scholarly journals Kandungan Klorofil-a dan Kelimpahan di Perairan Kendal, Jawa Tengah

2021 ◽  
Vol 10 (1) ◽  
pp. 102-108
Author(s):  
Bonita Nindya Garini ◽  
Jusup Suprijanto ◽  
Ibnu Pratikto
Keyword(s):  
Chlorophyll A ◽  
Global Positioning System ◽  
Chlorophyll Concentration ◽  
Sampling Location ◽  
Positioning System ◽  
Industrial Activities ◽  
The North ◽  
Global Positioning ◽  
Descriptive Method

Kondisi perairan suatu wilayah memiliki tingkat kesuburan yang berbeda – beda salah satunya pada Perairan Jawa khususnya bagian utara. Perairan Utara Jawa memiliki kondisi arus dan gelombang yang cukup stabil dimana hal ini berpengaruh terhadap kandungan yang terdapat di dalamnya. Perairan Kendal merupakan salah satu perairan yang terletak di Utara Jawa yang dimanfaatkan dalam kegiatan perikanan. Kendal merupakan Kabupaten yang memiliki hasil tangkapan ikan yang cukup besar yang dimanfaatkan masyarakat untuk kehidupan sehari- hari. Kabupaten Kendal juga terkenal dengan kegiatan industri seperti industri Kayu Lapis. Kegiatan industri berdampak terhadap kondisi perairan di Kendal karena buangan limbah cair maupun padat yang dapat mempengaruhi tingkat kesuburan. Tingkat sesuburan perairan dapat dilihat salah satunya dari kandungan klorofil-a yang terdapat di dalamnya. Kandungan klorofil-a pada perairan dapat dilihat melalui banyaknya fitoplankton karena fitoplankton merupakan penghasil klorofil-a tertinggi di perairan. Tujuan dari penelitian ini adalah untuk mengetahui kualitas Perairan Kendal dilihat dari kandungan klorofil-a dan fitoplankton. Metode yang digunakan dalam penelitian ini adalah metode deskriptif, metode deskripstif dimaksudkan untuk mendapatkan gambaran tentang kualitas perairan melalui sebaran kandungan spasial klorofil-a pada Perairan Kendal. Teknik penentuan lokasi sampling dan pengambilan sampel menggunakan metode purpose sampling. Pengambilan data lapangan dilakukan sebanyak 10 titik. Titik lokasi ditandai menggunakan Global Positioning System. Hasil yang didapatkan dari penelitian menunjukkan hasil persebaran konsentrasi klorofil-a pada masing – masing stasiun berbeda dan hasil kelimpahan fitoplankton yang di dapatkan juga berbeda tetapi sesuai dengan konsentrasi klorofil-a pada masing – masing stasiun. Perbedaan disebabkan karena adanya faktor perbedaan lokasi sampling. Konsentrasi klorofil yang tertinggi terdapat pada stasiun 6 sebesar 1,7025 mg/m³ dan kelimpahan fitoplankton tertinggi juga pada stasiun 6 sebanyak 43.373 sel/L.The condition of the waters of an area has different fertility levels - one of which is in the Java waters especially in the north. The waters of North Java have relatively stable currents and waves which affect the content contained therein. Kendal waters is one of the waters located in North Java that is used in fisheries activities. Kendal is a regency that has a large enough fish catch that is utilized by the community for daily life. Kendal Regency is also famous for industrial activities such as the Plywood Industry. Industrial activities have an impact on water conditions in Kendal because of liquid and solid waste discharges that can affect fertility. Water fertility can be seen one of them from the content of chlorophyll-a contained in it. Chlorophyll-a content in water can be seen through the number of phytoplankton because phytoplankton is the highest chlorophyll-a producer in water. The purpose of this study was to determine the quality of Kendal Waters in terms of chlorophyll-a and phytoplankton content. The method used in this research is descriptive method, descriptive method is intended to get a picture of the quality of waters through the distribution of spatial content of chlorophyll-a in Kendal waters. The technique of determining the location of sampling and sampling uses the purpose sampling method. Field data collection was carried out by 10 points. Location points are marked using the Global Positioning System. The results obtained from the study showed that the distribution of chlorophyll-a concentrations at each station was different and the results of the abundance of phytoplankton obtained were also different but in accordance with the concentration of chlorophyll-a at each station. The difference is due to the sampling location difference factor. The highest chlorophyll concentration was found at station 6 at 1.7025 mg/m³ and the highest phytoplankton abundance was also at station 6 as many as 43,373 cells/L.

