Bomb damage assessment
Bomb damage assessment (BDA), also known as battle damage assessment, is the practice of assessing damage inflicted on a target from a stand-off weapon, most typically a bomb or air launched missile. It is part of the larger discipline of combat assessment. Assessment is performed using many techniques including footage from in-weapon cameras, gun cameras, forces on the ground near the target, satellite imagery and follow-up visits to the target. Preventing information on battle damage reaching the enemy is a key objective of military censorship.
- 1 History of bomb damage assessment
- 2 Objectives of bomb damage analysis
- 3 The future of bomb damage assessment
- 4 Limitations of bomb damage assessment
- 5 Use of misinformation
- 6 References
History of bomb damage assessment
Originally, BDA was required due to the disconnected nature of aerial bombardment during World War I. It became necessary to send ground forces to an area to determine whether the damage was effective, or to overfly the target again. Either situation was difficult to accomplish safely. Starting with this conflict, specialized equipment has been used specifically for BDA type missions. Originally these were aircraft which were converted fighters or bombers (which in the USAAF were given a new RQ designation). Photographic reconnaissance was used extensively in World War II. From the 1950s onwards satellites became available, as well as high altitude surveillance planes such as the Lockheed U-2 and the Lockheed SR-71.
BDA may be performed using information released accidentally by the enemy. In World War II, United Press International transmitted a report on the damage caused by the Japanese raid on Pearl Harbor including details on the number of damaged warships and shore installations.
In more recent conflicts, special operations forces (SOF) have taken part in BDA, both through physical presence, and conducting overflies with equipment such as the RQ-4 Global Hawk UAV. The Israeli Defence Force includes two teams dedicated to both target designation and BDA.
BDA was used during the two Gulf Wars, both during the conflict and retrospectively. In the opening days of the air campaign of the 1991 Gulf War it was used to assess the damage to key Iraqi installations including its nuclear reactors. At the conclusion of the 2003 invasion of Iraq a joint team from the allied nations (including Britain, the United States and Australia) assessed the damage caused to almost 400 sites across the country to determine the effectiveness of weapon strikes.
Objectives of bomb damage analysis
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The objectives of bomb damage analysis can be broken into four main categories.
Munitions Effectiveness Assessment (MEA)
The determination of the proper function of the bomb or weapon. MEA asks/answers the question of "Did the munition function properly/as designed?"
Physical Damage Assessment (PDA)
The estimate of the quantitative extent of physical damage (through munitions blast, fragmentation, and/or fire damage effects) to a target resulting from the application of military force. This assessment is based upon observed or interpreted damage. Collateral and additional damage is also assessed in this process.
Functional Damage Assessment
The estimates of the effect of military force to degrade/destroy the functional or operational capability of the target to perform its intended mission. It includes the level of success of the force applied relative to the operational objective established against the target. This assessment is inferred based upon all source information and includes an estimation of the time required for recuperation or replacement of the target.
Target Systems Assessment
The broad assessment of the overall impact and effectiveness of the full spectrum of military force applied against the operation of an enemy target system or total combat effectiveness (including significant subdivisions of the system) relative to the operational objectives established.
The future of bomb damage assessment
After the end of hostilities in the 1991 Gulf War, the Battle Damage Assessment Working Group (BDAWG) was formed at the behest of MTIC, the Military Targeting Intelligence Committee. Largely, this group sought to create a standard lexicon of terminology for describing BDA, and to develop an outlook for the future of BDA.
Possible future techniques involve using lasers or particle beams in a manner similar to side scan sonar to map, in three dimensions, the condition of a target.[further explanation needed] Boeing has developed (as of 2002[update]) a system whereby a BDA "sensor" is towed a third of a kilometer behind the munition.[needs update] This system is supposed to be capable of near real-time BDA by directly observing the interaction of the munition with the target.
Limitations of bomb damage assessment
BDA relies on humans to interpret and analyze the data collected from various sources. Despite improvements in the data capture techniques limitations were exposed following the 1991 Gulf War in the assessment process when the data supplied by on-board cameras was not analysed correctly. This flawed analysis resulted in incorrect or incomplete information being given to local commanders on the extent of the damage caused. In particular the analysis did not reliably identify whether a target had been damaged (but remained militarily viable) or was no longer a threat.
Use of misinformation
Information on bomb damage is highly valuable to the enemy and military intelligence and censors will endeavour to conceal, exaggerate or underplay the extent of damage depending on the circumstances. Following the Bluff Cove Air Attacks during the Falklands War, the British military misled the media into exaggerating of the real casualty numbers from less than 50 killed to a range of 400 - 900 killed and wounded. This misinformation is believed to have contributed to the weak resistance faced by the British during the subsequent assault on Port Stanley.
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