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About Module

Welcome to Land Survey Module

Module Overview

This e-module is designed to assist both patwaris (land revenue officials) in understanding land surveying, digitizing paper maps, and geo-referencing using QGIS (Quantum Geographic Information System). By the end of this module, learners will be able to effectively manage and digitize land records, ensuring accessible land information.

Learning Objectives

Upon completion of this module, learners will be able to:

Comprehend the fundamentals of land surveying.

Learning about the SOI's CORS Network.

Understanding step by step methodologies for land survey.

1. Introduction to Land Surveying

Land surveying is the process of measuring and mapping land to establish boundaries and create accurate land records. It helps determine land ownership, resolve disputes, and guide land development.

Key Concepts:

Boundary Measurement: Identifying and marking the boundaries of land parcels.

Triangulation: A method of locating points by forming triangles with known points.

Topographic Maps: Geo-reference digitized maps using QGIS.

Tools Used in Land Surveying:

Total Station: Accurately measures distances and angles.

Theodolite: Measures horizontal and vertical angles.

GPS: Provides precise location coordinates.

2. Survey of India's CORS Service

Survey of India's CORS service which helps to generate high accuracy and precise points using rovers and NRTK system.

Key Features and Services of CORS:

Real Time Positioning Services

Reference Data Services

CORS Station Distribution Map for all CoE States

3. Field Survey Steps - An Overview

An overview of the field survey salient instructions and a simple step by step description of the methodologies used for field surveying using an urban city survey scenario case studies.

Field Survey of Land Parcel - Basics:

Key Steps in a Land Parcel Survey

Tools Used for Land Survey

Understanding GNSS Receivers (GNSS Rovers)

Real-Time Kinematic (RTK) GPS – High-Precision Positioning

Electronic Total Station (ETS) with GNSS – Advanced Surveying Technology

Field Data Collector (FDC) with WebGIS for Field Survey

Distance-Distance Measurement using a Laser Range Finder

Reference Stations – Correcting GPS/GNSS Errors

Field survey - Methodologies and Salient Instructions

Surveying Properties in a City – Simplified Steps

Field Survey: Salient Instructions

Field Survey Methodologies

Launch E-Module
Instructors

Expert Instructors

CoE - BNYCRS
LBSNAA - Mussoorie
DILRMP
NIC - New Delhi