Geography Realm
@geography.bsky.social
📤 516
📥 11
📝 154
All things geography, GIS, and geospatial technologies.
Since the 1960s, blue jays have gradually extended their range past the Rocky Mountains into the western United States and Canada.
#geography
www.geographyrealm.com/crested-jay-...
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This Bird is Not the Only Crested Jay West of the Rocky Mountains
Since the 1960s, blue jays have gradually extended their range past the Rocky Mountains into the western United States and Canada.
https://www.geographyrealm.com/crested-jay-united-states/
3 months ago
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Researchers using models and historical records estimate that up to 11% of all bird species have gone extinct since the Late Pleistocene.
www.geographyrealm.com/human-driven...
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Human-Driven Extinction of Birds
Researchers using models and historical records estimate that up to 11% of all bird species have gone extinct since the Late Pleistocene.
https://www.geographyrealm.com/human-driven-extinction-birds/
3 months ago
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A study of 135,153 vascular plant species predicts that by 2070, 33-68% of land on Earth will experience significant phytoclimate changes.
#geography
www.geographyrealm.com/forecasting-...
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Forecasting Phytoclimates
A study of 135,153 vascular plant species predicts that by 2070, 33-68% of land on Earth will experience significant phytoclimate changes.
https://www.geographyrealm.com/forecasting-phytoclimates/
3 months ago
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GIS data: mud volcanoes in shallow seas
#GIS
#geography
www.geographyrealm.com/underwater-m...
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GIS Data: Underwater Mud Volcanoes in Shallow Seas
A global dataset of 700 mud volcanoes was recently published by geologists from Sapienza University.
https://www.geographyrealm.com/underwater-mud-volcanoes-gis-data/
3 months ago
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Explore the city-regions dataset from FAO
#GIS
#geography
www.geographyrealm.com/city-regions...
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Explore the City-Regions Dataset from FAO
FAO’s global dataset maps access to towns and cities of all sizes within realistic travel times, highlighting patterns of urban interconnectedness.
https://www.geographyrealm.com/city-regions-dataset/
3 months ago
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Since the 1960s, more and more crows have been abandoning their rural winter roosts in favor of cities and towns.
#geography
www.geographyrealm.com/the-growth-o...
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The Growth of Crows in Cities
Since the 1960s, more and more crows have been abandoning their rural winter roosts in favor of cities and towns.
https://www.geographyrealm.com/the-growth-of-crows-in-cities/
3 months ago
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Study: water can take years to seep out of mountains
#geography
www.geographyrealm.com/groundwater-...
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Water Can Take Years to Seep out of Mountains
Groundwater stored over many years is a significant contributor to streamflow in Western United States mountains according to a published study.
https://www.geographyrealm.com/groundwater-mountains-united-states/
3 months ago
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Study models how the behavior of waves affects blue carbon storage
#geography
www.geographyrealm.com/waves-ocean-...
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Study Models How the Behavior of Waves Affects Blue Carbon Storage
Bubbles created by the movement of waves can influence how much carbon dioxide is absorbed by the ocean.
https://www.geographyrealm.com/waves-ocean-carbon-storage/
3 months ago
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NatureServe has developed an updated 30-meter hexagon map of regional ecosystems in the contiguous United States and adjacent areas.
#geography
#GIS
#maps
www.geographyrealm.com/ecosystem-ma...
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High Resolution Ecosystem Map of the Contiguous United States and Adjacent Areas
NatureServe has developed an updated 30-meter hexagon map of regional ecosystems in the contiguous United States and adjacent areas.
https://www.geographyrealm.com/ecosystem-map-united-states/
3 months ago
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Mapping buildings in 2.5D using ArcGIS Pro
#gis
www.geographyrealm.com/map-building...
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Mapping Buildings in 2.5D Using ArcGIS Pro
Learn how to find and use building footprint data from OpenStreetMap to create a 2.5D map in ArcGIS Pro.
https://www.geographyrealm.com/map-buildings-2-5d-arcgis-pro/
3 months ago
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Discover the highest point in each U.S. state.
