Geography Realm https://www.geographyrealm.com/ Explore the world of geography, GIS, and maps. Tue, 28 Oct 2025 18:46:21 +0000 en-US hourly 1 https://www.geographyrealm.com/wp-content/uploads/2020/06/cropped-GeographyRealm-site-32x32.png Geography Realm https://www.geographyrealm.com/ 32 32 Florida’s Primary Reef-Building Corals are ‘Functionally Extinct’ https://www.geographyrealm.com/floridas-corals-functionally-extinct/ Tue, 28 Oct 2025 18:46:20 +0000 https://www.geographyrealm.com/?p=57658 A 2023 heatwave killed nearly all of Florida’s main reef-building corals, leaving the reef functionally extinct.

The post Florida’s Primary Reef-Building Corals are ‘Functionally Extinct’ appeared first on Geography Realm.

]]> Using Landsat and NDVI to Map Vegetation Change https://www.geographyrealm.com/landsat-ndvi-vegetation-change/ Thu, 17 Jul 2025 23:39:35 +0000 https://www.geographyrealm.com/?p=57612 Landsat imagery and NDVI are used to monitor vegetation change, from invasive grass spread in rangelands to early stress detection in coastal marshes.

The post Using Landsat and NDVI to Map Vegetation Change appeared first on Geography Realm.

]]> GIS Data: Shallow Sea Mud Volcanoes https://www.geographyrealm.com/underwater-mud-volcanoes-gis-data/ Sat, 12 Jul 2025 00:57:17 +0000 https://www.geographyrealm.com/?p=57586 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.

]]> Explore the City-Regions Dataset from FAO https://www.geographyrealm.com/city-regions-dataset/ Thu, 10 Jul 2025 21:46:34 +0000 https://www.geographyrealm.com/?p=57563 FAO’s global dataset maps access to towns and cities of all sizes within reasonable travel times, identifying patterns of urban interconnectedness.

The post Explore the City-Regions Dataset from FAO appeared first on Geography Realm.

]]> Mapping Short-term Sea Level Changes Over 540 Million Years https://www.geographyrealm.com/sea-level-540-million-years/ Thu, 10 Jul 2025 16:33:20 +0000 https://www.geographyrealm.com/?p=57546 Researchers mapped 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.

]]> Water Can Take Years to Seep out of Mountains https://www.geographyrealm.com/groundwater-mountains-united-states/ Tue, 08 Jul 2025 21:09:40 +0000 https://www.geographyrealm.com/?p=57488 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.

]]> Study Models How the Behavior of Waves Affects Blue Carbon Storage https://www.geographyrealm.com/waves-ocean-carbon-storage/ Tue, 08 Jul 2025 19:10:22 +0000 https://www.geographyrealm.com/?p=57477 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.

]]> High Resolution Ecosystem Map of the Contiguous United States and Adjacent Areas https://www.geographyrealm.com/ecosystem-map-united-states/ Tue, 01 Jul 2025 19:22:19 +0000 https://www.geographyrealm.com/?p=57448 NatureServe has developed an updated 30-meter hexagon map of regional ecosystems in the contiguous United States and adjacent areas.

The post High Resolution Ecosystem Map of the Contiguous United States and Adjacent Areas appeared first on Geography Realm.

]]> Lake Chapala: a Tectonic Lake at Mexico’s Triple-graben Intersection https://www.geographyrealm.com/lake-chapala/ Wed, 25 Jun 2025 02:20:35 +0000 https://www.geographyrealm.com/?p=57435 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.

]]> Rivers that Flow Backwards https://www.geographyrealm.com/rivers-flow-backwards/ Fri, 13 Jun 2025 18:01:00 +0000 https://geographyrealm.com/?p=23244 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.

The post Rivers that Flow Backwards appeared first on Geography Realm.

]]>