Climate-induced Vulnerability Assessment: A Case of Seti River Corridor, Central Nepal

There are greater consensus among the climate scientists that the global warming and associated climate change has triggered the hazards and increased community vulnerability in the recent years. As river corridors are the active resources and energy flow regimes, the vulnerability concentrated along the river corridors are likely to hamper the regulatory mechanisms of biological, physical and anthropogenic systems. This paper focuses on multi-criteria based vulnerability mapping along the Seti River corridor. For the purpose, different physical and social parameters like altitude, aspect, slope, climatic condition, land-use and land-cover, and population distribution and its demographic characteristics were used. All measurable parameters were assigned with intensity of occurrences of impact factor according to their respective scales. The domination of those impact factors was measured with respect to the total area of Village Development Committee/Municipality scale (the lowest administrative units). The sum of the computed value was classified in five-point scale in relative degree of severity, i.e. very high, high, medium, low and very low. The integration process was based on GIS Environment and all the data were spatially referenced. The results show up-stream region of the corridor is at higher risk, where 5.1% of the total area is under the very high category. The mid-stream area covers 2.2% under very high category, and none of the down-stream area falls within this category. The combination of both physiographic complexities and human activities determines the vulnerability of the landscape. The outcome of the mapping is recommended for adoption during disaster risk reduction and management and climate change adaptation practices at the community level.

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The Influence of Climate Change on River Corridors in Drylands: The Case of the Tehuacán-Cuicatlán Biosphere Reserve

Frontiers in Environmental Science ◽

10.3389/fenvs.2021.681703 ◽

2021 ◽

Vol 9 ◽

Author(s):

Jacinto Elías Sedeño-Díaz ◽

Eugenia López-López

Keyword(s):

Climate Change ◽

Biosphere Reserve ◽

Warming Trend ◽

Dry Season ◽

World Heritage Site ◽

Landsat 8 ◽

Temperature Anomalies ◽

Salado River ◽

River Corridors ◽

River Corridor

The Tehuacán-Cuicatlán Biosphere Reserve, Mexico (TCBR) is the southernmost arid or semi-arid zone with the highest biodiversity in North America and is a UNESCO World Heritage site. Two main hydrographic streams cross the TCBR, the Salado River (an endogenous river) and the Grande River (an exogenous river). This study investigated temperature anomalies over the past 40 years. We analyzed potential differences between sub-basins and riparian areas on both streams using various indices, namely the Global Warming Index (GWI), Normalized Difference Vegetation Index (NDVI), Normalized Difference Water Index (NDWI), and Normalized Difference Drought Index (NDDI), and analyzed the potential relationship of these indices with climate change. Time series of satellite-based precipitation (June 2000–December 2020) and air temperature (January 1980–December 2020) were analyzed. A set of Landsat 8 OLI TIRS imagery from the driest and wettest months (2013–2020) was used to estimate NDVI, NDWI, and NDDI. These indices were evaluated separately for the sub-basins and river corridors in the dry and rainy seasons. The precipitation records indicate that in the Grande river sub-basin, precipitation is higher than in the Salado river sub basin. Normalized temperature anomalies and the GWI suggest a warming trend from 1994 to 2020, increasing up to 0.86°C in the Salado River and 0.52°C in the Grande River. The Grande and Salado sub basins showed significant differences between dry and wet seasons for each index (NDVI, NDWI, and NDDI). A Discriminant Analysis showed that the Salado sub-basin and the Salado River corridor are associated with severe drying conditions in the dry season (highest NDDI values). In the wet season, the Grande River corridor showed intermediate values of NDVI and NDWI but low values of NDDI. The Grande River corridor in the dry season was characterized by intermediate values of NDVI, NDWI, and NDDI. These river corridors provide environmental services in a trade-off with the stream and should be considered biodiversity hotspots. Due to the accentuated warming trend and the lowest precipitation, the Salado River sub-basin showed desertification signs associated with climate change. Both the Salado and the Grande River corridors showed resilience strategies to face climatic conditions.

