Abubuwan da suka faru

Abubuwan da suka faru na Bond sune abubuwan da suka faru a kankara na Arewacin Atlantic waɗanda  ya nemi ya haɗa su da sauye-sauyen yanayi a cikin Holocene. An gano irin waɗannan abubuwan guda takwas. A baya an yi imanin abubuwan da suka faru na Bond suna nuna kusan kusan kusan shekara 1,500, amma yanzu an sanya farkon lokacin bambancin a kusan shekara 1,000.

 na Lamont-Doherty Earth Observatory, a Jami'ar Columbia, shi ne babban marubucin takarda na 1997 wanda ya gabatar da ka'idar sauyin yanayi na shekaru 1470 a cikin Late Pleistocene da Holocene, galibi ya dogara ne akan alamun petrologic na kankara a Arewacin Atlantic.Bond, G.; et al. (2001). "Persistent Solar Influence on North Atlantic Climate During the Holocene". Science. 294 (5549): 2130–2136. Bibcode:2001Sci...294.2130B. doi:10.1126/science.1065680. PMID 11739949. S2CID 38179371. Koyaya, aikin da aka yi kwanan nan a shafin guda ɗaya ya ba da shawarar cewa masu ganowa ba su ba da isasshen tallafi ga shekarun 1,500 na canjin yanayi ba kuma sun ba da shawarar gore rahoton c. 1,500 ± 500-shekara ya kasance kayan tarihi ne na ƙididdiga.Obrochta, Stephen P.; Miyahara, Hiroko; Yokoyama, Yusuke; Crowley, Thomas J. (2012-11-08). "A re-examination of evidence for the North Atlantic "1500-year cycle" at Site 609". Quaternary Science Reviews. 55: 23–33. Bibcode:2012QSRv...55...23O. doi:10.1016/j.quascirev.2012.08.008.

Bugu da ƙari, bayan da aka buga Greenland Ice Core Chronology 2005 (GICC05)  don Arewacin Greenland Ice core Project, ya zama bayyananne cewa Abubuwan da suka faru na Dansgaard-Oeschger ba su nuna irin wannan tsari ba.Obrochta, Stephen P.; Miyahara, Hiroko; Yokoyama, Yusuke; Crowley, Thomas J. (2012-11-08). "A re-examination of evidence for the North Atlantic "1500-year cycle" at Site 609". Quaternary Science Reviews. 55: 23–33. Bibcode:2012QSRv...55...23O. doi:10.1016/j.quascirev.2012.08.008. Abubuwan da suka faru na kankara na Arewacin Atlantic sun faru ne tare da abubuwan da suka faru a matakin tafkin da aka rage a yankin Mid-Atlantic na Amurka,  abubuwan da suka fi rauni [bayyanawa da ake buƙata] abubuwan da suka shafi ruwan sama na Asiya aƙalla shekaru 9,000 da suka gabata   kuma tare da mafi yawan abubuwan da suka gabata a Gabas ta Tsakiya na shekaru 55,000 da suka gabata (dukansu abubuwan Heinrich da Bond  ). 

 Jerin 
Yawancin abubuwan da suka faru na Bond ba su da siginar yanayi; wasu sun dace da lokutan sanyaya, amma wasu sun dace tare da bushewa a wasu yankuna. Rashin tsakanin abubuwan da suka faru an kiyasta ya zama shekaru 1,000-1,500, Obrochta, Stephen P.; Miyahara, Hiroko; Yokoyama, Yusuke; Crowley, Thomas J. (2012-11-08). "A re-examination of evidence for the North Atlantic "1500-year cycle" at Site 609". Quaternary Science Reviews. 55: 23–33. Bibcode:2012QSRv...55...23O. doi:10.1016/j.quascirev.2012.08.008. Bond, G.; et al. (2001). "Persistent Solar Influence on North Atlantic Climate During the Holocene". Science. 294 (5549): 2130–2136. Bibcode:2001Sci...294.2130B. doi:10.1126/science.1065680. PMID 11739949. S2CID 38179371. tare da taron Bond # 4 a matsayin bayanan bayanai.

 Tasiri a cikin yanayin yanki 
An gano abubuwan da suka faru a yankuna masu nisa kamar tsakiyar Andes na Kudancin Amurka. Har zuwa sauye-sauye shida na Bond a lokacin Holocene na sama da na tsakiya an gano su a cikin rikodin kankara guda uku na Andes na wurare masu zafi. An cire bayanan daga taron koli na Nevader Sajama, Nevado Huascarán, da Nevado Illimani. Hanyoyin da aka gano sun kasance a shekaru 6400 Kafin Yanzu (BP), shekaru 5500 BP, shekaru 3700 BP, shekaru 2700 BP, shekarun 1300 BP, da shekaru 200 BP kuma suna wakiltar saukowar zafin jiki.

 Dubi kuma 

 Abin da ya faru na Heinrich
 Yanayin kankara

 Manazarta