#geography
www.geographyrealm.com/highest-poin...
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Highest Point in Every U.S. State
Discover the highest point in each U.S. state.
https://www.geographyrealm.com/highest-point-in-every-u-s-state/
3 months ago
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Learn about the highest 11 mountains in the United States.
#geography
www.geographyrealm.com/the-highest-...
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The Highest 11 Mountains in the United States
Learn about the highest 11 mountains in the United States.
https://www.geographyrealm.com/the-highest-11-mountains-in-the-united-states/
3 months ago
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Moonbows, like rainbows, happen when light passes through water vapor in the sky.
#geography
www.geographyrealm.com/exploring-ra...
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Exploring Rainbows and Moonbows
Rainbows and moonbows occur when light is refracted through drops of water in the sky.
https://www.geographyrealm.com/exploring-rainbows-moonbows/
3 months ago
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Researchers are studying how wolves shape forests by limiting beaver foraging, keeping them close to water to avoid predation.
#geography
www.geographyrealm.com/beaver-wolf-...
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How the Beaver-Wolf Dynamic Modifies Forests
Researchers are studying how wolves shape forests by limiting beaver foraging, keeping them close to water to avoid predation.
https://www.geographyrealm.com/beaver-wolf-dynamic/
3 months ago
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Researchers used synthetic aperture radar (SAR) data from colocated satellites to estimate tree canopy height.
#geospatial
#remotesensing
#geography
www.geographyrealm.com/tree-height-...
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Measuring Tree Height With a Two-Satellite Constellation
Researchers used synthetic aperture radar (SAR) data from colocated satellites to estimate tree canopy height.
https://www.geographyrealm.com/tree-height-two-satellite-constellation/
4 months ago
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Telling the difference between a canyon and a mountain on aerial or satellite imagery can sometimes be tricky due to an optical illusion known as relief inversion.
#geospatial
#geography
www.geographyrealm.com/relief-inver...
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Relief Inversion
When looking at aerial and satellite imagery, telling the difference between a canyon and a mountain can sometimes be tricky due to an optical illusion.
https://www.geographyrealm.com/relief-inversion/
4 months ago
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GraphCast is a Google DeepMind effort that uses deep learning to improve medium-range weather forecasting.
#geography
#geospatial
www.geographyrealm.com/weather-fore...
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Weather Forecasting Using Artificial Intelligence
GraphCast is a Google DeepMind effort that uses deep learning to improve medium-range weather forecasting.
https://www.geographyrealm.com/weather-forecasting-artificial-intelligence/
4 months ago
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UniTS is a tool designed to simplify the process of using multiple time series datasets created over different time periods and for different geographic resolutions.
#GIS
#geography
#geospatial
www.geographyrealm.com/time-series-...
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Adapting Time Series Data for Earth Observation
UniTS is a tool designed to simplify the process of using multiple time series datasets created over different time periods and for different geographic resolutions.
https://www.geographyrealm.com/time-series-earth-observation/
4 months ago
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Researchers used satellite imagery to map Antarctica’s penguin population by estimating their numbers based on the large guano stains left behind.
#remotesensing
#geospatial
www.geographyrealm.com/tracking-pen...
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Tracking Penguin Colonies Through Their Droppings
Researchers are using satellite imagery to map Antarctica’s penguin population by estimating their numbers based on the large guano stains left behind.
https://www.geographyrealm.com/tracking-penguin-colonies-droppings/
4 months ago
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Fast ice, found in both polar regions, is sea ice that attaches to coasts, icebergs, ice shelves, or the ocean floor.
#geography
www.geographyrealm.com/fast-ice/
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Understanding Fast Ice in Polar Ecosystems and Climate Dynamics
Fast ice, found in both polar regions, is sea ice that attaches to coasts, icebergs, ice shelves, or the ocean floor.
https://www.geographyrealm.com/fast-ice/
4 months ago
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Learn how to find URLs for older feature and map servers hosted on ArcGIS Online so they can be added to QGIS.
