The area where the search is taking place is called the Indian Ocean Gyre. There is little to no current in the area and it's notorious for trapping debris. Basically it's a big “garbage patch." http://cnnworldlive.cnn.com/Even ... p_t1&hpt=ias_c1
New Scientist reported that, prior to the aircraft's disappearance, two ACARS reports had been automatically issued to engine manufacturer Rolls-Royce's monitoring centre in the United Kingdom;[24] 请看以下的 [24]
and The Wall Street Journal, citing sources in the US government, asserted that Rolls-Royce had received an aircraft health report every thirty minutes for five hours, implying that the aircraft had remained aloft for four hours after its transponder went offline.[25]
The following day, the acting Transport Minister of Malaysia announced that the details of The Wall Street Journal report were inaccurate, stating that the final engine transmission was received at 01:07, prior to the flight's disappearance from secondary radar.[25]
Follow-up reporting by Reuters suggested that a cessation of engine reports did not necessarily mean there was no evidence of continued flight; the evidence may have taken the form of "pings" sent by the aircraft's communication systems. These merely indicated to the satellites that the aircraft was ready to communicate, although these transmissions were not telemetry reports.[26] 请看以下的 [26]
The Wall Street Journal later removed references to Rolls-Royce from its report and stated that the belief of continued flight was "based on analysis of signals sent by the Boeing 777's satellite-communication link... the link operated in a kind of standby mode and sought to establish contact with a satellite or satellites. These transmissions did not include data..."[10][11]
On 13 March, the White House Press Secretary said "an additional search area may be opened in the Indian Ocean based on some new information"[27] and a senior official at The Pentagon told ABC News: "We have an indication the plane went down in the Indian Ocean."[28]
Inmarsat said that "routine, automated signals were registered" on its network,[29] although a company executive did add that "keep-alive message" continued to be sent after air traffic control first lost contact and that these "ping signals" could be analysed to help estimate the aircraft's location.[30] 请看以下的 [30]
On 14 March, The Independent rebutted earlier versions from other media about mid-flight disintegration, stating that if the aircraft had disintegrated in mid-flight or had other sudden catastrophic occurrence, "all signals – the pings to the satellite, the data messages and the transponder – would be expected to stop at the same time".[31]
A call for transponders to be automated and not arbitrarily controlled by humans gained momentum after the September 11 attacks in 2001, when three of the hijacked aircraft had their transponders switched off.[32] However, no changes were made as aviation experts opted for a flexible control, believing that transponders may need to be reset in case of a malfunction or an electrical emergency.[32]
Inmarsat Senior Vice President Chris McLaughlin said that on Monday, March 10, it began extrapolating the location of the jetliner using the aircraft's changing angle and distance to the satellite, which orbits more than 22,000 miles above a point in the Indian Ocean.
Mr. McLaughlin said the data was shared the following day with SITA, which in turn shared it with Malaysian officials.
At that point, the search was still focused primarily in waters east of the Malay Peninsula, and Malaysian officials hadn't confirmed reports that Flight 370 had altered its course to Beijing about an hour after takeoff to fly west across the peninsula.
Inmarsat's package showed not only that the plane had continued flying for hours, but that it had made an even more radical course change later, ending up along one of two possible corridors, one heading northwest toward Kazakhstan and the other curving far south over the Indian Ocean.
The Inmarsat package, which included a map of the twin north and south corridors, together with readouts of data from a communication satellite, demonstrated the need for a dramatic shift in search areas, according to people briefed on the investigation.
“獨狼”恐怖行动 vs “凸烂”救援指挥 本帖最后由 50912cmea 于 21-3-2014 06:48 AM 编辑
12号Wall Street Journal的最先的报道是“飞机引擎信息”最后联系（ACARS吧？）在失联后几个小时还运作，同一天(大马时间13号星期四）Hisam就回应:"this report is inaccurate"，ACARS最后讯号的时间其实是1.07。
13号wall street journal纠正报道讲说最后讯号其是satellite ping, （大马时间14号星期五）Hisam回应：”wont release any information to the public until it has been verrified" 。但同时，美国开始展开南印度洋的搜救。
Wall Street Journal一早就收到真料，可是报料人又没有讲清楚。所以星期四的Hisham就给你来一个一个顺水推舟（“我没有骗你啊，ACARS last transmission是1.07啊”），保持一贯政策："我们没有调查完毕，我一个屁都不会跟你讲”
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发表于 20-3-2014 11:05 PM
），保持一贯政策："我们没有调查完毕，我一个屁都不会跟你讲”
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