scholarly journals Field Survey on Salt-Wedge and Internal Wave in Hinuma River

1982 ◽  
Vol 26 ◽  
pp. 501-506
Keyword(s):  
Internal Wave ◽  
Field Survey ◽  
Salt Wedge

scholarly journals INFLUENCE OF STOKES DRIFT ON SALT WEDGE INTRUSION EVALUATED USING FULLY-NONLINEAR AND STRONGLY-DISPERSIVE WAVE EQUATIONS

2011 ◽  
Vol 1 (32) ◽  
pp. 34 ◽  
Author(s):  
Keisuke Nakayama ◽  
Tetsuya Shintani ◽  
Taro Kakinuma ◽  
Yasuyuki Maruya ◽  
Yoshinori Yonome ◽  
...  
Keyword(s):  
Internal Wave ◽  
Surface Waves ◽  
Wave Equations ◽  
Three Dimensional ◽  
River Mouth ◽  
Stokes Drift ◽  
Radiation Stress ◽  
Fully Nonlinear ◽  
Salt Wedge ◽  
Significant Difference

This paper describes the influence of surface waves on salt-wedge intrusion in terms of radiation stress. Radiation stress may increase salt-wedge intrusion when surface waves propagate up a river. This study thus aims to reveal the effect of radiation stress on the distance of salt-wedge intrusion by using fully nonlinear strongly dispersive internal wave equations and three-dimensional numerical computation model, Fantom3D. Fully nonlinear strongly dispersive internal wave model reveals the possibility that large radiation stress is induced near the river mouth and increases the distance of salt-wedge intrusion. Three-dimensional numerical model also demonstrates that there is a significant difference in the intrusion distance by taking into account radiation stress.

Field survey on the freshwater snails in Cheju Province(Quelpart lsland), Korea: Especially on presence or not of Parafossarulus manchouricus

1964 ◽  
Vol 2 (3) ◽  
pp. 183 ◽  
Author(s):  
Suck Young Kang ◽  
In Kyu Loh ◽  
Yung Hoon Park ◽  
Byung Chan Kim ◽  
Too Bong Lim
Keyword(s):  
Field Survey ◽  
Freshwater Snails

TRANSFORMASI DESAIN RUMAH TINGGAL DI PERUMAHAN PADMA RESIDENCE (BANTUL, YOGYAKARTA) SAAT DITEMPATI

2017 ◽  
Vol 11 (3) ◽  
pp. 225
Author(s):  
Gabriella Calista Agnes
Keyword(s):  
Data Analysis ◽  
Field Survey ◽  
Present Condition ◽  
Dominant Factor ◽  
Literature Study ◽  
Causal Factors ◽  
Architectural Elements ◽  
Initial Design ◽  
Dining Room ◽  
Physical Changes

Abstract: A house is a basic need for every human’s life. It is not only a place for shelter, but also a place for a family to live, to have social interaction between them, to raise the children, and to give the values of life. Padma Residence is a modern residence which is built by PT. Surya Coco Jaya. Most of its residents make changes to their houses after they occupy it. The main purpose of this study is to observe changes toward the initial design by comparing the initial design and present condition, recording the present condition of the house when it has occupied by determine architectural elements which are changed, determining causal factors of changes, and finding out dominant causal factors toward alteration of architectural elements of the house at Padma Residence, Bantul, Yogyakarta while it is occupied. Methods used in data collecting are literature study and a field survey. A field survey includes observation, interview, and distributing questionnaires to 25 respondents who are the owners of houses in this residence. Data analysis used table which compare the initial design and nowadays condition. The result of data processing and analyzing reveals that the owners do physical changes at their houses while they occupy them, particularly at the front appearance of the house. The changes include the addition of canopies at carport and changes in the layout of the rooms, such as kitchen, dining room, and backyard. A dominant factor which has caused those changes is the function of rooms which is added to the house.Keywords: residence, physical changes, the additon of functionAbstrak : Rumah merupakan kebutuhan utama bagi kehidupan setiap manusia. Selain sebagai tempat untuk berlindung, rumah juga merupakan wadah atau tempat manusia atau sebuah keluarga melangsungkan kehidupannya. Perumahan Padma Residence merupakan sebuah hunian modern yang dibangun PT. Surya Coco Jaya dan sebagian besar penghuninya melakukan perubahan pada rumah tinggalnya saat ditempati. Tujuan utama penelitian ini adalah mengetahui perubahan terhadap desain awal rumah tinggal dan kondisi rumah tinggal tersebut saat ditempati dengan mengetahui unsur-unsur arsitektural yang berubah pada desain rumah tinggal saat ditempati di Perumahan Padma Residence, Bantul, Yogyakarta. Metode penelitian dilakukan dengan studi literatur dan survei lapangan. Survei lapangan meliputi pengamatan, wawancara, dan penyebaran kuesioner kepada 25 responden yang merupakan pemilik rumah tinggal di perumahan tersebut. Hasil dari pengolahan dan analisis data menunjukkan bahwa pemilik rumah melakukan perubahan fisik pada rumah tinggalnya saat ditempati, terutama pada tampilan depan bangunan, perubahan yang dilakukan adalah menambahkan kanopi pada carport, peletakan ruang seperti dapur, ruang makan, dan taman belakang. Faktor-faktor yang menjadi penyebab perubahan tersebut adalah pertambahan fungsi ruang.Kata kunci: rumah tinggal, perubahan fisik, pertambahan fungsi

