KHOA HQC, CONG NGHE VA M6| TRUING THOI TIET, THUY VAN VU DONG XUAN
NHAN DINH TiNHHiNH MUA, BAO, LO
N A I V I 2 0 1 1
NGUYfeN VAN HOACH
Song Kinh Thay trude mua mua 10
I. TiNH HJNH THCII TIET THUY VAN VU DONG XUAN
* THOI TIET
Diin bien thdi tiet, thuy van nhung thang dau vu Ddng Xuan ed tinh thit thudng. Thdi ky diu miia Ddng trdi hanh khd it mua.
Thing 11/2010: Thdi ky dau va giua thang vIn cdn xuat hien 2 ap thip nhjet ddi (ATND) d phia Nam Bien Ddng tuy nhien khdng anh hudng gi den thdi tiet BIC Bp.
Thdi ky cudi thang, do ehju anh hudng cua ria phia Tay ap cao lanh lue dja sau dupe tang cudng, ed ngay cd mua, sang sdm cd suong mil nhp, dem va sang trdi ret. Nhiet dp trung binh thang:
2,6°C, cao han eiing ky nam trude
Anh: VIET HOA
(CKNT) 0,4''C, cao hon trung binh nhieu nam (TBNN): 0,5''C.
Thing 12/2010: Thdi ky dau thdi tiet kha dn djnh, trdi khdng mua, sang sdm cd suong mil nhe, trua chieu hung ning. Thdi ky giua va cudi thang, do anh hudng cua ludi ap eao lanh lue dja sau dupe tang cudng ed cudng dp kha manh, trdi nhieu may, ed ngay ed mua, gid kha manh. Tren dja ban tinh Hai Duong cd gid Ddng Bic (NE) giat d p 7,elp 8, trdi chuyen ret, ed ngay ret dam. Nhiet dp trung binh thang: 19,1°C, thip hon CKNT: 0,3°C, cao hon TBNN:
1,4°C. Tdng lupng mua 2 thang diu vu deu thap it hon TBNN.
Thing 01/2011: Ba ngay diu
thdi tiet am ap, td ngay 04 cho den het thang, do chiu anh hudng lien tiep eua eae dot khdng khi lanh, nen nhiet dp ludn d mUe ret dam, ret hai. Ca thang ed 23 ngay ret hai, 04 ngay ret dam va 01 ngay ret eye hai. Nhiet dp trung binh thang la: 12,4''C, thip han eiing ky nam trude (CKNT): 5,3°C, thap hon TBNN: 3,8°C.
Thang 2/2011 : Thdi ky diu va giua thang, tiep tue ehju anh hudng eua khdng khi lanh tang cudng nen nhiet dp d mdc ret dam, cd ngay cd mua, mua nhd, mua phiin, trua chieu cd ngay hung ning. Thdi ky cudi, do khdng khi lanh bien tinh, dp am khdng khi eao, ed nhieu ngay ed mua, mua phiin, sang sdm ed ngay ed suong mil va mil nhe, nen nhiet dp ed xu the tang din ve cud'i thang. Nhiet dp trung binh thang: 17,5°C, thip han CKNT:
2,6°C, eao hon TBNN: 0,4°C.
Lupng mua thang I it hon CKNT va TBNN; thang II nhieu hon CKNT: 3,5mm; it hon TBNN:
12,4mm.
Tinh den het ngay 15/3 toan vu cd 40 ngay ret dam, ret hai, trong dd ed 14 ngay ret dam, 25 ngay ret hai va 01 ngay ret eye hai. Nhiet dp thip nhit do dupe tai thanh phd Hai Duong la: 7,0°C, tai Chi Linh la: 6,3°C (ngay 11/01/2011). Nam 2008, nhiet dp thip nhit la: 5,9°C, tdng sd ngay ret dam, ret hai la: 43 ngay, chij yeu la ret dam. Nam nay sd ngay ret hai nhieu hon.
* THUY VAN
Do miia mua lu ke't thuc sdm khdng ed lu Idn nen ngudn nude tren eae sdng duy tri d muc thip, lupng ddng chay ludn thieu hut so vdi TBNN. Ha luu sdng Hdng, sdng Thai Binh myc nude xudng kiet va tuong duong 2009. Tai ( ^
TAP CHi KHOA HOC, CONG NGHE & MOI TRUONG HAI DUONG So 2 4/2011 <(27^
KHOA HQC, CONG NGHE VA MOI TRUONG
C) Xuan Quan, myc nude trung binh eae thang deu thap hon TBNN, td 1m16 - 2m98, ed ngay xudng mdc 2m20, thip hon myc nude thiet ke tdi 1 m34. Sdng Thai Binh tai Pha Lai, myc nude trung binh 2 thang deu thap hon TBNN td 0m20 - 0m61, cac thang cdn lai deu d mdc xip xi TBNN.
II. NHAN DJNH TINH HINH THC(I TIET, THUY VAN
MUA MUA, BAO, LU (tU thang 5 - 1 0 nam 2011).
* KHI TUONG
- Bao va ap thap nhiet ddi (ATND):
sd lupng bao va ATND anh hudng tdi nude ta cd kha nang d mdc nhieu hon TBNN (td 6 - 8 con). Khu vye Hai Duong kha nang ehju anh hudng tu 2 - 3 con bao va ATND. Tap trung vao thang 7, thang 8. Cln de phdng cd bao manh.
