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1

Determination of groundwater recharge-discharge zone to support water resources in Galur-Lendah area, Indonesia

Listyani R. A. T., Prabowo Ignatius A., Suparta Wayan

Journal of Water and Land Development

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2023

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no. 56

203--214

EN

The impact of changes in regional development along with the construction of Yogyakarta International Airport in Kulon Progo Regency may affect land use changes as the activities of the surrounding population. Galur-Lendah area, which is located near the city of Yogyakarta and acts as the entrance to Kulon Progo, will also develop. Along with these developments, the determination of the groundwater recharge-discharge area is needed to ensure the availability of groundwater at this site. The purpose of this study was to determine the zonation of groundwater recharge-discharge areas to support the availability of groundwater. The method of research is a spatial analysis using a geographic information system (GIS) based on ratings and weighting values for six parameters, including slope, rainfall, groundwater table depth, soil type, rock permeability, and land use. The field hydrogeological was also conducted to find out rock permeability and groundwater quality (pH, EC, TDS). The results showed that areas with potential for groundwater recharge were in the central and northeastern parts of the study area and the discharge zones in the north and south were with potential infiltration values of 26-43 and 44-59, respectively. However, the recharge area can still function as a discharge zone.

2

Spatial Assessment and Mapping of Water Quality in Lake Sentani (Indonesia) Using In-Situ Data and Satellite Imagery

Tanjung Rosye Hefmi Rechnelty, Indrayani Ervina, Hamuna Baigo, Agamawan Lalu Panji Imam, Alianto

Ecological Engineering & Environmental Technology

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2023

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Vol. 24, iss. 9

71--83

EN

This study aims to examine the water quality of Lake Sentani using both in-situ data and satellite remote sensing data. In-situ data was taken in July 2023 at 18 sampling sites, including temperature, DO, pH, TDS, and water transparency. In-situ data is also used to develop and validate algorithms for estimating water quality from satellite remote sensing data. Multi-temporal Landsat-8 satellite imagery was used to spatially and temporally map the surface water quality of Lake Sentani. In-situ data showed temperature, DO, pH, TDS, and water transparency ranging from 29.3°C to 31.8°C, 1.7 mg/L to 7.9 mg/L, 7.75 to 8.64, 23 mg/L to 46 mg/L, and 2.28 m to 2.94 m, respectively. Only water transparency does not meet the quality standards for water quality (class 1 and class 2), while the other parameters meet class 1 to class 3 quality standards for surface water samples. The accuracy of the algorithm used and the resulting one has a low Mean Absolute Error value, namely 0.81 (temperature), 0.37 (DO), 4.84 (TDS), and 0.12 (water transparency). The temperature and TDS concentrations from the satellite imagery data ranged from 28.110°C to 33.918°C, and 7.829 mg/L to 102.702 mg/L, respectively. Both of these parameters still meet water quality standards. The DO concentrations ranged from 2.228 mg/L to 12.562 mg/L, and water transparency ranged from 0.424 m to 3.151 m. The concentration of DO and water transparency do not meet quality standards in several parts of Lake Sentani, especially in November and August.

3

Performance of AIS geoinformation extraction using SQL and NoSQL TranStat databases

Czapliński Wojciech, Gąsowski Wojciech

Zeszyty Naukowe Akademii Morskiej w Szczecinie

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2022

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nr 71 (143)

93--101

EN

The Automatic Identification System (AIS) device is mandatory for ships that comply with the International Convention for the Safety of Life at Sea (SOLAS). AIS is intended for vessel traffic monitoring to improve shipping safety. In the examined area, the base station received 22 128 345 messages in April 2019. Approximately 80% of these messages included position reports, which were subjected to geospatial analysis. One possible utilization of AIS messages is used in an intelligent maritime transport statistics production system called TranStat in the Gospostrateg project. This specific study compares the speed of executing geospatial queries in a relational PostgreSQL database engine and a non-relational MongoDB database engine. For the purpose of this research, we have defined four AIS datasets, four test polygons of varied number of vertices, and a reference point on a fairway. The tests were used to assess the execution of the queries in a database that returns the number of ships located in a predefined area and the number of ships located at a preset distance from the defined point. It has been determined from the test results that test queries are performed faster and data stored in the database occupy less disk space in MongoDB than in PostgreSQL. Faster geospatial analysis of AIS messages may improve the navigation safety by earlier detection of dangerous situations.

