Sagar Sampark is an indigenously developed Differential Global Navigation Satellite System (DGNSS). This enhancement system is specifically designed to correct errors and inaccuracies in the Global Navigation Satellite System (GNSS). It provides more precise positioning data crucial for various applications, especially in maritime navigation.
GNSS is a space-based positioning, navigation, and time distribution system. It consists of a constellation of satellites that transmit positioning and timing information globally. GNSS receivers utilize this data to determine precise locations, making it essential for navigation across various fields.
The primary goal of DGNSS is to enhance the accuracy of GNSS by delivering real-time corrections and integrity monitoring. It employs reference stations at known locations to provide corrections for GNSS signals, thereby significantly improving shore-to-ship services.
Sagar Sampark-DGNSS plays a vital role in reducing the risk of collisions, groundings, and accidents in port and harbor areas. By providing mariners with accurate navigation information, it facilitates safe and efficient vessel movement, ensuring compliance with international obligations from organizations like the IMO, SOLAS, and IALA.
DGNSS markedly improves GPS positioning accuracy, mitigating errors caused by atmospheric interferences, satellite clock drift, and other issues. The error correction capability with DGNSS enhances accuracy from 5-10 meters to less than 5 meters within 100 Nautical Miles of the Indian coastline.
The DGLL is tasked with establishing and maintaining Aids to Marine Navigation along India's coastline. Operating under the Marine Aids to Navigation Act, 2021, it replaces the Lighthouse Act of 1927 and provides essential General Aids to Marine Navigation.
IALA is an organization that unites various entities responsible for Aids to Marine Navigation. Based in France, it promotes the enhancement of marine navigation aids and fosters cooperation among member countries to develop navigational systems that improve maritime safety. The DGLL represents India within IALA.
Sagar Sampark signifies a major advancement in marine navigation technology. By enhancing GPS positioning accuracy and reducing navigational errors, it is crucial for ensuring the safety and efficiency of maritime operations around the Indian coastline. This initiative aligns with international standards and bolsters India's capabilities in the global maritime sector.
Q1. What is the main function of Sagar Sampark?
Answer: Sagar Sampark functions as a Differential Global Navigation Satellite System (DGNSS) that enhances positional accuracy for maritime navigation, reducing errors in GPS data.
Q2. How does DGNSS improve GPS accuracy?
Answer: DGNSS improves GPS accuracy by providing real-time corrections from reference stations, reducing positioning errors significantly to less than 5 meters near the Indian coastline.
Q3. What organization represents India in IALA?
Answer: The Directorate General of Lighthouses and Lightships (DGLL) represents India within the International Association of Marine Aids to Navigation and Lighthouse Authorities (IALA).
Q4. What legislation governs DGLL's operations?
Answer: The DGLL operates under the Marine Aids to Navigation Act, 2021, which replaced the previous Lighthouse Act of 1927, ensuring modern standards for marine navigation aids.
Q5. Why is Sagar Sampark significant for maritime safety?
Answer: Sagar Sampark enhances maritime safety by providing accurate navigation data, which minimizes the risks of accidents and supports efficient vessel movements in harbors and ports.
Question 1: What does Sagar Sampark aim to improve in maritime navigation?
A) Standard GNSS accuracy
B) DGNSS signal strength
C) GPS positioning accuracy
D) Satellite orbit stability
Correct Answer: C
Question 2: Which organization is responsible for Aids to Marine Navigation in India?
A) IALA
B) DGLL
C) IMO
D) SOLAS
Correct Answer: B
Question 3: What is the error reduction capability of DGNSS near the Indian coastline?
A) 10 meters
B) 5 meters
C) 2 meters
D) 15 meters
Correct Answer: B
Question 4: What act governs the operations of the DGLL?
A) Lighthouse Act, 1927
B) Marine Aids to Navigation Act, 2021
C) Navigation Safety Act, 2019
D) Coastal Management Act, 2020
Correct Answer: B
Question 5: What international organization works to enhance marine navigation aids?
A) IALA
B) DGLL
C) SOLAS
D) IMO
Correct Answer: A
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