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12,317 full-text articles. Page 46 of 503.

Vertical And Horizontal Turbidity Variation Across Coral Reef Habitats In Derawan Island: An In-Depth Analysis Using Aaq Rinko Water Quality Profiler, Fajar Dwi Pamungkas, Masita Dwi Mandini Manessa, Supriatna Supriatna, Feby Efriana, Farida Ayu, Novi Adi Susetyo, Kuncoro Teguh Setiawan, Dino Gunawan, Mutia Kamalia Mukhtar, Kintan Maulidina, Muhammad Haidar 2025 Department of Marine Sciences, Faculty of Mathematics and Natural Sciences, Universitas Indonesia, Depok 16424, Indonesia

Vertical And Horizontal Turbidity Variation Across Coral Reef Habitats In Derawan Island: An In-Depth Analysis Using Aaq Rinko Water Quality Profiler, Fajar Dwi Pamungkas, Masita Dwi Mandini Manessa, Supriatna Supriatna, Feby Efriana, Farida Ayu, Novi Adi Susetyo, Kuncoro Teguh Setiawan, Dino Gunawan, Mutia Kamalia Mukhtar, Kintan Maulidina, Muhammad Haidar

Jurnal Geografi Lingkungan Tropik (Journal of Geography of Tropical Environments)

No abstract provided.


Cover And Forewords, Robert M. Ward 2025 Eastern Michigan University

Cover And Forewords, Robert M. Ward

The Geographical Bulletin

Cover and Forewords


Volume 19 Complete Issue, Robert M. Ward 2025 Eastern Michigan University

Volume 19 Complete Issue, Robert M. Ward

The Geographical Bulletin

Volume 19 Complete Issue


Prehistoric Origins Of The Chippewa Indians, Ronald A. Janke 2025 Valparaiso University

Prehistoric Origins Of The Chippewa Indians, Ronald A. Janke

The Geographical Bulletin

This paper investigates the location of precontact Chippewa contacts and the complexities of the geographic environment in which they occurred. Reconstructed land use and settlement maps along with recent archaeological and linguistic research have added new ideas concerning the origin, early migrations, and contacts of the Chippewa Indians. Very little is known about the culture and the area that the Chippewa occupied before the time of European influence. According to the legends and traditions of the Chippewa, they originally inhabited the area next to the Gulf of the St. Lawrence River, near the Atlantic Ocean, and gradually moved westward and …


A Revival: The Visiting Geographical Scientist Program, Alice Rechlin 2025 Valparaiso University

A Revival: The Visiting Geographical Scientist Program, Alice Rechlin

The Geographical Bulletin

A Revival: The Visiting Geographical Scientist Program


The Impact Of A Growth Center On An Agricultural Hinterland: A Case Study Of Taegu, Korea, Soohyun Chon 2025 University of Michigan

The Impact Of A Growth Center On An Agricultural Hinterland: A Case Study Of Taegu, Korea, Soohyun Chon

The Geographical Bulletin

Although the location of large urban centers such as Seoul, Pusan, and Taegu has had a major impact on changes in the surrounding agricultural hinterland, regional differences of agricultural development in Korea have not received much attention until recently (Fig. 1). Keidel, for example, noted that Kyongi-do and Kyongsangnam-do have higher agricultural income levels than the remainder of the country because they produce commercial crops for Seoul and Pusan, respectively.1 More recently, after the construction of a modern highway between these two cities, Chungchongbuk-do and Kyongsangbuk-do provinces emerged as the major suppliers of commercial crops for Seoul and Pusan. If …


An Evaluation Of Planned Settlement In The Bolivian Tropics: The 1974 Plans, Martha A. Works 2025 Arizona State University

An Evaluation Of Planned Settlement In The Bolivian Tropics: The 1974 Plans, Martha A. Works

The Geographical Bulletin

In the early 1960's Bolivia made the first set of attempts at colonization of the lowlands, or Oriente, lying east of the Andes. This effort was largely in response to events that had taken place earlier in the century, namely the Chaco War, the Social Revolution of 1952 and the collapse of the mining economy.1 Colonization schemes were implemented in an attempt to provide enough land for the people, increase opportunities for displaced miners, and to promote national unity by settling the eastern areas of the nation.2 The early colonization projects were concentrated in two areas -the Alto Beni (east …


