Using Landsat and NDVI to Map Vegetation Change - Geography Realm
Landsat imagery and NDVI are used to monitor vegetation change, from invasive grass spread in rangelands to early stress detection in coastal marshes.| Geography Realm
Landsat imagery and NDVI are used to monitor vegetation change, from invasive grass spread in rangelands to early stress detection in coastal marshes.| Geography Realm
This article presents insights from the new IDTechEx report titled “Lidar 2020-2030” IDTechEx report.| Geography Realm
GIS Data| Geography Realm
This article reviews some of terminology and types of elevation based datasets available to GIS.| Geography Realm
In recent decades, mapping underground features, such as physical structures or even sounds, has substantially improved.| Geography Realm
Mapping software can help us observe trends in earthquakes, identify areas of high earthquake prevalence, and explore relationships between earthquakes and other phenomena.| Geography Realm
Lidar is a technology developed to map the elevation of features on and below the surface of the Earth.| Geography Realm
Changes in how archaeologists study the past are being brought about by advances in LiDAR technology.| Geography Realm
ICESat-2's purpose is to collect detailed measurements of the Earth's surface using its Advanced Topographic Laser Altimeter System (ATLAS).| Geography Realm
Google is using artificial intelligence to develop maps of tree canopy from its aerial imagery.| Geography Realm
Few tools have helped change and improve data collection within the field of Geographic Information Systems (GIS) more than Global Positioning System (GPS).| Geography Realm
Geography is the science that studies the Earth and the physical and human influences that shape it.| Geography Realm
The storage of carbon is a critical part of rebalancing the carbon cycle to ensure that climate change is less severe than many predict.| Geography Realm
Satellite images targeting areas of tropical Asia, Africa, and the Americas have shown that some tropical forests are dispelling more carbon than they are taking in.| Geography Realm
In partnership with scientists and researchers, farmers are coming up with different ways to keep soil from degrading and releasing more CO2 into the air.| Geography Realm
Pedology is closely related to edaphology (the study of the influence of soil on living organisms) and consists of the study of soils as they are found in nature. Pedology researches the origins of soil (pedogenesis) as well as the morphology of soils and then classifies them. Pedologists study the relationships between the pedosphere (the ... Read more| Geography Realm
Global land carbon storage saw a significant decline in 2023, driven by extreme droughts, wildfires, and heatwaves.| Geography Realm
Research suggest that the world’s deserts may be storing some of the climate-changing carbon dioxide emitted by human activities.| Geography Realm
One of the biggest environmental concerns is that of global climate change. Symptoms of major shifts in the Earth’s climate are everywhere from the melting of glaciers, rising oceans, more severe storms, and warmer temperatures. Of particular worry to scientists and researchers is that of the melting of sea ice. The amount of sea ice ... Read more| Geography Realm
Recent research has shown that one of Greeland’s largest glaciers is losing up to five billion tons of ice every year as it melts into the ocean.| Geography Realm
Researchers with the London School of Economics and Political Science published a report as part of the Pathways to Resilience in Semi-Arid Economies project that looks into reconciling economic development and poverty alleviation with climate change.| Geography Realm
The Arctic Circle is a circle of latitude encompassing the northernmost pole of the Earth and is located at approximately 66°33′45.6″ north of the Equator.| Geography Realm
Scientists are using remotely sensed data from Earth observation satellites to map and study Arctic amplification.| Geography Realm
In New Mexico and other Southwestern states, acequias are channels that are dug to divert water from snow runoff and rivers in order to irrigate fields.| Geography Realm
A global dataset of 700 mud volcanoes was recently published by geologists from Sapienza University. The post GIS Data: Shallow Sea Mud Volcanoes appeared first on Geography Realm.| Geography Realm
FAO’s global dataset maps access to towns and cities of all sizes within realistic travel times, highlighting patterns of urban interconnectedness. The post Explore the City-Regions Dataset from FAO appeared first on Geography Realm.| Geography Realm
Study maps 540 million years of sea level change, showing major short-term shifts during ice ages driven by Earth's orbital cycles. The post Mapping Short-term Sea Level Changes Over 540 Million Years appeared first on Geography Realm.| Geography Realm
Groundwater stored over many years is a significant contributor to streamflow in Western United States mountains according to a published study. The post Water Can Take Years to Seep out of Mountains appeared first on Geography Realm.| Geography Realm
Bubbles created by the movement of waves can influence how much carbon dioxide is absorbed by the ocean. The post Study Models How the Behavior of Waves Affects Blue Carbon Storage appeared first on Geography Realm.| Geography Realm
NatureServe has developed an updated 30-meter hexagon map of regional ecosystems in the contiguous United States and adjacent areas.| Geography Realm