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Peningkatan Kemampuan Berpikir Kritis Peserta Didik Pada Materi Termokimia Di Sma Pekanbaru Melalui Penerapan Strategi Pembelajaran Process Oriented Guided Inquiry Learning (POGIL)

Talenta Conference Series Science and Technology (ST) ◽

10.32734/st.v2i2.536 ◽

2019 ◽

Vol 2 (2) ◽

Author(s):

Maria Erna ◽

R. Usman Rery ◽

Wiji Astuti ◽

Sulismayati

Keyword(s):

Critical Thinking ◽

Inquiry Learning ◽

Guided Inquiry ◽

Test Technique ◽

Critical Thinking Ability ◽

High Category ◽

Thinking Ability ◽

Process Oriented ◽

Academic Year ◽

Very High

Penelitian ini dilakukan untuk mengetahui peningkatan kemampuan berpikir kritis siswa pada mata pelajaran Termokimia melalui penerapan strategi Process Oriented Guided Inquiry Learning (POGIL) (POGIL) di kelas 11 SMAN 8 Pekanbaru. Penelitian ini menggunakan One Group Pretest-Posttest Design yang diadakan di SMAN 8 Pekanbaru pada tahun akademik 2017/2018. Objek penelitian adalah XI MIA 1 yang terdiri dari 32 siswa. Pengumpulan data siswa menggunakan teknik tes pretest dan posttest. Keberhasilan pembelajaran dalam meningkatkan kemampuan berpikir kritis siswa ditunjukkan oleh peningkatan kriteria berpikir kritis dari hasil pretest dan posttest yang menganalisis persentase skor berpikir kritis. Hasil penelitian menunjukkan bahwa ada peningkatan kemampuan berpikir kritis siswa. Siswa mengalami peningkatan dari kategori berpikir kritis sangat rendah ke kategori sangat tinggi dengan persentase 15,625%, dari kategori rendah ke kategori sangat tinggi adalah 40,625%, dari kategori rata-rata ke kategori sangat tinggi adalah 9,375%, dari kategori sangat rendah hingga kategori tinggi adalah 12,5%, dan dari kategori rendah ke kategori tinggi adalah 21,875%. Berdasarkan analisis data, dapat disimpulkan bahwa penerapan strategi Process Oriented Guided Inquiry Learning (POGIL) mampu meningkatkan kemampuan berpikir kritis siswa pada mata pelajaran Termokimia di SMAN 8 Pekanbaru. The research was held to determine the improvement of student’s critical thinking ability on Thermochemistry subject through implementation of Process Oriented Guided Inquiry Learning (POGIL) strategy at 11th Grade of SMAN 8 Pekanbaru. This research used One Group Pretest-Posttest Design which held in SMAN 8 Pekanbaru at academic year of 2017/2018. The object of research is XI MIA 1 that consist of 32 students. The data collection of students used test technique which are pretest and posttest. The success of learning in improvement of student’s critical thinking ability is showed by improvement of criteria of critical thinking from pretest and posttest results that analyzed the score percentage of critical thinking. The result of research showed that there was an improvement of student’s critical thinking ability. The students have an increase from the very low category of critical thinking to very high category with percentage of 15,625%, from low category to very high category is 40,625%, from average category to very high category is 9,375%, from very low category to high category is 12,5%, and from low category to high category is 21,875%. Based on data analyze, it can be concluded that implementation of Process Oriented Guided Inquiry Learning (POGIL) strategy is able to improve student’s critical thinking ability on Thermochemistry subject at SMAN 8 Pekanbaru.

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PENGARUH KONDISI EKOSISTEM DARAT KORIDOR SUNGAI TERHADAP DANAU RAWA PENING

Jurnal Rekayasa Lingkungan ◽

10.29122/jrl.v4i2.1855 ◽

2018 ◽

Vol 4 (2) ◽

Author(s):

E. Hanggari Sittadewi

Keyword(s):

Water Quality ◽

Water Hyacinth ◽

River Corridors ◽

River Corridor ◽

Environment Degradation

Environment degradation in Rawa Pening’s lake is caused of descend lake’s functions for some potentions and activities around the lake. Some problems in the Rawa Pening’s lake has emerged i.e : decrease water quality of lake, abundance of water hyacinth growth and increase sediment in the bottom lake. A research about infl uences of land ecosystem on Panjang and Galeh river corridors for Rawa Pening’s lake has been done. Two rivers named Galeh and Panjang are the largest water contribution in Rawa Pening’s lake. That caused the land characteristic ecosystem of that river corridors gives infl uences in the Rawa Pening’s lake.Key words: land ecosystem, river corridor, water contribution, Rawa Pening Lake.

