E ʻimi ka poʻe noiʻi o ke Kulanui o Wakinekona ma mua o 20 mau makahiki o nā kiʻi e ʻike inā ke piʻi nei ka ʻenehana mahiʻai o ka ʻoki ʻana i ʻelua ma ka mokuʻāina.
Ke hoʻohana nei i kahi haʻawina $100,000 mai ka NASA Jet Propulsion Lab's Western Water Applications Office, e hoʻohana nā ʻepekema ʻo Washington State University (WSU) i ke aʻo ʻana i nā mīkini e aʻo ai i nā kiʻi ukali i mea e ʻike ai inā hiki i ka hoʻololi ʻana i ke aniau a me ka wā ulu lōʻihi e ʻae i ka poʻe mahiʻai e ulu i ʻelua mau mea kanu. i hoʻokahi kau ma ke kahua hoʻokahi.
Lawe ka papahana Landsat a NASA i nā kiʻi o ka honua i kēlā me kēia 16 lā. No kēia haʻawina hou, e hoʻohana ʻo Michael Brady, mai WSU's School of Economic Science, a me Kirti Rajagopalan, Department of Biological Systems Engineering, e hoʻohana i nā kiʻi o Wakinekona waena a me hikina e ʻimi ai i nā hōʻailona o ka piʻi ʻana o ka hoʻoulu ʻana pālua. ʻO Mingliang Liu lāua ʻo Claudio Stockle mai WSU lāua ʻo Perry Beale mai ke Keʻena ʻOihana Mahiʻai ma Wakinekona he mau hoa hana. Ke kūkulu ʻia nei kēia hana mai kahi hāʻawi hua mai ka Mokuʻāina ʻo Washington Water Research Center.
"I nā makahiki he 50 i hala iho nei, ua hoʻonui ʻia ka manawa ulu no ka mahiʻai irrigated ma Wakinekona i ʻelua a ʻekolu mau pule," wahi a Brady. "Me ka lōʻihi o ka ulu ʻana, ʻoi aku ka hiki i nā mea kanu ke kanu, ulu, a ʻohi i ʻelua pōʻai o ka makahiki."
ʻO ka hoʻonui ʻana i ka hana e pono ai ka wai nui, kahi i puka mai ai ka manaʻo no kēia haʻawina. Ua makemake ke Keʻena ʻOihana Ecology o Washington State o Columbia River e ʻike inā ʻoi aku ka kaulana o ka ʻai pālua no ka mea e pili ana i ka nui o ka wai i loaʻa no ka mahiʻai.
"ʻOi aku ka nui o ka wai ma mua o ka ulu ʻana a me ka ʻohi ʻana i kahi hua hoʻokahi," wahi a Brady. "Akā, ʻaʻohe ala e ʻike ai i ka nui o nā mea kanu i ʻoki pālua i kēia manawa, e waiho wale i ka nui o ka hoʻonui ʻia."
ʻO ia kahi e komo ai nā kiʻi ukali o NASA. Me ka hoʻohana ʻana i ka mīkini aʻo, e nānā nā mea noiʻi i nā kiʻi o kēlā me kēia māla a ana i ka ʻōmaʻomaʻo o lākou.
Ma ke kiʻi ukali, ʻo kahi mahinaʻai e hoʻomaka ana i ka wā ulu a lilo i ʻōmaʻomaʻo, a laila ʻeleʻele hou, a ukali ʻia e kahi pōʻai hou o ka ulu ʻana o ka ʻōmaʻomaʻo e ʻoki ʻia paha. E hōʻike ana ka mahina ʻai hoʻokahi i hoʻokahi pōʻaiapuni o ka hoʻonui ʻana i ka waihoʻoluʻu ʻōmaʻomaʻo, a ukali ʻia e ka ʻeleʻele a hiki i ke kau aʻe, wahi a Brady.
"ʻAʻohe ala e hiki ai i kahi kanaka, a i ʻole kakini kanaka, ke nānā i kēlā mau kiʻi āpau o kēlā mau kula āpau ma mua o 20 mau makahiki," wahi a Brady. "Akā me ka hoʻohana ʻana i ka mīkini aʻo, hiki iā mākou ke ʻike i ka nui o ka hoʻonui ʻia ʻana o ka ʻai ʻelua i nā mahina ʻelua ma mua o ʻelua mau makahiki."
ʻO ka pahuhopu ka hoʻohana ʻana i nā makahiki he 20 i hala iho nei e wānana i ka piʻi ʻana o ka ʻai pālua i nā makahiki he ʻumi e hiki mai ana. E nānā pū ka poʻe noiʻi i nā ʻikepili like no nā ʻāpana o Kaleponi a me Arizona, ka mea maʻamau i ʻoi aku ka nui o ka ʻai ʻana ma muli o nā kau ulu lōʻihi.
"Ke hoʻomaka nei mākou e loaʻa nā piʻi e like me nā ʻāpana o Kaleponi, ʻike paha mākou i ka neʻe ʻana o ka meaʻai i nā mea i hana ʻia ma ia mau wahi," wahi a Brady.
He hopena nui paha ia i nā kuleana wai no ka poʻe mahiʻai ma ke kahawai ʻo Columbia River Basin. Manaʻo ʻo Brady e kōkua kēia haʻawina i nā mea hoʻoholo e loaʻa nā ʻikepili hou aʻe i hiki iā lākou ke hoʻolālā no ka piʻi ʻana o ka hoʻohana wai.
"ʻO ka ʻoki ʻana ʻelua kekahi ala hiki ke kōkua i ka hoʻopau ʻana i nā hopena o ka hoʻololi ʻana i ke aniau i ka hana ʻana i ka meaʻai," wahi a Brady. "Akā pono mākou e hoʻolālā no ka hoʻohana ʻana i ka wai. He hana mua maikaʻi kēia papahana i ke kaʻina hana. "- Scott Weybright, Ke Kulanui Mokuʻāina ʻo Wakinekona