#qgis
#GIS
#geospatial
www.geographyrealm.com/url-arcgis-r...
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How to Find the URL to an ArcGIS Online Web Map and Add it to QGIS
Learn how to find URLs for older feature and map servers hosted on ArcGIS Online so they can be added to QGIS.
https://www.geographyrealm.com/url-arcgis-rest-server-layer-qgis/
4 months ago
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By tagging seals with specialized sensors, researchers can map Antarctic ocean currents, heat distribution, and assess the health of marine ecosystems.
#geography
#geospatial
www.geographyrealm.com/seals-ocean-...
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Using Seals to Track Ocean Currents
By tagging seals with specialized sensors, researchers can map Antarctic ocean currents, heat distribution, and assess the health of marine ecosystems.
https://www.geographyrealm.com/seals-ocean-currents/
4 months ago
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Steep slopes cause water to flow more quickly, increasing erosion and carving channels that eventually form tributaries.
#geography
www.geographyrealm.com/single-sided...
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Slope Steepness and the Formation of Single-sided River Tributaries
Steep slopes cause water to flow more quickly, increasing erosion and carving channels that eventually form tributaries.
https://www.geographyrealm.com/single-sided-river-tributaries/
4 months ago
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A study found that about 25% of Europe could benefit from rewilding, the process of restoring natural ecosystems and wildlife.
#geography
www.geographyrealm.com/study-25-of-...
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Study: 25% of Europe Could Be Rewilded
A study found that about 25% of Europe could benefit from rewilding, the process of restoring natural ecosystems and wildlife.
https://www.geographyrealm.com/study-25-of-europe-could-be-rewilded/
4 months ago
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Fire-triggered thunderstorms called pyroCbs, short for pyrocumulonimbus clouds, is on the rise.
#geography
www.geographyrealm.com/the-rise-of-...
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Understanding the Increase in PyroCbs: Wildfire Thunderstorms
Fire-triggered thunderstorms called pyroCbs (pyrocumulonimbus clouds), is on the rise.
https://www.geographyrealm.com/the-rise-of-pyrocbs/
4 months ago
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Glacial retreat in Alaska's Yakutat Foreland has fueled rapid growth of proglacial lakes, doubling their size in 40 years as seen in Landsat imagery.
#geography
www.geographyrealm.com/proglacial-l...
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The Rise of Proglacial Lakes
Glacial retreat in Alaska's Yakutat Foreland has fueled rapid growth of proglacial lakes, doubling their size in 40 years as seen in Landsat imagery.
https://www.geographyrealm.com/proglacial-lakes/
4 months ago
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Cartopareidolia: Seeing people and animals in maps
#cartography
#maps
#gis
www.geographyrealm.com/cartopareido...
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Cartopareidolia: Seeing People and Animals in Maps
Cartopareidolia is the phenomenon of seeing people and animals in maps.
https://www.geographyrealm.com/cartopareidolia-seeing-people-and-animals-in-maps/
4 months ago
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Isostatic rebound is the Earth's slow rise after glaciers melt, reshaping coastlines, revealing landforms, and altering sea levels globally.
#geography
www.geographyrealm.com/isostatic-re...
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Isostatic Rebound: How Earth's Surface Rises after Glaciers Retreat
Isostatic rebound is the Earth's slow rise after glaciers melt, reshaping coastlines, revealing landforms, and altering sea levels globally.
https://www.geographyrealm.com/isostatic-rebound-glaciers/
4 months ago
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This QGIS tutorial guides you through pan sharpening Landsat imagery by combining the 15-meter panchromatic band with lower-resolution multispectral bands.
#GIS
#qgis
www.geographyrealm.com/pan-sharpen-...
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Pan Sharpen Landsat Imagery in QGIS
This QGIS tutorial guides you through pan sharpening Landsat imagery by combining the 15-meter panchromatic band with lower-resolution multispectral bands.
https://www.geographyrealm.com/pan-sharpen-landsat-qgis/
4 months ago
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Learn how to create a radial flow map in QGIS to visualize migration using metro-to-metro data from the U.S. Census Bureau.