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التغير المناخي واثره في المقنن المائي لمحصول العنب في محافظة ديالى

Journal of Education College Wasit University ◽

10.31185/eduj.vol1.iss34.800 ◽

2019 ◽

Vol 1 (34) ◽

pp. 391-422

Author(s):

اشواق حسن حميد صالح

Keyword(s):

Climate Change ◽

Statistical Analysis ◽

Wind Speed ◽

Extreme Temperature ◽

Solar Brightness ◽

The Subject ◽

Climate Station ◽

The Times ◽

High Level ◽

Very High

Climate change and its impact on water resources is the problem of the times. Therefore, this study is concerned with the subject of climate change and its impact on the water ration of the grape harvest in Diyala Governorate. The study was based on the data of the Khanaqin climate station for the period 1973-2017, (1986-2017) due to lack of data at governorate level. The general trend of the elements of the climate and its effect on the water formula was extracted. The equation of change was extracted for the duration of the study. The statistical analysis was also used between the elements of the climate (actual brightness, normal temperature, micro and maximum degrees Celsius, wind speed m / s, relative humidity% The results of the statistical analysis confirm that the water ration for the study area is based mainly on the X7 evaporation / netting variable, which is affected by a set of independent variables X1 Solar Brightness X4 X5 Extreme Temperature Wind Speed 3X Minimal Temperature and Very High Level .

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Developing a Three-Tier Diagnostic Instrument on Chemical Equilibrium (TT-DICE)

Educación Química ◽

10.22201/fq.18708404e.2020.3.72133 ◽

2020 ◽

Vol 31 (3) ◽

pp. 84

Author(s):

J. Jusniar ◽

E. Effendy ◽

Endang Budiasih ◽

S. Sutrisno

Keyword(s):

High School Students ◽

Chemical Equilibrium ◽

Diagnostic Instrument ◽

Difficulty Level ◽

Literature Study ◽

School Students ◽

Development Models ◽

High Category ◽

Third Stage ◽

Very High

This study aims to develop a Three-tier Diagnostic Instrument on Chemical Equilibrium (TT-DICE) to diagnose high school students’ misconceptions related to this topic. TT-DICE consists of thirty items, asking for students’ answers, reasonings, and levels of confidence. Three-stages development models developed by Treagust applied in developing TT-DICE. First-stage was a literature study to analyze the main concepts and students’ misconceptions in CE. The next step is the development of the TT-DICE prototype, consisting of item development, preliminary experiments, interviews, and revisions. The third stage of validity checking starts with content validation by experts and practitioners. A field test conducted to determine the reliability and quality variables are supporting TT-DICE items. These variables are Item Validity (IV), Difficulty Level (DL), Discrimination Index (DI), and effectiveness of distractors. Content validity by validators showed that the TT-DICE is valid with a very high category (96.1%). The results of item validity show that 88.9% of the items are valid. Testing of DL, DI, and the effectiveness of distractors in general, shows a good category. The Reliability of the three-tiers TTDICE using Alpha Cronbach is a high and very high category, respectively (0.83, 0.81 & 0.91). The overall validity test results also concluded if the TT-DICE is valid, reliable, and suitable to diagnose misconceptions of Chemical Equilibrium.

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Flood vulnerability mapping using the spatial multi-criteria evaluation (SMCE) method in the Minraleng Watershed, Maros Regency, South Sulawesi

E3S Web of Conferences ◽

10.1051/e3sconf/202015301004 ◽

2020 ◽

Vol 153 ◽

pp. 01004

Author(s):

Muhammad Fadhil ◽

Yoanna Ristya ◽

Nahra Oktaviani ◽

Eko Kusratmoko

Keyword(s):

Information System ◽

Rainfall Intensity ◽

Physical Factors ◽

Relative Importance ◽

Flood Vulnerability ◽

South Sulawesi ◽

Multi Criteria Evaluation ◽

Gis Environment ◽

Very High ◽

Vulnerable Zones

This study focuses on the assessment of flood-vulnerable areas in the Minraleng watershed, Maros Regency, where the area experiences floods every year. Spatial analysis in the Geographic Information System (GIS) environment has been applied to estimate flood-vulnerable zones using six relevant physical factors, such as rainfall intensity, slope, Elevation, distance from the rivers, land use and soil type. The relative importance of physical factors has been compared in paired matrices to obtain weight values using the Spatial Multi-Criteria Evaluation (SMCE) method. The result showed that the areas located in Camba sub-district had the high vulnerability. The region with a high and very high vulnerability to flood were spread with an area of 436 ha (0,84 %) and 6.168 ha (11.8%).

