Joint Surveillance System

Joint Surveillance System
Name	Joint Surveillance System
Caption	Example radar site associated with the program
Established	1980s
Country	United States
Branch	United States Air Force, Federal Aviation Administration
Role	Aerospace surveillance, air defense
Garrison	Continental United States regional centers
Motto	Vigilance and Warning

Joint Surveillance System The Joint Surveillance System is a North American aerospace surveillance network operated by the United States Air Force and the Federal Aviation Administration to provide airborne radar coverage, command and control, and air sovereignty. It links regional control centers, long-range radar arrays, and data processing facilities to support North American Aerospace Defense Command missions, civil air traffic services, and tactical warning. The system evolved from Cold War-era programs and continues to interface with continental and allied air defense architectures.

History

The program traces roots to the Cold War era initiatives such as the Permanent System, the SAGE (Semi-Automatic Ground Environment) network, and the post-war expansion of Air Defense Command. In the 1970s and 1980s, modernization efforts involving the FAA and the United States Air Force produced coordinated upgrades that culminated in the Joint Surveillance System. Early milestones include integration with NORAD data centers and replacement of legacy radars like the AN/FPS-20 with solid-state systems. The program intersected with strategic programs including the DEW Line, the Pinetree Line, and the ROCC (Regional Operations Control Center) concept. Policy decisions during administrations such as the Reagan administration accelerated modernization through procurement and interagency agreements. Internationally, cooperation with Canada and programs like the North Warning System shaped continental surveillance posture. Subsequent reorganizations paralleled changes at Air Combat Command and within regional FAA sectors.

Organization and Structure

The architecture involves a dual-hatted command relationship between the United States Air Force and the Federal Aviation Administration, coordinated with North American Aerospace Defense Command and regional military commands. Operational control flows through sectorized air defense regions that correspond to historical Air Defense Sectors and current regional centers. Key organizational elements include radar squadrons formerly under the Aerospace Defense Command, FAA radar approach control facilities such as ARTCCs, and military units at Air National Guard wings that host data links. Support functions draw on the Defense Information Systems Agency for communications and the National Guard Bureau for domestic coordination. Contracting and procurement have involved defense industry firms with ties to programs like the E-3 Sentry and avionics suppliers.

Radar and Sensor Components

Hardware includes long-range search radars, height-finder radars, and height-finder replacement systems derived from legacy models such as the AN/FPS-117 and the AN/FPS-124. Mobile and gap-filler radars complement fixed sites built on properties formerly used by systems like the Lashup Radar Network. The sensor suite integrates secondary surveillance radar, Identification Friend or Foe transponders compatible with Mode S systems, and multilateration feeds similar to systems developed for ICAO standards. Data links employ standards comparable to Link 16 and connect to airborne platforms such as the E-3 Sentry AWACS and coastal radar installations similar to those used by the United States Coast Guard. Environmental and terrain considerations have led to siting near installations like Mount Bigelow and Cavalier Air Force Station-type locations.

Operations and Procedures

Operational procedures align with doctrine promulgated by organizations including NORAD and the Joint Chiefs of Staff, and incorporate protocols from the FAA for air traffic coordination. Detection-to-intercept timelines mirror contingency plans used during historical events like the September 11 attacks, and routine air sovereignty alerts have employed scramble procedures used by Air National Guard interceptor units. Command and control uses automated track correlation, voice and data reporting, and coordination with civilian ARTCCs such as Denver ARTCC and New York ARTCC. Exercises and evaluations reference scenarios used in multinational drills like NORAD CONOPs rehearsals and joint training with Royal Canadian Air Force partners. Incident response leverages liaison channels with Federal Emergency Management Agency during domestic contingencies.

Integration with NORAD and Allied Systems

The system is tightly integrated with North American Aerospace Defense Command for continental defense and with allied networks in Canada and select NATO partners for broader situational awareness. Data sharing and interoperability standards align with the North Warning System and with air command architectures of NATO members such as the Royal Air Force and Luftwaffe through secure gateways. Cooperative identification procedures and track exchange protocols have been harmonized with cross-border agreements like those between the United States and Canada governing aerospace warning. Coalition operations draw on coordination frameworks similar to those used in exercises like Red Flag and Maple Flag.

Notable Incidents and Upgrades

Notable operational incidents include system responses during crises such as the September 11 attacks and false-alarm events paralleling historical entries in air defense records. Upgrades over time incorporated solid-state radar replacements, improved processing exemplified by transitions from legacy SAGE-era consoles to modern command centers, and enhanced data fusion compatible with platforms like the F-22 Raptor and F-35 Lightning II. Modernization efforts have paralleled procurement programs in the Department of Defense modernization portfolio and interoperability initiatives involving the Federal Aviation Administration NextGen program. Cybersecurity and resilience improvements reflect collaboration with agencies such as the Department of Homeland Security and standards used by the National Institute of Standards and Technology.

Category:Air defense networks Category:United States Air Force Category:Federal Aviation Administration