Bulk Richardson number

Ọnụ ọgụgụ Bulk Richardson (BRN) bụ ihe atụ nkè ọnụọgụ Gradient Richardson.^[1] BRN bụ ọnụọgụ na-enweghị akụkụ na ihu igwe metụtara oriri nkè turbulence nké kewara site na mmepụta shear (ọgbọ nkè turbulance kinetic energy kpatara site na ikuku shear) nké turbulency. A na-eji ya egosi nkwụsi ike na mmepụta nke ọgba aghara.

A na-eji BRN eme ihe ugboro ugboro na meteorology n'ihi data rawinsonde (nkè a na-akpọkarị radiosonde) na amụma ihu igwe nké na-enye ikuku na okpomọkụ n'ébé dị íchè íchè na mbara igwe.^[2]

Nkọwa

N'okpuru ébé a bụ usoro màkà BRN. Ébé g bụ ọsọ ọsọ, Tv bụ oke okpomọkụ, Δθv bụ ọdịiche dị n'etiti okpomọkụ dị n'ofe ọkpụrụkpụ Δz (omimi kwụ ọtọ), na ΔU na ΔV bụ mgbanwe na ihe ndị dị n'akụkụ ikuku gafee otu okpomọkụ ahụ.

R_{B}={\frac {(g/T_{v})\Delta \theta _{v}\Delta z}{(\Delta U)^{2}+(\Delta V)^{2}}}

Ụkpụrụ nkatọ na nkọwa

Ọnụ ọgụgụ dị elu na-egosi ébé ndị na-adịghị akwụsi ike na / ma ọ bụ ebe ndị na'adịghị ike; ọnụ ọgụgụ dị ala na-egosi enweghị ike na / ọ bụ ike ịkpụcha. N'ozuzu, ụkpụrụ dị n'agbata irí nakwa irí ise na-atụ aro ọnọdụ gbụrụ-gbúrụ ébé obibi dị mmá màkà mmepe supercell.^[3]

Na njedebe nkè ọkpụrụkpụ nké na-aghọ obere, ọnụọgụ Bulk Richardson na-eru nso ọnụọgụ Gradient Richardson, nkè ọnụọgụ Richardson dị oké égwu bụ ihe dịka Ric= 0.25. Ọnụ ọgụgụ ndị na-erughị uru a dị oke egwu anaghị akwụsi ike ma nwee ike ịghọ ma ọ bụ nọgide na-agbagwoju anya.

Ọnụ ọgụgụ dị oke egwu nkè 0.25 na-emetụta naanị maka gradients mpaghara, ọ bụghị màkà ọdịiche dị ichè íchè gafee nnukwu ọkwa. Ka ọ na-esiwanye ike, o yikarịrị ka anyị ga-emezi nnukwu gradients na-eme n'ime obere mpaghara nke ihe na-adọrọ mmasị. Nke a na-eme ka ejighị n'aka banyéré amụma anyị banyéré ihe na-eme, ma ugbu a, mmadụ ga-eji uru buru ibu nke ọnụ ọgụgụ Richardson dị oke egwu iji nye nsonaazụ ezi uche dị na ya site na iji gradients anyị dị nro. Nke a pụtara na ka ọ na-adịkwu arọ, otú ahụ ka uru ahụ na-eru nso na echiche ahụ.^[1]

Hụkwa

Ogologo oge nke Monin Obukhov
Nọmba Richardson
Mgbanwe nke ikuku
Okpomọkụ nke ikuku

Ihe odide

↑ ^1.0 ^1.1 Bulk richardson number. AMS Glossary. American Meteorological Society. Retrieved on 2015-12-29.
↑ Stull (31 July 1988). An Introduction to Boundary Layer Meteorology. 101 Philip Drive, Norwell, MA 02061, USA: Kluwer Academic Publishers, 177–180. ISBN 978-90-277-2769-5.
↑ Glossary (EN-US). NOAA National Weather Service. Archived from the original on 2018-05-28. Retrieved on 2015-12-29.

Ịgụ ihe ọzọ

Enyemaka - Ọnụ ọgụgụ buru ibu Richardson - NOAA Storm Prediction Center
Thompson (December 2003). "Close Proximity Soundings within Supercell Environments Obtained from the Rapid Update Cycle". Weather and Forecasting 18 (6): 1243–1261. DOI:<1243:CPSWSE>2.0.CO;2 10.1175/1520-0434(2003)018<1243:CPSWSE>2.0.CO;2.

[ams_glossary-1] 1.0 ^1.1 Bulk richardson number. AMS Glossary. American Meteorological Society. Retrieved on 2015-12-29.

[:0-2] Stull (31 July 1988). An Introduction to Boundary Layer Meteorology. 101 Philip Drive, Norwell, MA 02061, USA: Kluwer Academic Publishers, 177–180. ISBN 978-90-277-2769-5.

[3] Glossary (EN-US). NOAA National Weather Service. Archived from the original on 2018-05-28. Retrieved on 2015-12-29.

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