4

Historia i rola głównego dworca kolejowego w rozwoju urbanistycznym Rzeszowa

Janda Magdalena

Wiadomości Konserwatorskie

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2022

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Nr 71

80--93

PL

Dworzec kolejowy w Rzeszowie przechodził liczne przekształcenia. Pierwotnie nawiązywał do florenckiej, wczesnorenesansowej architektury pałacowej, a później zyskał modernistyczny charakter. Lokalizacja obiektu przy granicy miasta z Ruską Wsią spowodowała gwałtowny rozrost osady i centrum Rzeszowa w kierunku północnym. Budowa, oprócz utworzenia nowego środka lokomocji, wpłynęła na układ komunikacyjny miasta oraz proces kształtującej się sieci dróg. Problematyka powstawania linii kolejowych z dworcami w kontekście wpływu na urbanizację Rzeszowa nie została przebadana w sposób całościowy. Poruszana jest najczęściej przy analizach rozwoju przestrzennego miasta w poszczególnych okresach historycznych. Celem artykułu jest przedstawienie roli, jaką odegrała kolej dla Rzeszowa: począwszy od utworzenia węzła kolejowego po przemiany stacji i otaczającej jej zabudowy pochodzącej z drugiej połowy XX wieku. W pracy zobrazowano etapy powstawania węzła na tle współcześnie zabudowanego obszaru miasta.

EN

The railway station in Rzeszów went through numerous changes. Originally, it referenced Florentine, Early Renaissance palace architecture, and was later given a Modernist character. The building’s siting near the Rzeszów–Ruska Wieś border led to the rapid northward development of the settlement and Rzeszów’s center. The project, apart from creating a new means of transport, affected the city’s circulation layout and the development of the emerging road network. The development of railway lines and stations, in the context of impacting Rzeszów’s urbanization, was not holistically investigated previously. It was typically discussed in analyses of the city’s spatial development across history. This paper is to present the role that the railway played in Rzeszów, ranging from the construction of the railway junction to the transformation of the station and its surrounding development from the late twentieth century. The paper depicts the stages of the junction’s construction against the background of the contemporary urban built-up area.

5

Wyznaczanie korytarzy przewietrzających przy użyciu metody morfometrycznej dla wybranego fragmentu miasta Łodzi

Bochenek A., Klemm K.

Budownictwo i Architektura

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2016

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Vol. 15, nr 4

139--151

PL

W pracy podjęto próbę wyznaczenia terenów stanowiących potencjalne korytarze przewietrzające warunkujące prawidłowe funkcjonowanie systemu aeracyjnego miasta. Badanie zostało przeprowadzone przy użyciu jednej z najpopularniejszych metod – morfometrycznej, ze względu na niski koszt pozyskania danych oraz wysoką precyzję otrzymywanych wyników. Z uwagi na dominujący kierunek napływu wiatru, analizami objęto dowietrzny fragment miasta Łodzi. Pierwszy etap opracowania objął analizę podstawowych parametrów szorstkości terenu, tj. chropowatości podłoża (zo), przemieszczenia płaszczyzny zerowej (zd) oraz porowatości w obrębie warstwy dachowej (P). Na podstawie uzyskanych wyników oraz przyjętych kryteriów prawidłowego funkcjonowania korytarzy przewietrzających wyznaczono osiem obszarów swobodnego napływu powietrza do miasta.

