A 1941 Lockheed poster. Wings of peace...on missions of war.
Twitter. Meander modelling. A view up river from #Richmond Hill #London by Francois Vivares 1709-1780 (@YaleBritishArt. A (small) river taking the fastest route during flood conditions - potential oxbow lake forming? #geographyteacher #meander #rivers #oxbowlake. Cuckmere Haven, Eric Ravilious, 1939. The original is in the collection of @TownerGallery. #Sussex. All within or under four miles of each other.* Top left to bottom left: 'Lullington Church', James Bateman, 1939. 'The Long Man of Wilmington' and 'Beachy Head Lighthouse (Belle Tout)', Eric Ravilous, 1939, and 'Cuckmere Meanders to Seaford Head' by Mark.
#Meanders of the Koyukuk River, Alaska (image from Apple Maps) So I’m sure this is not part of the plan when this was created, but this is the video I have been searching for for years to explain meander erosion and thalweg #geographyconcepts #rivers… *****Awesome video of lower course of the river and the latter oak erosion creating oxbow lakes #rivers #geography #geographyteacher great for a starter. *****35 years of change on the Mamoré River, Bolivia, as seen in @NASA_Landsat images… *****Flow visualization in a low sinuous meandering channel with groynes (Sinuousity=1.2, Deflection angle=45') #PIV #Flumefriday… *****This animation shows 14 false-color images of the Padma river in Bangladesh over the course of 30 years, between 1988 and 2018, and shows the continuous evolution of meanders that water and time generate in the environment close to a river. *****These photos give an idea of why the legendary Amazon River has fascinated so many explorers. #Horizons #archive…
Fieldwork yesterday on the R. Arrow, Warwicks with Carly Gant for her Masters thesis using drone imagery & s-f-m for high res mapping of bank erosion & channel migration. Ty to @Sophiepearce41 for field assistance. @WorcesterRS @GeographyUoW #uav. No it's not smoke, this is a LIDAR (laser scanning) image showing 1500 years worth of river movement. Beautifully destroying that "It's always been like it" argument! Fieldwork yesterday on the R. Arrow, Warwicks with Carly Gant for her Masters thesis using drone imagery & s-f-m for high res mapping of bank erosion & channel migration. Ty to @Sophiepearce41 for field assistance. @WorcesterRS @GeographyUoW #uav. Photographer Thomas Schröder won the Pests Without Borders photo award when he was looking for infestations in a forest, and captured this baby zig zag elm sawfly in action. *****A floodplain doing its thing last week (meanders; braiding). Look at all the water flowing slowly through old channels & depressions, delaying its arrival downstream. Natural flood management. Great drone footage of the upper Teme.
Lidar technology reveals stunning view of the Willamette River in #Oregon. A single image shows centuries and millennia of meandering. Source. Daniel Coe sur Twitter : "#MississippiRiver #meander scars. Spot-on 1944 mapping from Fisk (ACOE) & fascinating #lidar/imagery landscape patterns from Tensas Parish, Lousiana—least populated in LA. #geomorphology #sediment #map. Some great string meanders created by year 10 today… Daniel Coe sur Twitter : "#MississippiRiver #meander scars. Spot-on 1944 mapping from Fisk (ACOE) & fascinating #lidar/imagery landscape patterns from Tensas Parish, Lousiana—least populated in LA. #geomorphology #sediment #map.
Water + time = a continuous evolution of meanders and braids that fade in and out of a landscape. Here, the Padma River in Bangladesh carves a changing course over 14 years. Twitter. Twitter. I love teaching rivers and this students diagrams are excellent! □☺️#GeographyTeacher… Rivers through time, as seen in Landsat images « Hindered Settling. Thanks to the Landsat program and Google Earth Engine, it is possible now to explore how the surface of the Earth has been changing through the last thirty years or so.
Besides the obvious issues of interest, like changes in vegetation, the spread of cities, and the melting of glaciers, it is also possible to look at how rivers change their courses through time. You have probably already seen the images of the migrating Ucayali River in Peru, for example here. This river is changing its course with an impressive speed; many – probably most – other rivers don’t show much obvious change during the same 30-year period. What determines the meander migration rate of rivers is an interesting question in fluvial geomorphology. The data that underlies Google Earth Engine is not accessible to everybody, but the Landsat data is available to anyone who creates a free account with Earth Explorer. Like this: Like Loading... Meander madness - ancient courses of the Mississippi River and such beautiful maps! #geomorphology. *Revise w drone trip along R Towy as we follow it downstream e.g. write a commentary.
Meanders (animated GIF) Making Models of a river meander with year 9. Good use of tin foil I think. #geographyteacher. Some crazy meandering river channels near the Batagaika permafrost crater! #channels #batagaika #river @seis_matters @BasinsIC. Go home river. You're drunk. Meandering #Outback river □ Woke up in time to see some incredible Geology at work before landing in Houston! Look at those point bars! #geology #pointbar #oxbow… Sexy abandoned meanders (from Geomorphological Features on Facebook). Ooooft. What river feature is this? #rivers #germany #geography #justdaeit. Meander, meander, cut-off 1999, 2000, 2001…
Bill Brandt #photography Cuckmere River, Sussex, 1963. The beautiful ‘Moselland’ (#Germany) captured in one picture. With Kröv, a little village, in the background.… Some of the most beautiful #meanders form in ice — photo by NASA’s Operation #IceBridge… Vermiculate - wriggling, sinuous, worm-like (Latin vermis, worm). “Once there were brook trout in the streams in the mountains...On their backs were vermiculate patterns that were maps of the world in it. 63. Practicing being a pacer at The Big Half… Frozen meanders in Alaska - @NASA_Landsat image from 2016…