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GIS Based Approach for Vulnerability Assessment of the Karnataka Coast, India

Advances in Civil Engineering ◽

10.1155/2016/5642523 ◽

2016 ◽

Vol 2016 ◽

pp. 1-10 ◽

Cited By ~ 7

Author(s):

Akshaya Beluru Jana ◽

Arkal Vittal Hegde

Keyword(s):

Shoreline Change ◽

Vulnerability Index ◽

Tidal Range ◽

Coastal Zones ◽

Remotely Sensed Data ◽

Coastal Vulnerability Index ◽

Karnataka State ◽

Administrative Units ◽

2004 Tsunami ◽

Very High

The coastal zones are highly resourceful and dynamic. In recent times, increased events of tropical cyclones and the devastating impact of the December 2004 tsunami have brought forth the importance of assessing the vulnerability of the coast to hazard-induced flooding and inundation in coastal areas. This study intends to develop coastal vulnerability index (CVI) for the administrative units, known astalukasof the Karnataka state. Seven physical and geologic risk variables characterizing the vulnerability of the coast, including rate of relative sea level change, historical shoreline change, coastal slope, coastal regional elevation, mean tidal range, and significant wave height derived using conventional and remotely sensed data, along with one socioeconomic parameter “population,” were used in the study. A total of 298 km of shoreline are ranked in the study. It was observed that about 68.65 km of the shoreline is under very high vulnerable category and 79.26 km of shoreline is under high vulnerable category. Of the remaining shoreline, 59.14 km and 91.04 km are of moderate and low vulnerable categories, respectively.

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Open source riverscapes: Analyzing the river corridor of the Naryn River in Kyrgyzstan based on open access data

10.5194/egusphere-egu21-4735 ◽

2021 ◽

Author(s):

Florian Betz ◽

Magdalena Lauermann ◽

Bernd Cyffka

Keyword(s):

Remote Sensing ◽

Open Access ◽

Large Scale ◽

Data Sets ◽

Hierarchical Systems ◽

Geomorphological Mapping ◽

Open Access Data ◽

Access Data ◽

River Corridors ◽

River Corridor

In fluvial geomorphology as well as in freshwater ecology, rivers are commonly seen as nested hierarchical systems functioning over a range of spatial and temporal scales. Thus, for a comprehensive assessment, information on various scales is required. Over the past decade, remote sensing based approaches have become increasingly popular in river science to increase the spatial scale of analysis. However, data-scarce areas have been mostly ignored so far despite the fact that most remaining free flowing &#8211; and thus ecologically valuable &#8211; rivers worldwide are located in regions characterized by a lack of data sources like LiDAR or even aerial imagery. High resolution satellite data would be able to fill this data gap, but tends to be too costly for large scale applications what limits the ability for comprehensive studies on river systems in such remote areas. This in turn is a limitation for management and conservation of these rivers.In this contribution, we suggest an approach for river corridor mapping based on open access data only in order to foster large scale geomorphological mapping of river corridors in data-scarce areas. For this aim, we combine advanced terrain analysis with multispectral remote sensing using the SRTM-1 DEM along with Landsat OLI imagery. We take the Naryn River in Kyrgyzstan as an example to demonstrate the potential of these open access data sets to derive a comprehensive set of parameters for characterizing this river corridor. The methods are adapted to the specific characteristics of medium resolution open access data sets and include an innovative, fuzzy logic based approach for riparian zone delineation, longitudinal profile smoothing based on constrained quantile regression and a delineation of the active channel width as needed for specific stream power computation. In addition, an indicator for river dynamics based on Landsat time series is developed. For each derived river corridor parameter, a rigor validation is performed. The results demonstrate, that our open access approach for geomorphological mapping of river corridors is capable to provide results sufficiently accurate to derive reach averaged information. Thus, it is well suited for large scale river characterization in data-scarce regions where otherwise the river corridors would remain largely unexplored from an up-to-date riverscape perspective. Such a characterization might be an entry point for further, more detailed research in selected study reaches and can deliver the required comprehensive background information for a range of topics in river science.