scholarly journals CONTRIBUIÇÃO À COMPREENSÃO DO CAMPO TÉRMICO DA CIDADE DE JUAZEIRO DO NORTE (CE) PELA METODOLOGIA DE TRANSECTOS MÓVEIS

2019 ◽  
Vol 21 (2) ◽  
pp. 1363-1373
Author(s):  
Gabriella Saraiva de Albuquerque ◽  
Mirelle Oliveira Silva ◽  
Gabriela De Souza Estevão
Keyword(s):  
Global Positioning System ◽  
Spatial Modeling ◽  
Urban Climate ◽  
Positioning System ◽  
The North ◽  
Regional University ◽  
Global Positioning ◽  
Receiver Model ◽  
The City ◽  
Study Plan

O presente trabalho, está vinculado a um projeto de iniciação científica desenvolvido junto ao Laboratório de Geoprocessamento da Universidade Regional do Cariri que tem como temática a modelagem espacial das ilhas de calor e de frescor na cidade de Juazeiro do Norte, Ceará, Brasil. Os resultados apresentados foram obtidos através do primeiro campo do referido projeto de pesquisa e foi realizado por meio da metodologia de transecto móvel, contemplando os trajetos na direção sul-norte e oeste-leste para a coleta dos dados de temperatura do ar, com o intuito de compreender os contrastes térmicos da cidade de Juazeiro do Norte. O transecto fora realizado ainda no período chuvoso e iniciou-se às 21:00 horas, não ultrapassando 50 minutos, coletando no total a temperatura de 25  pontos distribuídos no perímetro urbano e considerando as características geoeambientais e geourbanas. Os registros foram executados utilizando um termômetro digital com sensor externo com cabo de 2m Icotem e um receptor GPS (Global Positioning System) modelo Garmin Map 76CSX para marcação das coordenadas UTM dos respectivos registros de temperatura. As maiores temperaturas, de 24,8ºC á 25,8ºC foram registradas em espaços densamente construídos, as menores, entre 22,6ºC á 23ºC foram percebidas em áreas com características rurais e menos urbanizadas.Palavras-chave: Ilha de calor. Clima urbano. Transecto Móvel.                                                                   ABSTRACTThe present work is linked to a project of scientific initiation, together with the Laboratory of Geoprocessing of the Regional University of Cariri, whose theme is the spatial modeling of the islands of heat and freshness in the city of Juazeiro do Norte, Ceará, Brazil. The results of the research were submitted through the mapping of the first study plan south-north and east-east to the collection of data of air temperature, with the intention. Of contracting the thermal contrasts of the city of Juazeiro of the North. The transectofor theater was still rainy and began at 21:00 hours, not exceeding 50 minutes, collecting in total the temperature of 25 points distributed in the urban perimeter and considering geo-environmental and georban features. The terminals were run using a digital thermometer with external sensor with 2m Icotem cable and a GPS (Global Positioning System) receiver model Garmin Map 76CSX for marking the UTM coordinates of the children temperature registers. The highest temperatures, from 24.8ºC to 25.8ºC were recorded in densely constructed spaces, the lowest temperatures, between 22.6ºC and 23ºC, were observed in areas with rural and less urbanized characteristics.Keywords: Island of heat. Urban climate. Transect Mobile. RESUMENEste trabajo está vinculado a un proyecto de iniciación científica desarrollado en el Laboratorio de Geoprocesamiento de la Universidad Regional de Cariri, cuyo tema es el modelado espacial de las islas de calor y frescura en la ciudad de Juazeiro do Norte, Ceará, Brasil. Los resultados presentados se obtuvieron del primer campo de este proyecto de investigación y se llevaron a cabo mediante la metodología de transecto móvil, contemplando las rutas sur-norte y oeste-este para la recolección de datos de temperatura del aire, con el fin de para comprender los contrastes térmicos de la ciudad de Juazeiro do Norte. El transecto se realizó durante la estación lluviosa y comenzó a las 21:00 horas, sin exceder los 50 minutos, recogiendo una temperatura total de 25 puntos distribuidos en el perímetro urbano y considerando las características geoambientales y geourban. Las grabaciones se realizaron utilizando un termómetro digital con sensor externo con cable Icotem de 2 m y un receptor del Sistema de Posicionamiento Global (GPS) Garmin Map 76CSX para marcar las coordenadas UTM de los respectivos registros de temperatura. Las temperaturas más altas, de 24.8ºC a 25.8ºC, se registraron en espacios densamente construidos, la más baja, entre 22.6ºC a 23ºC, se observó en áreas con características rurales y menos urbanizadas.Palabras clave: isla de calor. Clima urbano. Transecto móvil.

