Mene ne harafi na biyu a "MBH99" yake nufi? Bisa ga tambayar da ta gabata, ka rubuta mahallin da ke ɗauke da amsar. Zai iya zama jumla 1 - 20. Abubuwan da ke ciki:
Rahoton kimantawa na uku (TAR) ya nuna wani zane mai suna "Millennial Northern Hemisphere temperature reconstruction" bisa ga takarda na 1999 da Michael E. Mann, Raymond S. Bradley da Malcolm K. Hughes (MBH99), wanda aka kira shi "zane-zane na wasan hockey". Wannan jadawalin ya fadada kwatankwacin jadawalin da ke cikin Hoto na 3.20 daga Rahoton Bincike na Biyu na IPCC na 1995, kuma ya bambanta da tsarin a cikin rahoton kimantawa na farko wanda ya rasa raka'o'in zafin jiki, amma ya bayyana yana nuna bambancin yanayin zafin duniya mafi girma a cikin shekaru 1000 da suka gabata, da kuma yanayin zafi mafi girma a lokacin Zamanin Warm na Tsakiya fiye da tsakiyar karni na 20. Tsarin ba ainihin zane ne na bayanai ba, kuma ya dogara ne akan zane-zane na yanayin zafi a tsakiyar Ingila, tare da yanayin zafi ya karu bisa ga shaidar takaddun shaida na gonakin inabi na zamani a Ingila. Duk da wannan ƙaruwar, matsakaicin da ya nuna na Lokacin Warmwarma na Zamanin Zamani bai kai yawan zafin da aka rubuta a tsakiyar Ingila a shekara ta 2007 ba. MBH99 binciken da aka samu ya goyi bayan maimaitawa da Jones et al. 1998, Pollack, Huang & Shen 1998, Crowley & Lowery 2000 da Briffa 2000, ta amfani da bayanai da hanyoyi daban-daban. Jones et al. da kuma Briffa sake ginawa an rufe su tare da sake gina MBH99 a Figure 2.21 na rahoton IPCC.