Historical Aerial Photographs and a Geographic Information System (GIS) to Determine Effects of Long-Term Water Level Fluctuations on Wetlands along the St. Marys River, Michigan, USA

Author(s):  
Donald Williams ◽  
John Lyon
2020 ◽  
Vol 25 (3) ◽  
pp. 267-273
Author(s):  
András Tóth

AbstractFrom its beginning until today the Hungarian hydrocarbon industry has suffered more than seventy bigger accidents where intervention of the fire service and thorough examination was required. In the article the author presents the short analysis of accidents that were collected, systemized, and entered into database during the research, and their integration into the Geographic Information System (GIS). Based on the finished database, with the extended list of the locations’ GPS coordinates, the accidents will be entered into the ArcMap application. The publication of the accidents will be done with the help of Arcgis Viewer for Flex – Application Builder program. Following the GIS placement of accidents, testing, drawing conclusions and summarization are the main goals. The next step will be the preparation for assigning the database to the Disaster Management Decision Support Geographic Information System. Following the international publication, the long-term goal is the connection of each country’s files of dangerous industrial activities that were collected by researchers into one common database.


2013 ◽  
Vol 457-458 ◽  
pp. 1220-1223
Author(s):  
Horng Cherng Lai ◽  
Ting Sung Yeh ◽  
Jen Huan Chang ◽  
Yen Kuang Yen ◽  
Huei Tau Ouyang ◽  
...  

The most desired disaster prevention in Taiwan has to be typhoon; therefore there is a saying good weather, good life. The government does everything to prevent nature disaster, preparedness, response and recovery, especially on typhoon flooding survey. In order to conduct instant contingency handling disaster reaction in biggest disaster conditions, the government hopes to control the disaster immediately, and calculate the disaster loss. The main purpose of this study is to build a flood automation system. Apply auto-recording water level monitoring system (internal or external water) from water stations to collect stage data, and integrate Geographic Information System by the terrain grid computing, then obtain the instant scope of inundation and flood depth. Together with the instant rainfall and forecast to achieve the effectiveness of the flood watch or warning, then we should possibly control the instant information for the anticipation of the flood disaster. Taking it further with the Flood Security Plan, we have the best reference for decision-making use in the Emergency Response Center. The study area is located in Yilan County, the most sensitive flooded region, to set up immediate foregoing typhoon instant information system or so-called flood automation system, and then by several times of investigations and post-disaster flood scar volume measured we completely record ground hydrological information, and calibrate it with water level gauges built by Taiwan National Typhoon and Flood Research Center and AWRSIP weather telemetry information platform of synthetic aperture radar images on the flooded scope and depth. The concept of flood automation system is based on the fact that the occurrence and distribution of flood is not merely a product of chance, but the result of a combination of climatic, hydrologic, geologic, topographic and soil-forming factors that together form an integrated dynamic system, thus, through a combination of real-time rainfall forecast, flood recording, automation requirement, Geographic Information System, flood warning, instant data transmission and the internet, be setting up an ideal typhoon instant information system, which can become high accurate and be suitable for easy use of flooded areas, in order to achieve sustainable development in those areas.


2007 ◽  
Author(s):  
Κωνσταντίνος Δανιηλίδης

Στις μέρες μας, οι Τεχνολογίες Γεωπληροφορικής περιστρέφονται γύρω από εμπορικά λογισμικά & έτοιμες λύσεις, ικανοποιώντας έτσι σε αρκετά μεγάλο βαθμό τις λειτουργικές απαιτήσεις Διαλειτουργικών Οργανισμών που διαχειρίζονται χωρικά δεδομένα. Η σημερινή, όμως, τεχνολογία του Γεωγραφικού Συστήματος Πληροφοριών, Geographic Information System (GIS) επιτρέπει σε μια κολοσσιαία Χωρική Βάση Δεδομένων (Β.Δ.) ενός Οργανισμού - που απαντάται σε πολυχρηστικό περιβάλλον εργασίας - περιορισμένες λειτουργίες στην από κοινού επεξεργασία τόσο της ίδιας της Β.Δ. εν γένει, όσο και κοινών εγγραφών ειδικότερα. Μία τέτοια κοινή επεξεργασία συγχωρείται στις κλασσικές GIS υλοποιήσεις μόνο σε ένα επίπεδο συνεργασίας μεταξύ των χρηστών με τρόπο, ωστόσο, που καθιστά την επεξεργασία της ίδιας εγγραφής «συγκρουσιακή», ώστε να απαιτείται επίλυση από τρίτο χρήστη. Το φαινόμενο αυτό συναντάται συχνότατα σε Οργανισμούς που διέπονται από την Αρχή της Διαλειτουργικότητας, της διανομής δηλαδή της πληροφορίας τους εντός και εκτός Οργανισμού, και οι οποίοι διαχειρίζονται κολοσσιαία sets χωρικών δεδομένων με συναλλαγές μακρού τύπου (long term transactions). Η παρούσα διατριβή μελετά τις Σύγχρονες Χωρικές Β.Δ. (Spatial Databases) και αναλύει την εφαρμογή τους, ως ένα GIS επιδεκτικό, αυτόνομο, βασισμένο στα διεθνή πρότυπα, το οποίο φυσικά διέπεται από την Αρχή της Χωρικής Διαλειτουργικότητας. Παράλληλα, εξετάζει τα φαινόμενα που δημιουργούνται στις πολυχρηστικές αυτές χωρικές Β.Δ. και εμβαθύνει στην δημιουργία ενός αλγόριθμου: του Αλγόριθμου «FoCHAL» (Free of Conflicts Hierarchic - Altruistic Locking algorithm). Δια του αλγόριθμου FoCHAL γίνεται εφικτή η παράλληλη επεξεργασία κοινών εγγραφών από διαφορετικούς χρήστες, διατηρουμένης ακεραίας της σειριακότητας της Β.Δ. με κατάλληλη επίλυση των προβλημάτων και, μάλιστα, πλήρως αυτοματοποιημένα. Η νέα αυτή Τεχνολογία Γεωπληροφορικής εφαρμόζεται στο επιχειρησιακό μοντέλο λειτουργίας της χωρικής Β.Δ. του Εθνικού Κτηματολογίου ως ένα ανοιχτό και διαλειτουργικό GIS. Δηλαδή εκεί ακριβώς όπου αναδεικνύεται σαφέστατα ο αναπτυξιακός χαρακτήρας του Συστήματος του Εθνικού Κτηματολογίου, γεγονός που συνεπάγεται τεράστια λειτουργικά, κοινωνικοπολιτικά & οικονομικά οφέλη. Το σημαντικότερο είναι η διατήρηση της σειριακότητας της χωρικής Β.Δ. και η επίτευξη της «On-Line» λειτουργίας της. Αυτή η λειτουργία επιτρέπει την ανάπτυξη ορθολογισμένων SubLIS, διαδικασία που πηγάζει από τη χωρική διαλειτουργικότητα κι επιτρέπει την επίτευξη της ηλεκτρονικής διακυβέρνησης.