scholarly journals ANALISIS TOPOLOGI DAN POPULASI PENDUDUK PEMUKIMAN MISKIN MENGGUNAKAN TEKNOLOGI REMOTE SENSING

2012 ◽  
Vol 6 (1) ◽  
pp. 20
Author(s):  
Aniati Murni Arymurthy ◽  
Edina Putri Purwandari
Keyword(s):  
Remote Sensing ◽  
High Resolution ◽  
Global Positioning System ◽  
Urban Areas ◽  
Complex Problem ◽  
Positioning System ◽  
Use Of Technology ◽  
Global Positioning ◽  
Very High

Wilayah perkotaan di Indonesia memiliki karakteristik yang sama dengan wilayah perkotaan di negara-negara berkembang. Beberapa karakteristik tersebut seperti: (1) penurunan fungsi alam dengan berkurangnya ruang hijau atau vegetasi, (2) penumpukan bangunan beratap pada wilayah yang dekat dengan akses transportasi, industri dan pasar, (3) lokasi pemukiman pada zona yang berbahaya karena dekat dengan terminal, sepanjang aliran sungai, sepanjang jalur rel kereta api, dan tempat pembuangan sampah akhir. Keterkaitan antara nilai indeks kemiskinan dengan morfologi fisik dan vegetasi suatu wilayah dapat diketahui dengan pemanfaatan teknologi remote sensing (RS). Keakuratan analisis pemukiman miskin dengan teknologi RS bergantung pada kualitas citra satelit Very High Resolution (VHR) dan kelengkapan dataset Sistem Informasi Geografis (SIG). Teknologi Geospasial yang terintegrasi seperti RS, SIG, dan Global Positioning System (GPS) dapat berkontribusi secara interaktif dalam penilaian, pemahaman dan pemetaan untuk memecahkan masalah pemukiman penduduk yang kompleks di Indonesia. Urban areas in Indonesia have the same characteristics with urban areas in developing countries. Some characteristics such as: (1) decreased of the function of nature with the reduced the number of natural green space or vegetation, (2) accumulation of roofed buildings in the area close to transportation access, industry and market, (3) the location of housing in the dangerous zone as close to the terminal, along the river side, along the railway lines, and the final waste disposal sites. The linkage between poverty index values with the physical morphology and vegetation of an area can be identified by the use of technology and remote sensing (RS). The accuracy of the analysis of poor housing with RS technology relies on the image quality of Very High Resolution (VHR) satellite and the completeness of the dataset Geographic Information Systems (GIS). Geo-spatial technologies are integrated as RS, GIS, and Global Positioning System (GPS) can contribute interactively in the assessment, understanding and mapping to solve the complex problem of residential in Indonesia.

