THE TOPOGRAPHY SURVEY FORMALABAR BOTANICAL
GARDEN AND INSTITUTE FOR PLANT SCIENCE
(MBGIPS)
Submitted to
MALABAR BOTANICAL GARDEN AND INSTITUE FOR PLANT
SCIENCE, Pokkunnu Kozhikode
KSCSTE-NATIONAL TRANSPORTATION PLANNING AND
RESEARCH CENTRE
(An Institution under Kerala State Council for Science, Technology & Environment)
KSCSTE-NATPAC
SasthraBhavan, Pattom P.O., Thiruvananthapuram - 695 004,Kerala, India
Website: www.natpac.kerala.gov.in, E-mail: contactus.natpac@kerala.gov.in
Phone: 0471 – 2548200, 2548209, 2548301 Fax: 0471 – 2543677
ABSTRACT
The topography survey was conducted, for preparing the lay out plan of Malabar
Botanical Garden and Institute for Plant science. Survey was conducted using
advanced survey equipment’s like Differential Global Positioning System (DGPS)
and Total Station.
The DGPS surveys were conducted to set up a permanent Station at the premises from
80.10.2018 to 13.10.2018. After processing the data collected, temporary traverse points were
fixed using DGPS from 13 November 2018 to 15 November 2018. Physical features were
collected using Total Station during 19 November 2018 to 13 November 2018.
Horizontal and Vertical control stations were established using DGPS and the traverse line is
run connecting control stations. If any discrepancy is observed beyond the permissible error of 1
in 10000, the traversing is repeated and new temporary Bench marks are obtained. All the
control stations set up for horizontal control were connected with levels. The closing error was
within the permissible limits of 6 K, where K is distance in km and the error is in mm. The
permissible error was then distributed using length-weighted distribution to get the exact
elevation of a particular benchmark.
Using the horizontal and vertical control points established, accurate data in the digital format
in terms of Northing (Y), Easting (X) and Elevation (Z) co-ordinates for all breaks in terrain such
as ridges and ditches was collected. All natural and manmade features such as buildings, poly
houses, ground levels, plantations, boundary of land etc. were captured during the survey. A
spatial co-ordinate system was followed for referencing all data points. Each data point was
referenced by x, y and z co-ordinates, the first two representing the horizontal locations and the
third elevation.
The Total land area for Malabar Botanical Garden and Institute for Plant
sciences 37.43 acres.
Main GPS station point on the Hill top and eight reference points are established for future
use. Details of the reference points and the permanent GPS station are given in table 1.
Details of the reference points and the permanent GPS station.
Sl No Reference / GPS Point Easting Northing Height(m)
1 GPS 590288.1892 1242939.9429 57.6999
2 RP 1 590276.143 1242988.601 49.507
3 RP 2 590297.737 1242975.521 53.251
4 RP 3 590475.777 1242895.578 45.226
5 RP 4 590454.458 1242902.53 45.74
6 RP 5 590344.519 1242766.768 28.567
7 RP 6 590357.749 1242754.946 25.639
8 RP 7 590297.845 1242642.177 4.526
9 RP 8 590324.399 1242633.746 3.885
Table.1
Location of reference points are given below,
RP 1 - Near the step from hill top to main road
Fig.1- Location of RP 1 in Drawing
Fig.2- Photography of RP1 stone
RP 2 - Near the hill top side
Fig.3- Location of RP 2 in Drawing
Fig.4 - Photography of RP 2 stone
RP 3 – In front of Plot – 5, road edge
Fig.5- Location of RP 3 in Drawing
Fig.6 - Photography of RP 3 stone
RP 4 – Near to the Plot – 5, opposite of RP 3
Fig.7 - Location of RP 3 in Drawing
Fig.8 - Photography of RP 4 stone
RP 5 – Near to the Seminar Hall, road side
Fig.9 - Location of RP 5 in Drawing
Fig.10 - Photography of RP 4 stone
RP 6 – Near to the Seminar Hall, opposite of RP 5
Fig.11 - Location of RP 6in Drawing
Fig.12 - Photography of RP 6 stone
RP 7 – Opposite of Aqua gene 2 , near to the office building
Fig.13 - Location of RP 7 in Drawing
Fig.14 - Photography of RP 7 stone
RP 8 – Opposite of RP 7 , near to the office building
Fig.15 - Location of RP 8 in Drawing
Fig.1 6- Photography of RP 8 stone
The detailed drawing for Malabar Botanical Garden and Institute for Plant sciences
are given below
