06野牛巅峰 提问

OW 8807Bill 2024-01-06 00:08:50 1399

野牛巅峰大概在09z 但是在06Z的时候TRMM扫出双眼墙

事后NASA甚至也出了一篇文章专门讲解野牛的眼墙https://earthobservatory.nasa.gov/images/17540/super-typhoon-cimaron

请问为什么野牛还能在170 双眼墙不应该会扣一点风速吗?

最新回复 (4)
  • 8807Bill OW 2024-01-06 14:20:10
    0 引用 2

    还是Cimaron和Haiyan同一个例子 双眼墙但雷达支持170kt以上 

  • hhhh DG 2024-01-06 14:41:43
    0 引用 3

    维基引用的来源:

    JTWC's intensity during the time under consideration was based solely
      on the Dvorak ratings by that agency's satellite analyst(s), which were
      T7.0/7.0.   However, AFWA rendered a rating of T7.5/7.5 at 0531, 1131,
      and 1431 UTC on the 29th, noting that constraints were broken due to
      the rapid intensification.  Also, the SAB analysis at 29/0833 UTC was
      T7.5/7.5.   The SAB rating at 29/0233 UTC had been T7.0/7.0, but the
      remarks indicate that the analyst felt very strongly that the system was
      more intense, but held back out of respect for the Dvorak rules.  He
      also noted that the visual Data-T number was T8.0.  In an e-mail, the
      same SAB analyst stated that he could not remember a storm with a 26 C
      eye being maintained for nearly 10 hours (and in GOES imagery at that!)
      while remaining embedded in a CMG (and at times CDG) ring without some
      breakdown.  Also, the JTWC satellite bulletins at 29/0230 and 29/0830
      UTC noted that the AODT numbers were 7.6 and 7.8, respectively.
  • 潜在蜂蜜 MG 2024-01-06 14:48:02
    0 引用 4

    就我非常浅薄的经验回答一下(实际同问)

    Cimaron虽然是巅峰置换,但是是置换的前期,也就是外眼墙初步形成的阶段。这个阶段外眼尚未对内眼造成非常严重的干扰,甚至内眼可以进一步加强(不太典型的例子是doksuri的2颠)。

    这时中心气压可以进一步降低,CDO扩大都是其典型表现,而在VIS上形成置换特征才是置换步入中期的征兆。但是很明显,这个时候还没有。

    风速上是底层优先于高层的,所以风速的双峰特征还是有的。这并不对强度造成多大干扰,因为RMW仍然在内眼处。

    另外雷达是典型的直接测量客观分析工具,有较大参考价值。

    中期确实是风速远高于德法值的。

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  • eoj329 DG 2024-01-17 10:24:34
    0 引用 5

    不同年代的標準都不同,當年的影像,不可同日而語。

    上传的附件:

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