Rancang bangun aplikasi presensi berbasis geolokasi dan interval waktu

JURNAL ELTEK ◽  
2021 ◽  
Vol 19 (1) ◽  
pp. 18
Author(s):  
Galih Hendra Wibowo ◽  
Junaedi Adi Prasetyo ◽  
Mohamad Dimyati Ayatullah
Keyword(s):  
Global Positioning System ◽  
Spatial Information ◽  
Working Hours ◽  
Work Place ◽  
Positioning System ◽  
Coverage Area ◽  
Global Positioning ◽  
Information Engineering ◽  
Information And Communication

Dewasa ini, masih banyak didapati kecurangan presensi kehadiran saat bekerja seperti melakukan titip absen kepada pegawai lain atau hanya absen saat jam masuk dan jam pulang, namun pegawai tersebut tidak sedang berada di kantor selama jam kerja. Hal ini dapat menyebabkan produktifitas menurun yang berakibat pada kualitas pegawai. Permasalahan ini dapat diselesaikan dengan memanfaatkan penerapan teknologi informasi dan komonukasi seperti Global Positioning System (GPS) yang dapat mendata informasi spasial seseorang dalam area lingkup. Melalui aplikasi android pada setiap perangkat yang dimiliki pegawai, dapat memudahkan serta transparansi dari kegiatan presensi. Sistem didalamnya akan membatasi cakupan area lingkup dengan area luar lingkup yang diambil dari titik koordinat latitude dan longtitu ditempat kerja. Lingkupan area ditentukan dari radius pada masing-masing lokasi. Nilai koordinat dijadikan dasar dalam kehadiran serta waktu kerja yang ditentukan dan dicek secara berkala atau interval waktu. Adapun tingkat keberhasilan system presensi berbasis geolokasi yang telah diperoleha dalah rata-rata 92% dengan rincian 98% di area Teknik Informatika, 100% di area rektorat, dan 80 % di area 454.   Today, there are still many cases of attendance fraud while working, such as entrusting absences to other employees or only absent during entry and return hours, but these employees are not in the office during working hours. This can lead to decreased productivity which results in the quality of employees. This problem can be solved by utilizing the application of information and communication technology such as the Global Positioning System (GPS) which can record a person's spatial information within the scope area. Through the Android application on every device owned by employees, it can facilitate and transparency of attendance activities. The system inside will limit the coverage area of ​​the scope to the area outside the scope which is taken from the latitude and longitude coordinate points of the work place. The area coverage is determined from the radius at each location. Coordinate values ​​are used as the basis for attendance and work time which is determined and checked periodically or at time intervals. The success rate of the geolocation-based presence system that has been obtained is an average of 92% with details of 98% in the Information Engineering area, 100% in the rectorate area, and 80% in the 454 area.  

A study of the tectonically active Marmara region, Turkey, using a global positioning system (GPS)

2003 ◽  
Vol 40 (9) ◽  
pp. 1191-1202 ◽  
Author(s):  
U Dogan ◽  
G Lachapelle ◽  
L Fortes ◽  
S Ergintav
Keyword(s):  
Global Positioning System ◽  
Rigid Motion ◽  
North Anatolian Fault ◽  
Marmara Region ◽  
Positioning System ◽  
Tectonic Zone ◽  
The North ◽  
Slip Regime ◽  
Global Positioning ◽  
Tectonically Active

The Marmara region is an active tectonic zone characterized by a transition in the dextral strike-slip regime of the western part of the North Anatolian Fault Zone. The main goal of this paper is to assess the use of global positioning system (GPS) data sets collected during five relatively short time intervals during the period December 2000 – March 2002 to detect potential crustal deformations. To determine if the deformations measured with GPS are real or only a data artifact, a statistical reliability analysis of the solutions is performed. The results indicate that each station has statistically different temporal behavior and significant relative motions. This area is consequently still very active, with significant deformation patterns. Although the average magnitude for our estimated displacement rates with respect to ANKR station, which represents the rigid motion of the Anatolian plate, is in the order of 1.1 cm/year in the south of the North Anatolian Fault, it increases to 2.3 cm/year in the northern part of the area.

