Mechanism of high rainfall over the Indian west coast region during the monsoon season

2013 ◽  
Vol 43 (5-6) ◽  
pp. 1513-1529 ◽  
Author(s):  
R. S. Maheskumar ◽  
S. G. Narkhedkar ◽  
S. B. Morwal ◽  
B. Padmakumari ◽  
D. R. Kothawale ◽  
...  
Keyword(s):  
West Coast ◽  
Monsoon Season ◽  
High Rainfall ◽  
Coast Region

Assessment of Extremes in Air Temperature Over North-East and West Coast Regions of India

2012 ◽  
Vol 19 (1) ◽  
Author(s):  
Jamir Tondgimenba ◽  
Uday Shankar De ◽  
Gaddam Krishnakumar
Keyword(s):  
West Coast ◽  
Monsoon Season ◽  
Extreme Weather Events ◽  
Maximum Temperature ◽  
North East ◽  
East Region ◽  
Weather Events ◽  
Increasing Trend ◽  
Post Monsoon Season ◽  
Coast Region

AbstractThe projected effect of climate change is the increase of both the frequency and intensity of extreme weather events. An attempt has been made to study the extremes in temperature over two regions of India i.e. North-East Region (NER) and West Coast Region (WCR). A detailed analysis indicated that in the NER, ten stations indicate increase in annual extreme minimum but significant at four stations. Post-monsoon season is very predominant where five stations show significant increase. In the WCR, all the stations indicate increasing trend in annual extreme maximum temperature significant at nine stations. Majority of the stations indicate significant increasing trend in all the seasons except monsoon season.

4. Biologically Important Areas for Selected Cetaceans Within U.S. Waters – West Coast Region

2015 ◽  
Vol 41 (1) ◽  
pp. 39-53 ◽  
Author(s):  
John Calambokidis ◽  
Gretchen H. Steiger ◽  
Corrie Curtice ◽  
Jolie Harrison ◽  
Megan C. Ferguson ◽  
...  
Keyword(s):  
West Coast ◽  
Coast Region

PASTURE SEED MIXTURE FOR HIGH RAINFALL DISTRICTS

1937 ◽  
pp. 71-78
Author(s):  
A. Stuart
Keyword(s):  
West Coast ◽  
The South ◽  
The West ◽  
High Rainfall ◽  
The North ◽  
Seed Mixture ◽  
Rainfall Map

In dealing with this subject it is essential to define the high rainfall districts, and on, perusing a rainfall map it was found, contrary to expectations, that the greater part of the North Island, as represented by the Auckland Province and Taranaki, has a rainfall of over 50 inches per annum. In the same category falls the West Coast of the South Island and all of Stewart Island.

LUCERNE IN THE WELLINGTON, TARANAKI, AND EAST COAST DISTRICTS

1936 ◽  
pp. 92-95
Author(s):  
A.G. Elliott ◽  
T.W. Lonsdale
Keyword(s):  
New Zealand ◽  
West Coast ◽  
East Coast ◽  
General Trend ◽  
Present Position ◽  
Department Of Agriculture ◽  
Forage Crop ◽  
High Rainfall ◽  
The North ◽  
Subsequent Discussion

IN two papers read by officers of the Department of Agriculture at the 1936 conference of the New Zealand Grassland Association, the growing of lucernc as a forage crop in districts of relatively high rainfall was dealt with. The area covered by the papers included the Manawatu and west coast from Paraparaumu to the Patea River(I) and Taranaki(n). During the subsequent discussion on these and other papers the present position and general trend in regard to lucernegrowing in the Wairarapa, Eiawke's Eay, and Poverty Bay districts were also touched on. It is the intention here. to review briefly some of the more important points in regard to the cultivation of lucerne in the southern portion of the North Island as discussed at the conference.

scholarly journals Prevalence of sexually transmitted infections among pregnant women attending antenatal clinics in West Coast Region of The Gambia

2021 ◽  
Vol 21 (2) ◽  
pp. 585-592
Author(s):  
Alphonsus Isara ◽  
Aru-Kumba Baldeh
Keyword(s):  
Pregnant Women ◽  
Sexually Transmitted Infections ◽  
West Coast ◽  
Trichomonas Vaginalis ◽  
The Gambia ◽  
Age Group ◽  
The West ◽  
Sexually Transmitted ◽  
Neisseria Gonorrhoea ◽  
Coast Region