Preliminary Results on Aquatic Insects in the Me Linh Station for Biodiversity, Vinh Phuc Province

2017 ◽  
Vol 33 (4) ◽  
Author(s):  
Nguyen Van Hieu ◽  
Nguyen Van Vinh
Keyword(s):  
Quantitative Analysis ◽  
Aquatic Insects ◽  
Field Survey ◽  
Aquatic Insect ◽  
Insect Species ◽  
Functional Feeding Groups ◽  
Species Number ◽  
Feeding Groups ◽  
Preliminary Results

An intensive field survey on aquatic insects of Me Linh Station for Biodiversity in Vinhphuc province was conducted in December 2015. Specimens were collected at 8 different sites and aquatic insects were collected both quantitatively by Surber net and qualitatively by hand net, pond net. As a result, a total of 110 aquatic insect species belonging to 98 genera, 49 families and 9 orders were recognized. Among these, the order Ephemeroptera had the highest species number with 26 species, followed by Odonata with 25 species, Trichoptera with 18 species, Coleoptera with 15 species, Hemiptera with 11 species, Diptera with 9 species. Lepidoptera, Plecoptera and Megaloptera had the lowest of species number, represented by 3 species of Lepidoptera, 2 species of Plecoptera and 1 species of Megaloptera. Besides, the quantitative analysis results and the functional feeding groups were provided.

PROFITABILITY ANALYSIS OF NORMAL SEASON AND OFF-SEASON MUSKMELON CULTIVATION IN DISTRICT SIALKOT, PAKISTAN

1970 ◽  
pp. 24
Author(s):  
MUHAMMAD TAHIR LATIF, FALAK SHER, MUZZAMMIL HUSSAIN
Keyword(s):  
Sampling Method ◽  
Field Survey ◽  
Market Price ◽  
Primary Data ◽  
Customer Demand ◽  
Net Return ◽  
Profitability Analysis ◽  
Economic Parameters ◽  
Convenience Sampling ◽  
Gross Income

A field survey was conducted during 2016 to estimate the profitability of normal season and off-season muskmelon cultivation in district Sialkot, Pakistan. The primary data was collected from forty farmers with convenience sampling method. Economic parameters like net return and BCR were employed. Off-season muskmelon cultivation was found economically feasible due to additions of yield (17%), gross income (122%), profit (161%) and market price (90%) in comparison to normal season crop. Therefore, it is recommended to cultivate the off-season muskmelon (BCR 3.26) to obtain more profit and fulfill the customer demand in less supply period instead of normal season cultivation (BCR 2.44).

SHALLOW WATER HABITAT MAPPING AND REEF FISH STOCK ESTIMATION USING HIGH RESOLUTION SATELLITE DATA

2013 ◽  
Vol 5 (2) ◽  
Author(s):  
Vincentius P. Siregar ◽  
Sam Wouthuyzen ◽  
Andriani Sunuddin ◽  
Ari Anggoro ◽  
Ade Ayu Mustika
Keyword(s):  
High Resolution ◽  
Reef Fish ◽  
Satellite Imagery ◽  
Field Survey ◽  
Coral Cover ◽  
Fish Density ◽  
Fish Stock ◽  
Benthic Habitat ◽  
Live Coral ◽  
Stock Estimation

Shallow marine waters comprise diverse benthic types forming habitats for reef fish community, which important for the livelihood of coastal and small island inhabitants. Satellite imagery provide synoptic map of benthic habitat and further utilized to estimate reef fish stock. The objective of this research was to estimate reef fish stock in complex coral reef of Pulau Pari, by utilizing high resolution satellite imagery of the WorldView-2 in combination with field data such as visual census of reef fish. Field survey was conducted between May-August 2013 with 160 sampling points representing four sites (north, south, west, and east). The image was analy-zed and grouped into five classes of benthic habitats i.e., live coral (LC), dead coral (DC), sand (Sa), seagrass (Sg), and mix (Mx) (combination seagrass+coral and seagrass+sand). The overall accuracy of benthic habitat map was 78%. Field survey revealed that the highest live coral cover (58%) was found at the north site with fish density 3.69 and 1.50 ind/m2at 3 and 10 m depth, respectively. Meanwhile, the lowest live coral cover (18%) was found at the south site with fish density 2.79 and 2.18  ind/m2 at 3 and 10 m depth, respectively. Interpolation on fish density data in each habitat class resulted in standing stock reef fish estimation:  LC (5,340,698 ind), DC (56,254,356 ind), Sa (13,370,154 ind), Sg (1,776,195 ind) and Mx (14,557,680 ind). Keywords: mapping, satellite imagery, benthic habitat, reef fish, stock estimation

Sign in / Sign up

Export Citation Format

Share Document