Lake Chapala was formed at the intersection of three grabens. The post Lake Chapala: a Tectonic Lake at Mexico’s Triple-graben Intersection appeared first on Geography Realm.| Geography Realm
Read about how the Amazon once flowed east to west and how the strength of Hurricane Isaac once change the course of the Mississippi river.| Geography Realm
Ben Schmidt, who is an assistant professor of history at Northeastern University, has mapped out historical shipping routes.| Geography Realm
Why do groundhogs emerge around February 2? Hint: it's more to do with Valentine's Day.| Geography Realm
A new report analyzed 26 satellite datasets to track ice loss for the Greenland Ice Sheet.| Geography Realm
This book sets out, in some nine chapters, both the ‘turbulent’ journey of that one species living 3.7 billion years ago to the 8.7 million today and the human activity threatening that biodiversity.| Geography Realm
A project called the Earth Archive plans to use Light Detection And Ranging (LiDAR) to map the entire surface of the Earth.| Geography Realm
Because of global warming, the Dawn redwood might unexpectedly make it back to the wilderness of its ancient habitats in North America.| Geography Realm
Archaeologists and geomorphologists are some of the best suited professions for interdisciplinary research into the Late Quaternary period.| Geography Realm
Recent fossil finds in China reveal Cambrian seas were more diverse than thought.| Geography Realm
Above the Arctic Circle, Point Barrow is the northernmost point in the United States. The post Northernmost Point in the United States appeared first on Geography Realm.| Geography Realm
Learn how to create a radial flow map in QGIS to visualize migration using metro-to-metro data from the U.S. Census Bureau.| Geography Realm
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Here are some interesting geography facts that are unique to individual U.S. states and do not occur in any other state.| Geography Realm
Geography Basics| Geography Realm
Learn more about lines you see on a map running east-west and north-south called latitude and longitude.| Geography Realm
LiDAR systems are used to collect high resolution topographic and bathymetric data.| Geography Realm
Researchers from the Crowther Lab recently published a study in Science which reviewed existing research on soil communities and how climate change will accelerate the loss of carbon stored in the world's soil.| Geography Realm
Using remote sensing, a team of researchers is studying the fragile arctic environments of Northwest Siberia and how resource extraction and a warming climate affect vegetation, permafrost, and energy budgets.| Geography Realm
The Old Weather project is a crowdsourcing data gathering endeavor to understand and map historical weather variability.| Geography Realm
How does pollution from plastic, trash, and oil spills move around Earth's oceans?| Geography Realm
Two-million-year-old DNA from Greenland's permafrost reveals a rich ancient ecosystem, including mastodons, showing past climate impacts and adaptation.| Geography Realm
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GeographyFun features maps, crosswords, and word searches for educators, students, and geography enthusiasts who love exploring the world through words.| Geography Realm
The easiest way to tell if a country is landlocked is to take a look at a map of the country and the surrounding geography.| Geography Realm
Drought conditions in much of the United States are forecasted to continue for spring 2021.| Geography Realm
Deforestation is a problem we are likely all familiar with, even in passing. We drive or walk by small or large tracts of land with evidence that something is missing- from tree stumps to conspicuously empty land, deforestation is something that is happening in rainforests, mountains, and urban and rural areas all around the world ... Read more| Geography Realm
Researchers have discovered that structurally diverse forests are better at carbon sequestration that monocultures.| Geography Realm
The researchers found that the Arctic region has transitioned from a carbon sink to a source of carbon emissions.| Geography Realm
Geographic information and weather data recorded by ship crews are a valuable source of historical information that could be utilized to understand how our climate has changed.| Geography Realm
Nasa’s Goddard Institute for Space Studies (GISS) has announced that September 2016 was the warmest September ever recorded around the globe.| Geography Realm
Paleoclimate has had a major effect in shaping not only physical geography but also biodiversity in different parts of the Earth.| Geography Realm
This is the web site of Geography Realm (formerly Geo Lounge).The editor, Caitlin Dempsey, can be reached via e-mail at editor@geographyrealm.com or via physical mail at 1200 Franklin Mall # 524, Santa Clara CA 95052 USA. Google Analytics This website collects data from visitors in order to improve site performance and to better understand how visitors are using ... Read more| Geography Realm
Learn about which countries in South America are landlocked.| Geography Realm
Researchers in Global Change Biology explore how Arctic melt, merging the Pacific and Atlantic oceans, impacts animal migration.| Geography Realm
Researchers have been able to create a better picture of tectonic plates by using both earthquake vibrations and seismic waves.| Geography Realm
