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Looking across the stream (southwest) at USGS streamgage 08223400 Rio Grande at Alamosa NWR near Alamosa, CO; non-contact radar suspended above the stream with the streamgage located on the bank on the left just out of view.
Looking across the stream (southwest) at USGS streamgage 08223400 Rio Grande at Alamosa NWR near Alamosa, CO; non-contact radar suspended above the stream with the streamgage located on the bank on the left just out of view.
Title: A Jaguar's Field of Dreams - If you build it, they will come (& other lessons from the U.S. - Mexico border) By: Laura M.
Title: A Jaguar's Field of Dreams - If you build it, they will come (& other lessons from the U.S. - Mexico border) By: Laura M.
A wide view of the lava lake within Halema‘uma‘u crater at Kīlauea summit, taken on March 24, 2021 at 12:48 p.m. HST. A gas plume rises from the west vent (center-left), which continues to erupt lava into the active western portion of the lava lake (light gray in color). The center and eastern lava lake surface is covered by a darker, stagnant crust.
A wide view of the lava lake within Halema‘uma‘u crater at Kīlauea summit, taken on March 24, 2021 at 12:48 p.m. HST. A gas plume rises from the west vent (center-left), which continues to erupt lava into the active western portion of the lava lake (light gray in color). The center and eastern lava lake surface is covered by a darker, stagnant crust.
Looking upstream (east) at USGS streamgage 08227510 North Crestone Creek at Baca NWR near Crestone, CO; USGS hydrologist is servicing the streamgage.
Looking upstream (east) at USGS streamgage 08227510 North Crestone Creek at Baca NWR near Crestone, CO; USGS hydrologist is servicing the streamgage.
Looking upstream (east) at USGS streamgage 08227510 North Crestone Creek at Baca NWR near Crestone, CO; non-contact radar suspended above the creek with USGS hydrologist servicing the streamgage on the bank on the left.
Looking upstream (east) at USGS streamgage 08227510 North Crestone Creek at Baca NWR near Crestone, CO; non-contact radar suspended above the creek with USGS hydrologist servicing the streamgage on the bank on the left.
Jin-Si Over conducting an elevation survey at Head of the Meadow Beach, Cape Cod National Seashore in Massachusetts.
Jin-Si Over conducting an elevation survey at Head of the Meadow Beach, Cape Cod National Seashore in Massachusetts.
The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active. Active surface lava is limited to the western (bottom) portion of the lake between the main island and the western fissure complex. In this view looking east, a 4 meter (13 feet) diameter skylight is visible at the top of the northeastern-most spatter cone (left). USGS photo by N.
The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active. Active surface lava is limited to the western (bottom) portion of the lake between the main island and the western fissure complex. In this view looking east, a 4 meter (13 feet) diameter skylight is visible at the top of the northeastern-most spatter cone (left). USGS photo by N.
Throughout most of human existence, we haven't known much about how volcanoes work. Because of their immense power, they have terrified and fascinated us, and remain places of great spiritual importance for many people. The lack of knowledge about volcanoes has sometimes resulted in tragic and deadly disasters.
Throughout most of human existence, we haven't known much about how volcanoes work. Because of their immense power, they have terrified and fascinated us, and remain places of great spiritual importance for many people. The lack of knowledge about volcanoes has sometimes resulted in tragic and deadly disasters.
USGS scientist sampling phytoplankton with a net in San Francisco Bay.
USGS scientist sampling phytoplankton with a net in San Francisco Bay.
Blackfoot & Jackson Glaciers: 8/1/1914 EC Stebinger, USGS Photographic Library – 9/3/2009 L McKeon, USGS
Since the historic photo was taken, Blackfoot Glacier has retreated and fragmented into two separate glaciers, Blackfoot (foreground) and Jackson (distant) Glaciers.
Blackfoot & Jackson Glaciers: 8/1/1914 EC Stebinger, USGS Photographic Library – 9/3/2009 L McKeon, USGS
Since the historic photo was taken, Blackfoot Glacier has retreated and fragmented into two separate glaciers, Blackfoot (foreground) and Jackson (distant) Glaciers.