EN

The aim of the paper was an indication of potential ventilation paths which affect proper functioning of the cities aerial system. The research was conducted using the most popular method – morphometric for the sake of low cost data gathering and high precision of final results. Due to the wind’s dominant direction, an analysis covered a windward part of Lodz. The first part of the research included an analysis of the basic roughness parameters such as: roughness length (zo), zero plane displacement height (zd) and porosity of the urban canopy layer (P). Based on the obtained results and taking into account ventilation paths criteria eight areas were designated which provide a free flow of air to the city.

6

Spatial distribution of biological and physical sediment parameters in the western Gulf of Gdańsk

Huzarska K.

Oceanologia

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2013

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No. 55 (2)

453-470

EN

The ongoing processes of surface sediments and their biological activity are highly dynamic. Sediment samples for the current study were collected at 48 stations in the Gulf of Gdańsk in May 2006, and the following sediment parameters were analysed: grain size distribution, water volume, permeability, organic matter content, chlorophyll a and EPS carbohydrate concentrations. The spatial distributions of the different parameters varied distinctly, which suggested a strongly diversified bottom environment. The results obtained were used to create spatial distribution maps, and statistical analyses of the results showed that the Gulf's bottom can be divided into four areas impacted by different parameters: (1) the inner Puck Bay; (2) the outer Puck Bay; (3) the outer Gulf of Gdańsk; (4) the open sea. Distinct correlations between microbenthic activity, expressed as carbohydrate and chlorophyll concentrations, and sediment physical parameters were noted. The bottom of the Gulf of Gdańsk appeared to be strongly influenced by wave motion. This led to the conclusion that the most dynamic areas are the shallow coastal zones, which play important roles in water purification processes and in the proper functioning of the Gulf of Gdańsk ecosystem. This study of the spatial distribution of sediment parameters is the first of its kind, and the widest-ranging study of sediments ever to be conducted in this region.

7

Krajobraz w planowaniu przestrzennym oczami społeczności lokalnej

Banach Marzena

Teka Komisji Architektury, Urbanistyki i Studiów Krajobrazowych

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2012

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T. 8, nr 2

7--17

PL

Polityka przestrzenna polskich miast w ostatnich latach jest realizowana dość dynamicznie. Wynika to m.in. z gwałtownego postępowania urbanizacji. Szybkie tempo tego procesu skutkuje nieraz nieprzemyślanymi decyzjami planistycznymi. Co więcej, ułomność owych decyzji w kontekście ochrony dziedzictwa kulturowego, ale i przyrodniczego zdają się dostrzegać jedynie mieszkańcy. Nierzadko na przekór lokalnym władzom. Niniejszy artykuł ma na celu zwrócenie uwagi na wybrane problemy wynikające z nieodpowiedzialnego planowania przestrzennego, z perspektywy mieszkańca.

EN

The spatial policy in towns in recent years is implemented quite dynamically. This is connected with rapid urbanization proceeding. The quick pace of this process results in the Chamber not over thought planning decisions. Moreover, the imperfection of these decisions in the context of the protection of the natural and cultural heritage seem to recognise only the residents. Against all odds of the local authorities. This article aims to draw attention to some problems resulting from irresponsible planning, from the perspective of local community.

8

Kinetic description of microwave Raman regime free-electron laser in the presence of helical wiggler and guiding magnetic fields

Mishra P. K.

Optica Applicata

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2007

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Vol. 37, nr 1-2

195-204

EN

A full dispersion relation obtained for free-electron laser by kinetic approach based on the method of characteristics in the presence of circularly polarized, periodic, static helical wiggler magnetic field and guide magnetic field incorporating the detailed relativistic particle trajectories is reduced to Raman regime approximations. The temporal and spatial growth rates are evaluated in microwave region. A detailed analysis has been done for temporal and spatial growth rates in Raman regime, especially for microwave region. The spatial growth rate is more than that of temporal growth. The results have been compared with available results obtained by other techniques.