- Xu the nhiet:
Nen nhiet dp miia mua, bao, lu nam 2011 d mdc xIp xi va thip hon TBNN mdt it.
Thang 5, thang 6, nhiet dp trung binh d mue xIp xi va nho hon TBNN mpt it. Cae thang chinh vu (thang 7, 8, 9 nhiet dp d mdc tuong duong hoac cao hon
TBNN.
Tu thang 5-7 xult hien mpt dgt ning ndng nhung khdng gay git.
Thdi gian ning ndng tap trung vao thang 5, 6. Nhiet dp eao nhit d muc: 37,0''C - 38,0°C.
- Xu the mua:
Miia mua se den sdm hon TBNN. Do anh hudng cua hien tupng Lanina yeu. Tdng lupng mua toan vu d mdc tuong duong va Idn hon TBNN, dao dpng d mdc: 1.300mm-1.400mm, tap trung vao cac thang diu va cudi mua. c l n de phdng ed mua Idn tren dien rpng gay img ngap cue bd, cu the:
-I- Thang 5, thang 6 lupng mua d mue tuong duong va Idn hon TBNN.
+ Thang 7, thang 8 lupng mua xIp XI hoac it hon TBNN.
+ Thang 9, thang 10 lupng mua d mdc tuong duong hoac nhieu hon TBNN.
* THUY VAN:
-Dp cao dinh lu:
Tren sdng Hdng tai Ha Npi, dinh lu Idn nhit nam d mdc xIp xi bao dpng II: (td 10m50-11m00).
Tren sdng Thai Binh tai Pha Lai, dinh lu Idn nhit nam d mdc cao hon nam 2010 va tuong
duong TBNN tren mdc bao dpng II, dao dpng td: 5m30-5m50.
Tren sdng Lupc tai Ben Trai, dinh lu nam kha nang xIp xi TBNN dat mdc bao dpng III, dao dpng td: 4m40-4m50.
- Anh hudng cua thiiy trieu:
Cae sdng khu vye ha luu nhu sdng Kinh Mdn, sdng Giia, sdng Rang cln de phdng nude dang khi ed anh hudng cua bao ke't hop vdi trieu cudng. Dp cao nude dang dao dpng td: Om60-1m00.
Dae biet can de phdng td hop cua bao manh, lu Idn va trieu cudng vao thang 8, thang 9.
Tinh hinh thdi tiet, thuy van trong mua mua, bao, lu nam 2011 d Hai Duong nhin ehung se c6 nhieu dien bien phdc tap, kho ludng. Do anh hudng cua hien tupng Lanina yeu nen mua se xay ra nhieu hon. Cln de phdng ddng, td, ldc diu miia. Nhung tran mua Idn xay ra vao diu va cudi vu gay img cue bp.
Trong thdi gian tdi, nhieu kha nang gid miia, mua he den sdm vao thdi ky thu hoach lua chiem xuan cln de phdng mua ddng gay thiet hai. Nhiing dcrt ning ndng tap trung vao cudi thang 5, thang 6, thang 7 i
Tmh Hai Dmmg...
(Tiep theo trang 30)
dupe Chu tjch nude trao tang Huan chuong Lao ddng hang Ba, Thii tudng Chinh phii tang Bing khen; dugc Trung uong Hpi Khuyen hpc Viet Nam va Tinh uy, Uy ban nhan dan tinh Hai Duong tang nhieu phin thudng.
De duy tri va nhan rpng cac md hinh khuyen hpe khuyen tai tieu bieu, ngay 23 thang 12 nam 2010, Dai hpi dai bieu Hpi Khuyen
hpc tinh Hai Dupng lin thd III, nhiem ky 2011 - 2015 da bieu quye't thdng qua mpt sd ehi tieu phin dau den nam 2015: So hpi vien khuyen hpe dat 15% dan sd cua tinh; 90% ddng hp cd Ban khuyen hpe va tren 50% hoat dpng tdtj 100% cac trudng trung hpc phd thdng, chuyen nghiep, dai hpc cd td chdc khuyen hpe va hoat dpng cd hieu qua; 100% co quan, doanh nghiep cd td chyc va hinh thdc hoat dpng khuyen hpc thiet thye; 60% hd gia dinh dupe edng nhan la gia dinh hieu hpc;
50% ddng hp dupe cdng nhan la ddng hp khuyen hpc; xay dyng quy khuyen hpc toan tinh dat binh quan 10.OOOd/ngudi/nam; 100%
can bp chu chdt Hpi Khuyen hpc cac d p dugc tap huin hang nam.
Vdi truyen thdng hieu hpc ciia ngudi Hai Duong, sy quan tam ciJa d p uy Dang, chinh quyen va sy phdi hpp cua cac doan the trong cdng tac khuyen hpc, khuyen tai, chic chin tinh Hai Dupng se tiep tuc ddng gdp nhieu ngudi hien tai cho dat n u d d
28 > TAP CHi KHOA HOC, CONG NGHE & MOI TRUONG HAI DUONG So 2 * 4/2011
