data (bytes)  Index?   Topology?
-------------          --------     ---------  ------------  -------  ---------
ARCS                                      180        34
POLYGONS                                   43        46      Yes      Yes
NODES                                     149
ANNOTATIONS             (blank)            47

                               SECONDARY FEATURES

Tics                                     4150
Arc Segments                            33609
Polygon Labels                             42

                                   TOLERANCES

Fuzzy   =                 1.008 V          Dangle  =                 1.008 N

                               COVERAGE BOUNDARY

Xmin =              -732005.938            Xmax =               876734.812
Ymin =             -3806899.250            Ymax =             -2399942.500

                                     STATUS

The coverage has not been Edited since the last BUILD or CLEAN.

                          COORDINATE SYSTEM DESCRIPTION

Projection               ALBERS
Units                    METERS             Spheroid             CLARKE1880
Parameters:
1st standard parallel                                  -18  0  0.000
2nd standard parallel                                  -32  0  0.000
central meridian                                        24  0  0.000
latitude of projection's origin                          0  0  0.000
false easting (meters)                                       0.00000
false northing (meters)                                      0.00000