#GIS
#qgis
www.geographyrealm.com/radial-flow-...
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How to Create a Radial Flow Map Using QGIS
Learn how to create a radial flow map in QGIS to visualize migration using metro-to-metro data from the U.S. Census Bureau.
https://www.geographyrealm.com/radial-flow-map-qgis/
4 months ago
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Grounding lines are the boundaries where glaciers and ice sheets transition from resting on solid ground to floating on seawater.
www.geographyrealm.com/glacier-grou...
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Understanding Glacier Grounding Lines
Grounding lines are the boundaries where glaciers and ice sheets transition from resting on solid ground to floating on seawater.
https://www.geographyrealm.com/glacier-grounding-lines/
4 months ago
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Iceberg A-23A, the world's biggest iceberg, is now moored off the coast of South Georgia Island.
#geography
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World's Biggest Iceberg
Currently, the largest iceberg in the world is A-23A, with an area of 3,880 square kilometers.
https://www.geographyrealm.com/worlds-biggest-iceberg/
5 months ago
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The 2025 papal conclave is underway. Here’s which countries the 135 voting cardinals eligible to elect the next pope come from.
#geography
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Map and Chart of Cardinals and the 2025 Papal Conclave
The 2025 papal conclave is underway. Here's which countries the 135 voting cardinals eligible to elect the next pope come from.
https://www.geographyrealm.com/2025-map-cardinals-papal-conclave/
5 months ago
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Explore viewers for visualizing GIS vector data in shapefile format, available for both desktop and web browsers.
#GIS
www.geographyrealm.com/shapefile-vi...
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Shapefile Viewers
Explore viewers for visualizing GIS vector data in shapefile format, available for both desktop and web browsers.
https://www.geographyrealm.com/shapefile-viewers/
5 months ago
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Explore John Snow's cholera map using GIS data
#GIS
#geography
www.geographyrealm.com/john-snows-c...
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Explore John Snow's Cholera Map using GIS Data
There are a couple of sources available for downloading the cholera map created by John Snow in GIS data format.
https://www.geographyrealm.com/john-snows-cholera-map-gis-data/
6 months ago
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Got any tips for remembering: X is Longitude, Y is Latitude
#GIS
#geography
#geospatial
www.geographyrealm.com/x-longitude-...
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X is Longitude, Y is Latitude
Here are some simple strategies for remembering that X is longitude and Y is latitude in GIS.
https://www.geographyrealm.com/x-longitude-y-latitude/
6 months ago
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Researchers analyzed GIS faculty hiring data to identify geographic patterns influencing job placement.
www.geographyrealm.com/geography-gi...
#GIS
#geospatial
#geography
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Where are GIS Professors Hired From?
Researchers analyzed GIS faculty hiring data to identify geographic patterns influencing job placement.
https://www.geographyrealm.com/geography-gis-professors/
7 months ago
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With no universal definition, mapping and comparing forest coverage around the world is challenging.
#geospatial
#geography
www.geographyrealm.com/forest-defin...
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Defining How Much of the World is Covered by Forests
With no universal definition, mapping and comparing forest coverage around the world is challenging.
https://www.geographyrealm.com/forest-definition/
7 months ago
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Deep space mapping of Saharan dust height
#geospatial
#geography
#RemoteSensing
www.geographyrealm.com/deep-space-m...
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Deep Space Mapping of Saharan Dust Height
Researchers used four years of measurements from a deep space satellite to calculate the average monthly heights of Saharan dust clouds.
https://www.geographyrealm.com/deep-space-mapping-saharan-dust/
8 months ago
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Check out the QGIS resources hub web portal for projects, models, and layer definition styles.
#GIS
#qgis
hub.qgis.org
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QGIS Resources Hub
https://hub.qgis.org
8 months ago
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GraphCast is a Google DeepMind effort that uses deep learning to improve medium-range weather forecasting.
#geospatial
www.geographyrealm.com/weather-fore...