Boulder Glacier: circa 1910 M Elrod, Glacier National Park Archives - 8/24/2007 D Fagre & G Pederson, USGS
Boulder Glacier: circa 1910 M Elrod, Glacier National Park Archives - 8/24/2007 D Fagre & G Pederson, USGS
Digitize an Analog Map With GeMS, Part B1 - How to create an empty GeMS geodatabase in ArcMap, digitize contacts from a scanned geologic map, and create map unit polygons.
Digitize an Analog Map With GeMS, Part B1 - How to create an empty GeMS geodatabase in ArcMap, digitize contacts from a scanned geologic map, and create map unit polygons.
Digitize an Analog Map With GeMS, Part B2 - Digitize orientation points and check topology.
Digitize an Analog Map With GeMS, Part B2 - Digitize orientation points and check topology.
Digitize an Analog Map With GeMS, Part B3 - How to complete nonspatial tables, validate a GeMS database, and symbolize features.
Digitize an Analog Map With GeMS, Part B3 - How to complete nonspatial tables, validate a GeMS database, and symbolize features.
Deforestation is a significant concern for many parts of the globe, particularly in places like the rainforests of the Amazon or the Congo. Scientists, governments, and non-governmental organizations turn to satellite data to track deforestation, as well as to set targets for improvement.
Deforestation is a significant concern for many parts of the globe, particularly in places like the rainforests of the Amazon or the Congo. Scientists, governments, and non-governmental organizations turn to satellite data to track deforestation, as well as to set targets for improvement.
Getting Started With GeMS, Part A - An introduction to the GeMS schema, the GeMS Tools ArcGIS toolbox, and how to prepare ArcMap for digitizing.
Getting Started With GeMS, Part A - An introduction to the GeMS schema, the GeMS Tools ArcGIS toolbox, and how to prepare ArcMap for digitizing.
Grinnell, Gem & Salamander Glaciers: 8/9/1910 M Elrod, U of M Library – 9/27/2016 L McKeon, USGS
Grinnell, Gem & Salamander Glaciers: 8/9/1910 M Elrod, U of M Library – 9/27/2016 L McKeon, USGS
The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active. Active surface lava is limited to the western portion of the lake, and is impounded by steep, well-defined levees. USGS photo by M. Patrick on March 22, 2021.
The lava lake in Halema‘uma‘u crater, at the summit of Kīlauea, remains active. Active surface lava is limited to the western portion of the lake, and is impounded by steep, well-defined levees. USGS photo by M. Patrick on March 22, 2021.
A close up of the inlet where lava from the western fissure feeds into the lake in Halema‘uma‘u, at the summit of Kīlauea. The inlet is formed from two adjacent lava streams. USGS photo by M. Patrick.
A close up of the inlet where lava from the western fissure feeds into the lake in Halema‘uma‘u, at the summit of Kīlauea. The inlet is formed from two adjacent lava streams. USGS photo by M. Patrick.
This photo shows the northern portion of the active lava lake in Halema‘uma‘u, at the summit of Kīlauea. Like the southern portion of the lake, this northern zone is also contained by steep, well-defined levees. USGS photo by M. Patrick on March 22, 2021.
This photo shows the northern portion of the active lava lake in Halema‘uma‘u, at the summit of Kīlauea. Like the southern portion of the lake, this northern zone is also contained by steep, well-defined levees. USGS photo by M. Patrick on March 22, 2021.
Crustal foundering—less-dense liquid lava overriding and sinking thin surface crust—is common in the lava lake within Halema‘uma‘u, at the summit of Kīlauea. Here, large sections of the crust are foundering, resurfacing the lake. USGS photo by M. Patrick on March 22, 2021.
Crustal foundering—less-dense liquid lava overriding and sinking thin surface crust—is common in the lava lake within Halema‘uma‘u, at the summit of Kīlauea. Here, large sections of the crust are foundering, resurfacing the lake. USGS photo by M. Patrick on March 22, 2021.