scholarly journals Comparing the Data Quality of Global Positioning System Devices and Mobile Phones for Assessing Relationships Between Place, Mobility, and Health: Field Study

2018 ◽  
Vol 6 (8) ◽  
pp. e168 ◽  
Author(s):  
Robert Goodspeed ◽  
Xiang Yan ◽  
Jean Hardy ◽  
VG Vinod Vydiswaran ◽  
Veronica J Berrocal ◽  
...  
Keyword(s):  
Data Quality ◽  
Field Study ◽  
Mobile Phones ◽  
Global Positioning System ◽  
Positioning System ◽  
Global Positioning ◽  
Health Field

Contemporary Deformation of the North China Plain From Global Positioning System Data

2018 ◽  
Vol 45 (4) ◽  
pp. 1851-1859 ◽  
Author(s):  
Y. G. Zhang ◽  
W. J. Zheng ◽  
Y. J. Wang ◽  
D. L. Zhang ◽  
Y. T. Tian ◽  
...  
Keyword(s):  
Global Positioning System ◽  
North China Plain ◽  
North China ◽  
Positioning System ◽  
The North ◽  
The North China Plain ◽  
Global Positioning ◽  
System Data

Internet of Things (IOT) Solution for Increasing the Quality of Life of Physically Challenged People

2017 ◽  
Vol 29 (4) ◽  
pp. 72-83 ◽  
Author(s):  
G. M. Siddesh ◽  
K. G. Srinivasa ◽  
Siddharth Kaushik ◽  
S. V. Varun ◽  
Vidhatri Subramanyam ◽  
...  
Keyword(s):  
Global Positioning System ◽  
Smart Phone ◽  
Feedback System ◽  
Positioning System ◽  
Android Application ◽  
Gps Technology ◽  
Global Positioning ◽  
White Cane ◽  
Physically Challenged

Visually Impaired (VI) people generally face difficulties during their pedestrian commute, when forced on to side-walks cluttered with vendors, animals and other obstacles. No single system can comprehensively cover all of their mobility needs. The proposed system intends to provide smart electronic aid for the VI which is appropriate to complement their white cane using the principles of the IoT. It detects any low-lying obstacles on its course and alerts the user to them and also uses Global Positioning System (GPS) technology which is a component of any smart phone, to pinpoint the VI's location when necessary. A feedback system, which is essentially a simple auditory circuit, which alarms the user of any obstacle, and informs priory designated guardians about the VI's current whereabouts, done by transmitting the coordinates of VI to a registered mobile number fed into an Android Application.

scholarly journals Examination of Multi-Receiver GPS/EGNOS Positioning with Kalman Filtering and Validation Based on CORS Stations

Sensors ◽  
2020 ◽  
Vol 20 (9) ◽  
pp. 2732 ◽  
Author(s):  
Adam Ciećko ◽  
Mieczysław Bakuła ◽  
Grzegorz Grunwald ◽  
Janusz Ćwiklak
Keyword(s):  
Kalman Filter ◽  
Global Positioning System ◽  
Kalman Filtering ◽  
Test Area ◽  
Positioning System ◽  
Final Solution ◽  
Gps Receivers ◽  
Reliable Monitoring ◽  
Global Positioning

This paper presents the concept of precise navigation based on SBAS technology and CORS stations. In a kinematic test, three rover Global Positioning System (GPS) receivers, properly spaced relatively to each other, were used in order to estimate reliable and redundant GPS/EGNOS positions. Next, the Kalman filter was employed to give the final solution. It was proven that EGNOS positioning allows to obtain an accuracy in the range of about 0.5–1.5 m. The proposed solution involving the use of three mobile receivers and Kalman filtering allowed to reduce the 3D error to a level below 0.3 m. Such an accuracy was achieved using only GPS L1 code observations and EGNOS corrections. Additionally, a reliable monitoring of quality of GPS/EGNOS positioning in the test area based on CORS stations was presented.

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