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Minat Mengikuti Ekstrakurikuler Bola Voli Siswa Smp Negeri 3 Satu Atap Karangsambung Kecamatan Karangsambung Tahun Ajaran 2019/2020

JUMORA: Jurnal Moderasi Olahraga ◽

10.53863/mor.v1i01.132 ◽

2021 ◽

Vol 1 (01) ◽

pp. 35-44

Author(s):

Alfiah Rizqi Azizah ◽

Eko Pujo Sudarto

Keyword(s):

Reliability Coefficient ◽

Survey Method ◽

Research Subject ◽

Descriptive Research ◽

High Category ◽

Quantitative Descriptive ◽

Very High

AbstrakTujuan dalam penelitian ini untuk mengetahui seberapa besar faktor-faktor yang dapat mempengaruhi minat siswa-siswi dalam mengikuti ektrakurikuler bola voli di SMP N 3 Satu Atap Karangsambung. Penelitian ini merupakan penelitian deskriptif menggunakan metode survei. Subjek penelitian yang digunakan adalah siswa yang mengikuti ektrakurikuler bola voli di SMP N 3 Satu Atap Karangsambung sebanyak 19 anak. Intrumen yang digunakan berupa angket, dengan koefisien reliabilitas sebesar 0,953 dan untuk menganalisis data digunakan statistik deskriptif kuantitatif dengan persentase. Hasil penelitian menunjukkan minat siswa dalam mengikuti ektrakurikuler bola voli di SMP N 3 Satu Atap Karangsambung sebagian besar berada pada kategori tinggi sebesar 57,80 %, diikuti pada kategori rendah sebesar 21,2 %, kemudian kategori sangat tinggi sebesar 10,5 %, dan kategori sangat rendah sebesar 10,5 %. Jadi dapat disimpulkan minat siswa dalam mengikuti ekstrakurikuler bola voli di SMP N 3 Satu Atap Karangsambung sebagian besar berada pada kategori tinggi.Kata kunci : Minat, Ekstrakurikuler Bola voli,AbstractThe objective of this research is to determine how much the factors that can affect the interest of students in joining volleyball extracurricular at SMPN 3 Satu Atap Karangsambung. This research is descriptive research using survey method. The research subject used were students who took volleyball extracurricular at SMPN 3 Satu Atap Karangsambung as many as 19 students. The instrument used was questionnaire, with a reliability coefficient of 0.953 and to analyze the data used quantitative descriptive statistic with percentage. The results show that students' interest in joining volleyball extracurricular at SMPN 3 Satu Atap Karangsambung is mostly in the high category at 57.80%, followed by the low category at 21.2%, then the very high category at 10.5%, and the very low category at 10.5%. So, it can be concluded that students' interest in joining volleyball extracurricular at SMPN 3 Satu Atap Karangsambung is mostly in the high category.Keywords: Interest, Volleyball Extracurricular

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What the past can say about the present and future of fire

Quaternary Research ◽

10.1017/qua.2020.48 ◽

2020 ◽

Vol 96 ◽

pp. 66-87

Author(s):

Jennifer R. Marlon

Keyword(s):

Climate Change ◽

Terrestrial Ecosystems ◽

Combustion Products ◽

Temperature Changes ◽

The Public ◽

The Past ◽

Warming Climate ◽

Highly Sensitive ◽

In Fire ◽

Very High

AbstractWildfires are an integral part of most terrestrial ecosystems. Paleofire records composed of charcoal, soot, and other combustion products deposited in lake and marine sediments, soils, and ice provide a record of the varying importance of fire over time on every continent. This study reviews paleofire research to identify lessons about the nature of fire on Earth and how its past variability is relevant to modern environmental challenges. Four lessons are identified. First, fire is highly sensitive to climate change, and specifically to temperature changes. As long as there is abundant, dry fuel, we can expect that in a warming climate, fires will continue to grow unusually large, severe, and uncontrollable in fire-prone environments. Second, a better understanding of “slow” (interannual to multidecadal) socioecological processes is essential for predicting future wildfire and carbon emissions. Third, current patterns of burning, which are very low in some areas and very high in others—are often unprecedented in the context of the Holocene. Taken together, these insights point to a fourth lesson—that current changes in wildfire dynamics provide an opportunity for paleoecologists to engage the public and help them understand the potential consequences of anthropogenic climate change.

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