The worksheet below is aimed towards helping elementary school students uses graphs to learn about the different continents and the population density of each continent (printable version of this lesson about continents and population). The chart below shows the size and population of each continent and should be used to answer the following question. First, ... Read more| Geography Realm
Recently published research looked at the question of, "Instead of looking at how drought affects the forest, how might this go the other way around?"| Geography Realm
NASA's Orbiting Carbon Observatory-2 is a major source of information about the life cycle of carbon dioxide on Earth.| Geography Realm
Ecologists have found that climate change, as it changes precipitation levels and temperatures, is causing trees to grow in different locations than they have traditionally taken root.| Geography Realm
Remote sensing technologies and satellite images were used to map where the California drought is affecting trees the most.| Geography Realm
Changes that are normally brought about by climatic variations have caused major environmental concerns worldwide. These changes without doubt bring about a crisis of huge proportions which affects the regulators of environment economically, socially and even politically too. When the weather pattern shifts for instance, this normally leads to a very big threat in the ... Read more| Geography Realm
Researchers have used LiDAR to understand the impacts of Native American population decline on forest fires in the United States.| Geography Realm
Boreal forests are changing along with our climate.| Geography Realm
Datasets of paleoenvironmental variability contained in a variety of pluvial lakes is a treasure-trove of past climate conditions.| Geography Realm
Learn how many states are along the East Coast and how many states are along the West Coast.| Geography Realm
Steeper slopes cause water to flow more rapidly, strengthening its ability to erode the surrounding land and carve out channels that form the tributaries.| Geography Realm
Cartographers have been creatively crafting heads and bodies out of mountain ranges, coastlines, and other physical features. These anthropomorphic maps were intended mostly as propaganda pieces to show off the might of one country or stereotype foreign lands.| Geography Realm
Continents are defined as the largest continuous landmasses on earth.| Geography Realm
The trend of coloring in prefabricated pictures is over 400 years old, and one of the first coloring books ever created is being republished. This early coloring book was of maps and mythical images, entitled Albion’s Glorious Ile.| Geography Realm
Learn how to tell the difference between a great egret and an American white pelican in flight by examining their size, beaks, wings, and flight patterns.| Geography Realm
These zoomorphic maps were designed as propaganda tools, with each one depicting the world in a way that reflected the message the cartographer intended to convey.| Geography Realm
Find out the answers to geography trivia questions and more in this article about the geography of U.S. National Parks.| Geography Realm
Measuring the economic benefits of wildlife and outdoor areas supports conservation with tools like the NPS Visitor Spending Effects.| Geography Realm
Scientists and conservationists are working to find refuge areas in order to further land management plans and climate change predictions.| Geography Realm
Researchers have mapped out where to plant trees to mitigate climate change.| Geography Realm
Drought, more intense fires, and invasive species are changing the forest landscapes in Western United States.| Geography Realm
Climate change is creating a vegetation climate mismatch in the conifer forests of California's Sierra Nevada.| Geography Realm
The impact of climate change is reducing the amount of habitat where the trees of North America can thrive.| Geography Realm
Along the geography of the East Coast of the United States, large swathes of forest are declining at increasing rates.| Geography Realm
Climate change is causing certain key species in the Sierra Nevada mountains to change where they are growing according to a study published by the journal California Fish and Game.| Geography Realm
Boreal forests in North America are defying predictions of northward expansion in response to climate change.| Geography Realm
Researchers predict that by 2100 between 17 to 72 million people will migrate as a result of coastal land loss due to sea level rise.| Geography Realm
The San Francisco Bay was once connected to a large salt marsh that contained many different and rare species of plants and animals. Conservationists are now restoring the salt marsh.| Geography Realm
The first global map of tidal marsh locations was developed using satellite-based imagery.| Geography Realm
A joint NASA-USGS initiative has created the first worldwide map of the causes of change in mangrove habitats between 2000 and 2016.| Geography Realm
A collaboration initiative, called coastTrain, helps to provide data so that scientists can better address challenges coastal regions face.| Geography Realm
Scientists in Australia have discovered that mangrove ecosystems in Queensland are dying at rates that have never been seen before.| Geography Realm
The Alviso Slough in the San Franciso Bay is a restored salt marsh that lies in the path of the Pacific Flyway.| Geography Realm
