Geographia Technica最新文献_第6页

A DIRECT METHOD TO DELIMIT WEIR POOLS 一种直接划分堰池的方法

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Geographia Technica Pub Date : 2022-07-26 DOI: 10.21163/gt_2022.172.05

F. Donati

引用次数: 1

ESTIMATION OF PARTICULATE MATTER LESS THAN 10 MICRONS VOLUME THROUGH VARIOUS FORMATS OF SPATIAL INTERPOLATION METHODS 通过各种形式的空间插值方法估算体积小于10微米的颗粒物

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Geographia Technica Pub Date : 2022-07-20 DOI: 10.21163/gt_2022.172.03

Jumpol Itsarawisut, T. Laosuwan

引用次数: 0

A LOW-COST DRONE MAPPING AND SIMPLE PARTICIPATORY GIS TO SUPPORT THE URBAN FLOOD MODELLING 低成本的无人机测绘和简单的参与式GIS支持城市洪水建模

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Geographia Technica Pub Date : 2022-07-20 DOI: 10.21163/gt_2022.172.04

Aditya Saputra, A. Sigit, Y. Priyana, Andy Muhammad Abror, A. Sari, Oky Nursetiyani

引用次数: 0

EARLY WARNING SYSTEM BASED ON HISTORICAL COASTAL FLOOD EVENTS IN SEMARANG CITY, INDONESIA 基于印尼森马朗市历史海岸洪水事件的预警系统

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Geographia Technica Pub Date : 2022-07-16 DOI: 10.21163/gt_2022.172.02

Fitriana Nur Indah Sari, D. Sugianto, Kunarso Kunarso

引用次数: 0

ESTABLISHING SPATIAL DISTRIBUTIONS OF DROUGHT PHENOMENA ON CULTIVATION SEASONS USING THE SWAT MODEL 利用SWAT模型建立栽培季节干旱现象的空间分布

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Geographia Technica Pub Date : 2022-05-31 DOI: 10.21163/gt_2022.172.01

H. Prasanchum, Nutthasit Tumma, Worapong Lohpaisankrit

{"title":"ESTABLISHING SPATIAL DISTRIBUTIONS OF DROUGHT PHENOMENA ON CULTIVATION SEASONS USING THE SWAT MODEL","authors":"H. Prasanchum, Nutthasit Tumma, Worapong Lohpaisankrit","doi":"10.21163/gt_2022.172.01","DOIUrl":"https://doi.org/10.21163/gt_2022.172.01","url":null,"abstract":": Due to global climate change, drought phenomena are becoming longer. As a result, water availability is insufficient to meet demand for agriculture during the cultivation seasons and many areas have affected by drought. These can cause difficulties in water resources management. The main objectives of this study were to establish the spatial distribution of drought phenomena at sub-basin scales in the Lam Khan Chu and Lam Nam Chi Part II watersheds, which is the major headwater of the Chi River Basin, Thailand. The Soil and Water Assessment Tool (SWAT) model was used to synthesize streamflow data at the sub-basins of the watersheds. To estimate drought severity, the Streamflow Drought Index (SDI) was computed from the time series of the synthesized streamflow data during 2008 to 2019. The simulated streamflow of the SWAT model was acceptable based on the R 2 , Nash-Sutcliffe Efficiency (NSE) and Percent bias (PBIAS) reaching good levels in both calibration and verification. According to the SDI calculation, the most severe drought in the study period was in the year 2016. During January and April of 2016, the affected areas of about 3%, 30%, 14%, 30 and 23% of the study area were identified as none, mild, moderate, severe and extreme droughts, respectively. The integration of the hydrological model and drought index to monitor drought severity in space and time will be a useful tool for assessing drought severity. Moreover, the results can support managers for water resources management.","PeriodicalId":45100,"journal":{"name":"Geographia Technica","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49073120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

3D MODELLING OF BULDINGS AND URBAN AREAS USING GRASSHOPPER AND RHINOCERSOS 使用蚱蜢和犀牛对建筑物和城市区域进行3d建模

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Geographia Technica Pub Date : 2022-03-25 DOI: 10.21163/gt_2022.171.13

D. Costantino, Arianna Grimaldi, M. Pepe

引用次数: 3

COMPARING CHOROPLETH AND GRADUATED SYMBOLS: HOW DIFFERENT MAP TYPES AFFECT PUBLIC UNDERSTANDING IN COVID-19 MAP READING IN BADUNG REGENCY, BALI, INDONESIA 比较等值线和刻度符号:不同地图类型如何影响印度尼西亚巴厘巴东县公众对COVID-19地图阅读的理解

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Geographia Technica Pub Date : 2022-03-24 DOI: 10.21163/gt_2022.171.12

