Mr. Sumiya Altangerel

Participant

Contents

• COUNTRY BACKGROUND

• CURRENT STATUS OF MONGOLIAN

REAL-TIME GNSS NETWORK

• CHALLENGES

• ENHANCEMENT IDEA of REAL-TIME

GNSS NETWORK

COUNTRY BACKGROUND • CLIMATE:

• Highest in summer

+30oC

• Lowest in winter -45oC

GEOGRAPHY

Location: East Asia,

between Russia and China

Area: 1`565`000 sq.km

Capital: Ulaanbaatar city

Total land boundaries: 8161.9km

Elevation extremes:

lowest point 518 m, Highest point

4374 m, average 1500 m from

the sea level

Steppe : 41.3%;

Gobi dessert : 17.3%

Forest : 11.4%;

Irrigated land: 800 sq.km;

DEMOGRAPHY

Population: 3 million

Density: 1.6 sq. km

COUNTRY BACKGROUND

COUNTRY BACKGROUND

GOVERNMENT

Parliamentary democracy

(President, Speaker of

Parliament and Prime Minister)

Surveying, mapping and land

administration related activities

are administrated by Mongolian

Implementation Agency,

Administration of land affairs,

geodesy and cartography

(ALAGaC) under the

authorization of Ministry of

Construction and Urban

Development (MCUD).

State Great Khural

Government of

Mongolia

Ministry of

Construction and

urban development

Other ministries

Administration of Land

affairs, geodesy and

cartography

Aimag’s land

departments

Ulaanbaatar Land

Department

9 districts’ land

departments

Private

companies Associations

Other..

Current status of Mongolian Real-time GNSS network

Before 2009:

Coordinate system – WGS84, Local, Pulkova-42

Height system – Baltic sea, Local

Projection – UTM, TM, Gauss-Kriuger /Conic/

problem is how to combine maps into 1 coordinate system?

2009.01.25 government’s order №25 /about to use unified system/.

Coordinate system – WGS84

Height system – Baltic sea

Projection - UTM

Current status of Mongolian Real-time GNSS network

Policy is to make possiblity:

- To enhance mongolian geodetic network using GNSS

- To surveying based on WGS coordinate system

- To establish Real time GNSS network

- To use online Post-processing service

2009

GNSS CORS stations have been established since 2010 in Mongolia.

Trimble Net R8, NETR9 receivers are used.

- 3 locations /2010/

- 6 locations /2011/

- 8 locations /2012/

- 6 locations /2013/

- 17 locations /2014/

Current status of Mongolian Real-time GNSS network

Current status of Mongolian Real-time GNSS network

Distribution of the GNSS CORS station throughout the

country.

Current status of Mongolian Real-time GNSS network

Each CORS stations are connected to Trimble Dynamic Control. Users

could be connected through the following references:

RTN users

IP: 202.21.125.8

Port: 2101

User: Rover

Password:262461

Rinex files

ftp://202.21.125.8

TDC manage page

http://202.21.125.8

Each stations save their observation file as RINEX.

Current status of Mongolian Real-time GNSS network

USERS:

1.Private companies /500/

- RTK, Static

2. Mongolian Science academy / Research center for astronomy and

geophysics/

-Kinematic, Static data

3. ALACaG /local organizations/

- Static data, RTK

Current status of Mongolian Real-time GNSS network

Contribute the own CORS

data for IGS reference

frame.

Australian Land Authority

to contribute 23 CORS

data to the AUSPOS

/Australia/, OPUS /USA/

online processing service

http://www.ga.gov.au

http://www.noaa.gov/

Current status of Mongolian Real-time GNSS network

Legal framework

• Geodesy and Cartography law, 1997

• “GNSS CORS establishing guideline” by the resolution order

139 of Minister of Construction and urban development, 2011

/This work-book consists of types of user’s and government’s

right, data extension, condition to use of CORSs etc./

CHALLENGES

1. Some CORS installed in area without internet connection /2G or higher/

CHALLENGES

2. Distribution of the CORS are coarse /distances are large/.

Example: when area of interest is more than 50km away from CORS and

1:1000 scale mapping are required then CORS cannot be used.

CHALLENGES

3. However, CORS are established every year it is not enough to coverage

in Mongolian territory /state budget/

90000 60000

240000

440000

700000 ?

0

100000

200000

300000

400000

500000

600000

700000

800000

90000 60000 240000 440000 700000 700000

Budget to RTN /by years/

USD

2010 2015... 2011 2012 2013 2014

ENHANCEMENT IDEA REAL-TIME GNSS NETWORK

• Establish more GNSS CORSs throughout the country /increase number of

stations/

• Use a post processing service to process rinex data measurement around

the established GNSS CORS.

From this Course:

- Should to establish GNSS CORS /supported QZSS/ in east side of MGL

- Need a check RTN kinematik data using RTKLib

THANK YOU FOR YOUR KIND

ATTENTION