Working Group

NSG 7

Science services

Study period : 2019-2023

“Science services” refer to the standard frequency and time signal, space research (SRS), space operation, Earth exploration-satellite (EESS), meteorological-satellite (MetSat), meteorological aids (MetAids) and radio astronomy (RAS) services.
 

The systems linked with Study Group 7 are used in activities that are a critical part of our everyday life such as:

• global environment monitoring – atmosphere (including greenhouse gases emissions), oceans, land surface, biomass, etc.;

• weather forecasting and climate change monitoring and prediction;

• detection and tracking of many natural and man-made disasters (earthquakes, tsunamis, hurricanes, forest fires, oil leaks, etc);

• providing alerting/warning information;

• damage assessment and planning relief operations.

 

SG 7 also encompasses systems for the study of outer space:

• satellites for studying the sun, the magnetosphere and all the elements ofour solar system;
• spacecraft for human and robotic exploration of extraterrestrial bodies;
• Earth and satellite-based radioastronomy to study the universe and itsphenomena.

 

Study Group 7 develops ITU-R Recommendations, Reports and handbooks that are used for development and ensuring non-interference operation of space operation, space research, Earth-exploration and meteorological systems (including the related use of links in the inter-satellite service), radio astronomy and radar astronomy, dissemination, reception and coordination of standard-frequency and time-signal services (including the application of satellite techniques) on a worldwide basis.

 

Four Working Parties (WPs) carry out studies on Questions assigned to Study Group (SG) 7

• WP 7A: Time signals and frequency standard emissions: Systems and applications (terrestrial and satellite) for dissemination of standard time and frequency signals;
• WP 7B: Space radiocommunication applications: Systems for transmission/reception of telecommand, tracking and telemetry data for space operations, space research, Earth exploration-satellite, andmeteorological satellite services including the related use of links in the inter-satellite service;
• WP 7C: Remote sensing systems: active and passive remote sensing applications in the Earth exploration-satellite service and systems of the MetAids service, as well as ground based passive sensors, spaceweather sensors and space research sensors, including planetary sensors;
• WP 7D Radio astronomy: radio astronomy and radar astronomy sensors, both Earth-based and space-based, including space very long baseline interferometry (VLBI).

Corresponding ITU-R Study Group: NSG 7

• Study Group 7 (SG 7)
• ITU-R Questions - SG 7
• Use of Radio Spectrum for Meteorology: Weather, Water and Climate Monitoring and Prediction
• Handbook on Earth-Exploration Satellite Service
• Handbook on Radio Astronomy
• Handbook on Selection and Use of Precise Frequency and Time Systems
• Handbook on Satellite Time and Frequency Transfer and Dissemination
• Handbook on Space Research Communications
• ITU-R Recommendations
• ITU-R Reports

Management Group

Chairman	Sh. PV Kumaramohan, Associate Director, ISRO kumaramohan@isro.gov.in
Rapporteur	Sh. Amit Gulati, Sr. DWA, WPC amit.gulati@nic.in