Tri Tanami Sukraini, I. M. A. Yasa, P. Wiguna

{"title":"COMPARING CHOROPLETH AND GRADUATED SYMBOLS: HOW DIFFERENT MAP TYPES AFFECT PUBLIC UNDERSTANDING IN COVID-19 MAP READING IN BADUNG REGENCY, BALI, INDONESIA","authors":"Tri Tanami Sukraini, I. M. A. Yasa, P. Wiguna","doi":"10.21163/gt_2022.171.12","DOIUrl":"https://doi.org/10.21163/gt_2022.171.12","url":null,"abstract":"Information on COVID-19 is vital in protecting the entire community. As the diffusion pattern changes rapidly over time, originally simple data must be presented differently to provide more representative and quickly readable information. Relevant data are now offered in maps to support the public dissemination of COVID-19 information, with Choropleth and Graduated Symbols being the most common map types. This research was the first to analyze community’s map reading skills, particularly in interpreting or understanding Indonesia’s COVID-19 case distribution portrayed on the map. To test both map types, an online questionnaire was sent to respondents selected by random sampling from people living in Badung Regency. Then, they were given 11 tasks, namely to identify, find extreme values, differentiate, retrieve values, compare, interpret, categorize, group, sort, associate, and locate information contents on both maps. Then, chi-squared, Cramer's V, and Mann-Whitney U tests were conducted to statistically analyze three aspects: accuracy, time, and level of difficulty. The results showed that the choropleth map was easier to read than the graduated symbols. Furthermore, the null hypothesis (H0) was rejected, which means there is a correlation between map type and community’s ability to read and understand maps. © 2022, Asociatia Geographia Technica. All rights reserved.","PeriodicalId":45100,"journal":{"name":"Geographia Technica","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46044648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

SPATIAL VARIATION OF NO2 LEVELS DURING THE COVID-19 PANDEMIC IN THE BALI TOURISM AREA 新冠肺炎疫情期间巴厘旅游区NO2水平的空间变化

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Geographia Technica Pub Date : 2022-03-23 DOI: 10.21163/gt_2022.171.11

I. Sunarta, M. Saifulloh

{"title":"SPATIAL VARIATION OF NO2 LEVELS DURING THE COVID-19 PANDEMIC IN THE BALI TOURISM AREA","authors":"I. Sunarta, M. Saifulloh","doi":"10.21163/gt_2022.171.11","DOIUrl":"https://doi.org/10.21163/gt_2022.171.11","url":null,"abstract":"NO2 levels that exceed quality standards will negatively impact the environment and human health. The purpose of this study was to determine changes in the content of NO2 temporally. The method used is descriptive quantitative, with data analysis using Geographic Information Systems (GIS) and remote sensing data extraction using Google Earth Engine (GEE). The remote sensing data used is Sentinel 5p – TROPOMI whose sensors have the ability to detect air pollution. The results of this study indicate the occurrence of different variations during the Covid-19 Pandemic in the Bali Tourism Area, decreasing or increasing NO2 levels. The decrease in NO2 levels in the air is due to reduced human activities outside the home due to the implementation of the Indonesian Government's policies in the form of Large-Scale Restrictions, Work From Home (WFH), and the religious traditions of Hindus in Bali (Nyepi Day on March 25, 2020). NO2 levels increase again after a long holiday in Indonesia on November-December 2020, due to the large number of tourists visiting Bali Province. The arrival of these tourists increases human activities around the tourism area, such as opening hotels, restaurants, and means of land, sea, and air transportation. Tourism areas tend to have high building density and population. Thus, making green open space low. Whereas green open space is very useful in absorbing air pollution, it is recommended to add green open space or revegetation in every hotel building to maintain good air quality. © 2022, Asociatia Geographia Technica. All rights reserved.","PeriodicalId":45100,"journal":{"name":"Geographia Technica","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48812427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

PHYSICAL DRIVERS OF THE 2013 MARINE HEATWAVE IN THE SEAS OF THE SOUTHERN JAVA-NUSA TENGGARA 2013年爪哇南部海域海洋热浪的物理驱动因素

IF 0.7

Geographia Technica Pub Date : 2022-03-22 DOI: 10.21163/gt_2022.171.10

T. Maulida, A. Wirasatriya, D. Ismunarti, A. Puryajati

{"title":"PHYSICAL DRIVERS OF THE 2013 MARINE HEATWAVE IN THE SEAS OF THE SOUTHERN JAVA-NUSA TENGGARA","authors":"T. Maulida, A. Wirasatriya, D. Ismunarti, A. Puryajati","doi":"10.21163/gt_2022.171.10","DOIUrl":"https://doi.org/10.21163/gt_2022.171.10","url":null,"abstract":"Marine heatwave (MHW) is an extreme phenomenon of warm sea surface temperature anomaly that has a destructive impact on the marine ecosystem and organisms. This phenomenon increases every year in duration, frequency, and area due to the global warming. Almost all of the world's oceans have experienced MHW, including in the seas of the southern Java-Nusa Tenggara. The lack of detailed research in this area motivated us to analyze MHW drivers. MHW was identified with the 99th percentile method and duration of ≥ 5 days as a threshold by using blended product of SST data. In 2013, an MHW event was identified in the seas of the southern Java-Nusa Tenggara. This MHW lasts for 37 days, from 8 June to 14 July. The maximum (mean) intensity of sea surface temperature anomaly reaches 2.60C (1.83C) above climatology with an average area of 36.53 × 10 km. Locally, we found that probably the positive downward shortwave radiation affected this anomaly. Furthermore, a remote process of the propagation of downwelling Kelvin wave during negative Indian Ocean Dipole may also affect this anomaly. The strong westerly wind along the equatorial Indian ocean forms downwelling Kelvin wave that propagates to the southern Java-Nusa Tenggara increasing SST in this area. Key-words: Marine heatwave, Extreme Sea surface temperature, Downwelling Kelvin wave, Remote Sensing, South Java-Nusa Tenggara","PeriodicalId":45100,"journal":{"name":"Geographia Technica","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44182889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

APPLICATION OF 3S TECHNOLOGY IN DISASTER RISK RESEARCH IN THE NORTHERN MOUNTAINOUS REGION OF VIETNAM 3s技术在越南北部山区灾害风险研究中的应用

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Geographia Technica Pub Date : 2022-03-22 DOI: 10.21163/gt_2022.171.09

D. Nguyen, Q. Kieu

引用次数: 1