Wikipedia

Ndepụta ụkọ mmiri ozuzo nke Keetchī Biram

Nkọwa ụkọ mmiri ozuzo nke KeetchīByram (nke a maara dị ka KBDI), nke John Keetch na George Byram mepụtara n'afọ 1968 màkà Ngalaba Ọrụ Ugbo nke United States, bụ ihe atụ nke ọnọdụ ụkọ mmiri. A na-ejikarị ya eme ihe màkà ebumnuche nke ịkọ ọdịnihu na ịdị njọ nkè ọkụ ọhịa. A na-agbakọ ya dabere na mmiri ozuzo, okpomọkụ ikuku, na ihe ndị ọzọ na-emetụta ihu igwe.[1]

KBDI bụ atụmatụ nke ụkọ mmiri nke ala, nke bụ mmiri dị mkpà iji mee ka mmiri nke ala ruo ikike ya zuru oke. Nnukwu ụkọ mmiri dị n'ala pụtara na e nwèrè obere mmiri màkà evaporation ma ọ bụ ọsụsọ osisi.[2] Nkè a na-eme n'ọnọdụ nke oke ọkọchị, ma nwee mmetụta dị ukwuu na omume ọkụ.

Na United States, a na-egosipụta ya dị ka ihe dị iche site na efu ruo narị asatọ, na-ezo aka na otu narị nke sentimita nke ụkọ mmiri; na mba ndị na-eji usoro metric, a na'egosipụta ya site na 0 gaa na narị abụọ, na-ezo áhà milimita.[3]

Ọnụ ọgụgụ ndepụta (otu narị sentimita) Ọnụ ọgụgụ ndepụta (millimeters) Mmetụta ya[3][4]
0200 50 na-adị Ala dị mmiri. 0 na-anọchite anya ala jupụtara kpamkpam.[5]
200 na 400 50 na 100 Akụkụ akwụkwọ na-amalite ịcha.
400600 100 na 150 Ihe mkpofu dị ala na-enye aka n'ike ọkụ ma na-ere ọkụ nke ọma.
600 800 150 na 200 A na-ejikọta ya na oke ọkọchị na oke ọkụ.

Hụkwa

dezie
  • Usoro Ntụziaka Ihe Iche Ọkụ Mba
  • Nkọwa nke ụkọ mmiri ozuzo Palmer
  • McArthur Forest Fire Danger Index
  • 1988 revision nke akwụkwọ ahụ, "A drought index for forest fire control. http://www.srs.fs.fed.us/pubs/rp/rp_se273.pdf

Edensibia

dezie
  1. ↑ Keetch, John J. (1968). "A Drought Index for Forest Fire Control". Res. Pap. Se-38. Asheville, Nc: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 35 P 038. Retrieved on August 11, 2016. 
  2. ↑ Finkele (September 2006). "National gridded drought factors and comparison of two soil moisture deficit formulations used in prediction of Forest Fire Danger Index in Australia". Australian Meteorological Magazine 55 (3): 183–197. 
  3. ↑ 3.0 3.1 Weather and Bushfire Behaviour. NSW Rural Fire Service. Retrieved on 20 March 2018. Kpọpụta njehie: Invalid <ref> tag; name "behaviour" defined multiple times with different content
  4. ↑ Keetch-Byram Drought Index.
  5. ↑ Real-time Drought Assessment System of Texas A&M Forest Service. Retrieved on 20 April 2022.
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