Editor's Comments, Robert M. Ward 2025 Eastern Michigan University

Editor's Comments, Robert M. Ward

The Geographical Bulletin

As incoming editor, I wish to extend my appreciation to Gamma Theta Upsilon's Board of Directors for their confidence in me, and to the membership for their continuing support of the Society. During recent meetings, the Board decided that Volume 19 should initiate a new format. This has resulted from a policy change that now directs the editor to include materials previously contained in the Newsletter. The Second Vice President will continue to receive these news items from the chapters, prepare them for publication, and send them to me. In this instance, I am pleased to cite the highly professional …


Cover And Forewords, Robert M. Ward 2025 Eastern Michigan University

Cover And Forewords, Robert M. Ward

The Geographical Bulletin

Cover and Forewords


News From The Chapters 1980-81, Robert M. Ward 2025 Eastern Michigan University

News From The Chapters 1980-81, Robert M. Ward

The Geographical Bulletin

News from the Chapters 1980-81


Volume 20 Complete Issue, Robert M. Ward 2025 Eastern Michigan University

Volume 20 Complete Issue, Robert M. Ward

The Geographical Bulletin

Volume 20 Complete Issue


Bending Traditions To Avoid Breaking The Rulesthe Arthur, Illinois Amish, Page Redmond 2025 Illinois State University

Bending Traditions To Avoid Breaking The Rulesthe Arthur, Illinois Amish, Page Redmond

The Geographical Bulletin

When the people of the Amish faith fled religious persecution in Europe and arrived in Pennsylvania about 1727, they came not to start a new life, but to preserve the old ways of living and farming.1 However, the reality of the outside has crept into their sheltered culture in the form of land shortages and higher prices for that land which does exist. These pressures, coupled with the all too constant awareness of the world outside their culture and its many changes and advances, have caused a weakening in some of the once strictly held traditions. From the outside, it …


Rural Development Versus Rural Preservation: Conflicting Usda Land Use Programs And Policies, Susan Oglesbee Burt 2025 University of Michigan

Rural Development Versus Rural Preservation: Conflicting Usda Land Use Programs And Policies, Susan Oglesbee Burt

The Geographical Bulletin

With the mounting cost of farm ownership and operation, and the rapid increase in urbanization, the issue of farmland preservation has come to the forefront in many states, counties, townships, and villages. These factors, combined with inflation, severe fluctuations in the economy, and restrictions in the use of natural resources, have brought about heightened concern on the part of farmers in recent years. Farmers and rural communities are seeking alternative ways to cope with these conditions. Sale of their land to the highest bidder is one option that often results in conversion of prime agricultural land to other uses. The …


Suburban Land-Use Policies And. Community Pressure Groups In Southfield, Michigan, Joseph H. Kogelmann 2025 Eastern Michigan University

Suburban Land-Use Policies And. Community Pressure Groups In Southfield, Michigan, Joseph H. Kogelmann

The Geographical Bulletin

Creation and preservation of affluent suburban communities is dependent upon the existence of political expedients, whose primary function is to insure perpetuation of exclusionary socioeconomic barriers. Local land-use policies, as determined by municipal zoning regulations and building codes, have become mechanisms by which the status quo is maintained. The content of local land-use policies is particularly susceptible to political influence of community pressure groups. These groups are often a major force in the community decision-making process as they seek to mold local public policy in accordance with their own conceptions. Suburban elected officials have been extremely responsive to demands of …


Seasonal And Annual Precipitation Efficiency In The Eastern United States·, Jeffrey T. Lutz 2025 Bureau of Oceans and International

Seasonal And Annual Precipitation Efficiency In The Eastern United States·, Jeffrey T. Lutz

The Geographical Bulletin

PreCipitation efficiency (Pe) is the percentage of the average atmospheric water vapor above a station that is released and falls to earth as measurable preCipitation in a given time period. Pe is a single parameter describing the efficiency of atmospheric mechanisms in releasing moisture. Temporal and spatial variations in Pe are controlled primarily by synoptic atmospheric systems. The relationship between atmospheric systems and seasonal! annual variations in Pe is investigated for the United States east of the Rocky Mountains. Regional variations in seasonal and annual averages of Pe suggest the relative effectiveness of dynamic and thermodynamic preCipitation mechanisms. Basically, the …