Background: Sexually Transmitted Infections (STI) are the second most common cause of healthy life years lost by women in the 15 – 44 years age group in Africa. Aim/Objective: To determine the prevalence of STIs among pregnant women attending antenatal care (ANC) clinics in the West Coast Region of The Gambia. Materials and Methods: Blood, urine, and high vaginal swabs samples from 280 pregnant women attending ANC in Brika- ma District Hospital, Brikama, and Bandung Maternity and Child Health Hospital, Bandung were examined. Serum samples were tested for HIV using western blot technique and for syphilis using the Venereal Disease Research Laboratory (VDRL) test, and rapid plasma regimen. Candida albicans, Group B Streptococcus and Neisseria gonorrhoea were identified using Analytical Profile Index (API). Direct urine microscopy was used to identify C. albicans and Trichomonas vaginalis while Chlamydia trachomatis was identified using Direct Fluorescent Antibody (DFA) test. Results: The overall prevalence of STIs was 53.6%. The pathogenic agents isolated were Candida albicans (31.8%), Strep- tococcus agalactiae (15.0%), Treponema pallidum (6.8%), HIV (5.7%), Trichomonas vaginalis (3.9%), Neisseria gonorrhoea (1.8%) and Chlamydia trachomatis (0.7%). STIs were more prevalent among women in the younger age group of 15 – 24 years (54.7%), unemployed (54.0%), Primipara (62.3%), and in the third trimester of pregnancy (72.7%). Conclusion: A high prevalence of STIs was found among pregnant women attending ANC in the West Coast region of The Gambia. Public health intervention programmes should be strengthened to promote the sexual and reproductive health of pregnant women in The Gambia. Keywords: Sexually transmitted infections; pregnant women; antenatal clinics; The Gambia.

Precipitation modes over the Western Ghats orography during the summer monsoon season

2021 ◽  
Author(s):  
Jayesh Phadtare ◽  
Jennifer Fletcher ◽  
Andrew Ross ◽  
Andy Turner ◽  
Thorwald Stein ◽  
...  
Keyword(s):  
Summer Monsoon ◽  
West Coast ◽  
Western Ghats ◽  
Monsoon Season ◽  
Radiosonde Data ◽  
Summer Monsoon Season ◽  
The West ◽  
Radiosonde Station ◽  
Westerly Flow ◽  
The Western Ghats

<p>Precipitation distribution around an orographic barrier is controlled by the Froude Number (Fr) of the impinging flow. Fr is essentially a ratio of kinetic energy and stratification of winds around the orography. For Fr > 1 (Fr <1), the flow is unblocked (blocked) and precipitation occurs over the mountain peaks and the lee region (upwind region). While idealized modelling studies have robustly established this relationship, its widespread real-world application is hampered by the dearth of relevant observations. Nevertheless, the data collected in the field campaigns give us an opportunity to explore this relationship and provide a testbed for numerical models. A realistic distribution of precipitation over a mountainous region in these models is necessary for flash-flood and landslide forecasting. The Western Ghats region is a classic example where the orographically induced precipitation leads to floods and landslides during the summer monsoon season. In the recent INCOMPASS field campaign, it was shown that the precipitation over the west coast of India occurred in alternate offshore and onshore phases. The Western Ghats received precipitation predominantly during the onshore phase which was characterized by a stronger westerly flow. Here, using the radiosonde data from a station over the Indian west coast and IMERG precipitation product, we show that climatologically, these phases can be mapped over an Fr-based classification of the monsoonal westerly flow. Classifying the flow as 'High Fr' (Fr >1), 'Moderate Fr' ( 0.5 < Fr ≤ 1) and 'Low Fr' ( Fr ≤ 0.5 ) gives three topographical modes of precipitation -- 'Orographic', 'Coastal' and 'Offshore', respectively.  Moreover, these modes are not sensitive to the choice of radiosonde station over the west coast.</p>

scholarly journals Improving WSR-88D Radar QPE for Orographic Precipitation Using Profiler Observations

2014 ◽  
Vol 15 (3) ◽  
pp. 1135-1151 ◽  
Author(s):  
Youcun Qi ◽  
Jian Zhang ◽  
Brian Kaney ◽  
Carrie Langston ◽  
Kenneth Howard
Keyword(s):  
Sierra Nevada ◽  
West Coast ◽  
Heavy Rain ◽  
Moisture Flux ◽  
Heavy Precipitation ◽  
The United States ◽  
The West ◽  
Radar Beam ◽  
Orographic Enhancement ◽  
Coast Region

Abstract Quantitative precipitation estimation (QPE) in the West Coast region of the United States has been a big challenge for Weather Surveillance Radar-1988 Doppler (WSR-88D) because of severe blockages caused by the complex terrain. The majority of the heavy precipitation in the West Coast region is associated with strong moisture flux from the Pacific that interacts with the coastal mountains. Such orographic enhancement of precipitation occurs at low levels and cannot be observed well by WSR-88D because of severe blockages. Specifically, the radar beam either samples too high above the ground or misses the orographic enhancement at lower levels, or the beam broadens with range and cannot adequately resolve vertical variations of the reflectivity structure. The current study developed an algorithm that uses S-band Precipitation Profiler (S-PROF) radar observations in northern California to improve WSR-88D QPEs in the area. The profiler data are used to calculate two sets of reference vertical profiles of reflectivity (RVPRs), one for the coastal mountains and another for the Sierra Nevada. The RVPRs are then used to correct the WSR-88D QPEs in the corresponding areas. The S-PROF–based VPR correction methodology (S-PROF-VPR) has taken into account orographic processes and radar beam broadenings with range. It is tested using three heavy rain events and is found to provide significant improvements over the operational radar QPE.

Sign in / Sign up

Export Citation Format

Share Document