Author(s):  
James S. Aber

Eastern Kansas has an active geomorphic regime dominated by stream erosion, which is strongly influenced by bedrock structure. Alluvial deposits of chert gravel of presumed Neogene age are widespread and abundant on hill tops and high terraces throughout the region. Many of these gravels contain quartzite and other exotic pebbles derived from western sources. Geographic information system (GIS) techniques are used to document and analyze the spatial distribution of upland chert gravel deposits. On this basis, Neogene drainage routes may be recognized for the ancestral Arkansas, ancestral Verdigris, ancestral Neosho, and ancestral Marais des Cygnes. These drainages bore little resemblance in position or direction to the modern rivers. Stream captures, valley entrenchment, and wholesale inversion of topography led to the modern drainage systems. During entrenchment, streams have shifted systematically southward and eastward, possibly as a result of long-term and continuing crustal tilting (neotectonism) down toward the Gulf of Mexico.  


2019 ◽  
Vol 9 (2) ◽  
pp. 187-194
Author(s):  
Sofia Scăunaș ◽  
C. Păunescu ◽  
G.-L. Merciu

Abstract The paper topic is related to the use of Geographic Information System and remote sensing in analysing the spatio-temporal dynamics of a post-socialist city. The purpose of this study is to highlight the changes in the land use of the Băneasa neighbourhood, located in the northern part of the capital city of Romania. The changes have been analysed from the nineteenth century to the present. The authors used historical mapping using old maps, as well as digitizing aerial photographs using the Geographic Information System. There has been an accelerated territorial evolution in the last 70 years, marked by the impact of the socialist policy of intensive urbanization, when the urban-type systematization was applied through the construction of collective dwellings, to which were added some important industrial units. After 1990, the dynamics of the tertiary sector generated significant changes in the physiognomy of the urban landscape, observing the increase of the built space (commercial spaces, new residential areas) at the expense of green spaces, tree nurseries, greenhouses and industrial sites. The most recent stage of evolution, however, has brought the most profound changes in the landscape of the Băneasa district, as a result of the new political and socio-economic context, marked by the collapse of communism. Thus, in the last 30 years, the capital city has registered an uncontrolled urban growth dynamic, this being characteristic of other large urban centres at the national level as well favoured by less strict, inconsistent and incomplete urban legislation.


2018 ◽  
Vol 31 ◽  
pp. 11019 ◽  
Author(s):  
Wirdah Anugrah ◽  
Suryono Suryono ◽  
Jatmiko Endro Suseno

Management of water resources based on Geographic Information System can provide substantial benefits to water availability settings. Monitoring the potential water level is needed in the development sector, agriculture, energy and others. In this research is developed water resource information system using real-time Geographic Information System concept for monitoring the potential water level of web based area by applying rule based system method. GIS consists of hardware, software, and database. Based on the web-based GIS architecture, this study uses a set of computer that are connected to the network, run on the Apache web server and PHP programming language using MySQL database. The Ultrasound Wireless Sensor System is used as a water level data input. It also includes time and geographic location information. This GIS maps the five sensor locations. GIS is processed through a rule based system to determine the level of potential water level of the area. Water level monitoring information result can be displayed on thematic maps by overlaying more than one layer, and also generating information in the form of tables from the database, as well as graphs are based on the timing of events and the water level values.


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