Gtu- A Regional Perspective, Leon C. Hallman 2025 Stephen F. Austin State University

Gtu- A Regional Perspective, Leon C. Hallman

The Geographical Bulletin

These listings are indeed similar, both placing emphasis in the same general areas of concern and suggested activity. However, I bel ieve a dichotomy exists, not between GTU's brochure and the Association of College Honor Societies Booklet of Information, 1981-82, but HERE within Gamma Theta Upsilon, an Interna7 tional Geographical Honor Society. Where does it say: recognize academic and mental achievements, recognize excellence of performance, reward and recognize the attainment of scholarship of a superior quality? GTU's stated purposes do not include these ideas or concerns. GTU's purposes are to create interest, to strengthen training, to make geography practical for …


Crucible Of Excellence: The Honor Society, O. Orland Maxfield 2025 UniversIty of Arkansas

Crucible Of Excellence: The Honor Society, O. Orland Maxfield

The Geographical Bulletin

It has been some time since I have heard the rather piquant phrase, "to defend one's honor." Indeed, I do not often hear the word "honor" or read of it in the current mass media. It is as though we take "honor" for granted or it has been relegated to the zone of discard along with integrity and virtue. Perhaps we have become jaundiced by the everyday, commonplace, dishonorable actions of political and business figures, and sometimes even of our closer acquaintances. Think for a moment of the aphorisms relative to honor that you have heard all of your lives. …


Editor's Comments, Robert M. Ward 2025 Eastern Michigan University

Editor's Comments, Robert M. Ward

The Geographical Bulletin

Once upon a time in the land of academia, there existed an esteemed Department of Geography. It was steeped in tradition and was recognized by its peers as being among the foremost academic departments in the world. Yet this recognition was inadequate to spare it from an abrupt termination. This Department of Geography whose allegiance was once claimed by such notable geographers as Carl Sauer, Preston James, George Kish and others was sentenced to extinction by the Board of Regents on June 19, 1981. It is small consolation that the doors of the Department will officially close during mid-1982. I …


Hedging Energy Transition: Green Hydrogen, Oil, And Low-Carbon Resilience As State Strategy In Namibia, Meredith J. DeBoom 2025 University of South Carolina

Hedging Energy Transition: Green Hydrogen, Oil, And Low-Carbon Resilience As State Strategy In Namibia, Meredith J. Deboom

Faculty Publications

Policy frameworks increasingly portray energy transition as a mechanism for achieving a range of resilience- related goals, including socio-economic development and energy security. Energy transition is often character ized as a particularly important resilience strategy for lower-income states in the Global South, which face the simultaneous challenges of decarbonization and development. Yet these states, many of which have fossil fuel resources, face distinct constraints and risks in navigating energy transition, including the possibility that promised funding for low-carbon energy projects will never come to fruition or that global decarbonization will be deferred or abandoned completely. This article uses the case …


Development And Application Of Self-Supervised Machine Learning For Smoke Plume And Active Fire Identification From The Fire Influence On Regional To Global Environments And Air Quality Datasets, Nicholas LaHaye, Anastasija Easley, Kyongsik Yun, Hugo Lee, Erik Linstead, Michael J. Garay, Olga V. Kalashnikova 2025 Spatial Informatics Group, LLC

Development And Application Of Self-Supervised Machine Learning For Smoke Plume And Active Fire Identification From The Fire Influence On Regional To Global Environments And Air Quality Datasets, Nicholas Lahaye, Anastasija Easley, Kyongsik Yun, Hugo Lee, Erik Linstead, Michael J. Garay, Olga V. Kalashnikova

Engineering Faculty Articles and Research

Fire Influence on Regional to Global Environments and Air Quality (FIREX-AQ) was a field campaign aimed at better understanding the impact of wildfires and agricultural fires on air quality and climate. The FIREX-AQ campaign took place in August 2019 and involved two aircraft and multiple coordinated satellite observations. This study applied and evaluated a self-supervised machine learning (ML) method for the active fire and smoke plume identification and tracking in the satellite and sub-orbital remote sensing datasets collected during the campaign. Our unique methodology combines remote sensing observations with different spatial and spectral resolutions. With as much as a 10% …


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