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Weather Forecasting Using Artificial Intelligence
GraphCast is a Google DeepMind effort that uses deep learning to improve medium-range weather forecasting.
https://www.geographyrealm.com/weather-forecasting-artificial-intelligence/
8 months ago
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Adapting time series data for Earth observation
#geospatial
www.geographyrealm.com/time-series-...
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Adapting Time Series Data for Earth Observation
UniTS was developed as a versatile tool that can handle a wide range of time series tasks without the need for time-consuming and individualized adjustments.
https://www.geographyrealm.com/time-series-earth-observation/
8 months ago
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Heart-shaped map projections
#ValentinesDay
#geography
#maps
#cartography
www.geographyrealm.com/heart-shaped...
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Cordiform: Heart-Shaped Map Projections
Heart shaped map projections are known as cordiform map projections which is derived from the Latin "cor" for heart and form for shape.
https://www.geographyrealm.com/heart-shaped-map-projections/
8 months ago
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Located about 55 miles north of Sacramento in Northern California, this small volcanic formation is known as "the world's smallest mountain range."
#geography
www.geographyrealm.com/sutters-butt...
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The World's Smallest Mountain Range
Located about 55 miles north of Sacramento in Northern California, this small volcanic formation is known as "the world's smallest mountain range."
https://www.geographyrealm.com/sutters-butte-smallest-mountain-range/
8 months ago
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Study: Minority and low-income neighborhoods have 11% fewer trees, are 1.5°C hotter, and have 14% more impervious surfaces than wealthier, whiter areas.
#geography
www.geographyrealm.com/urban-tree-c...
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Urban Tree Canopy Affects How Heat Stress Impacts Residents
Minority and low-income neighborhoods have 11% fewer trees, are 1.5°C hotter, and have 14% more impervious surfaces than wealthier, whiter areas.
https://www.geographyrealm.com/urban-tree-canopy-heat-waves/
8 months ago
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Hydroclimate whiplash – the rapid swing between drought and heavy precipitation – plays a role in the increasing intensity of California wildfires.
#geography
www.geographyrealm.com/hydroclimate...
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Hydroclimate Whiplash: the Impact on California Wildfires
Hydroclimate whiplash - the rapid swing between drought and heavy precipitation - plays a role in the increasing intensity of California wildfires.
https://www.geographyrealm.com/hydroclimate-whiplash-california-wildfires/
8 months ago
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An ice arch forms when sea ice buckles under pressure, creating a natural arch-shaped structure in polar regions, often blocking the movement of ice.
#geography
www.geographyrealm.com/what-is-an-i...
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What is an Ice Arch?
An ice arch forms when sea ice buckles under pressure, creating a natural arch-shaped structure in polar regions, often blocking the movement of ice.
https://www.geographyrealm.com/what-is-an-ice-arch/
8 months ago
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The USGS Spectral Characteristics Viewer to let users view how different Earth observation satellite instruments can be used for their remote sensing needs.
#geospatial
www.geographyrealm.com/this-tools-h...
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This Tools Helps You Figure Out Which Satellite Bands to Use for Remote Sensing
The USGS developed the Spectral Characteristics Viewer to let users view how different Earth observation satellite instruments can be used for their remote sensing needs.
https://www.geographyrealm.com/this-tools-helps-you-figure-out-which-satellite-bands-to-use-for-remote-sensing/
8 months ago
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Researchers used models and historical records to estimate that up to 11% of all bird species have gone extinct since the Late Pleistocene.
www.geographyrealm.com/human-driven...
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Human-Driven Extinction of Birds
Researchers using models and historical records estimate that up to 11% of all bird species have gone extinct since the Late Pleistocene.
https://www.geographyrealm.com/human-driven-extinction-birds/
8 months ago
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Scientists used AI and passive acoustic monitoring to map coral reef health by analyzing ocean sounds.
#geospatial
www.geographyrealm.com/mapping-cora...
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Mapping Coral Reef Health with Sound
Scientists use AI and passive acoustic monitoring to map coral reef health by analyzing ocean sounds.
https://www.geographyrealm.com/mapping-coral-reef-health/
8 months ago
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