ISS061E098033 (Valley-and-Ridge) lrg.jpg
Astronaut photograph [https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS061&roll=E&frame=98033 ISS061-E-98033] was acquired on December 24, 2019, with a Nikon D5 digital camera using an 800 millimeter lens and is provided by the ISS Crew Earth Observations Facility and the Earth Science and Remote Sensing Unit, Johnson Space Center. The image was taken by a member of the [http://www.nasa.gov/mission_pages/station/expeditions/expedition61/index.html Expedition 61 crew]. The image has been cropped and enhanced to improve contrast, and lens artifacts have been removed. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC [http://eol.jsc.nasa.gov/ Gateway to Astronaut Photography of Earth]. Caption by Laura Phoebus, Jacobs, JETS Contract at NASA-JSC.
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ISS061E098033 (Valley and Ridge) lrg, 2020 in Pennsylvania, Dauphin, Pennsylvania, Harrisburg, Pennsylvania, Susquehanna River in the 21st century, Satellite pictures of Pennsylvania, ISS Expedition 61 Crew Earth Observations
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ISS061E098033 (Valley and Ridge) lrg, The Susquehanna River cuts through the folds of the [ Valley-and-Ridge] province of the [ Appalachian Mountains] in this photograph taken by an astronaut onboard the International Space Station. Harrisburg, Pennsylvania, and a few smaller towns stand along the banks of the river.

The Valley-and-Ridge province is a section of the larger [ Appalachian Mountain Belt] between the Appalachian Plateau and the Blue Ridge physiographic provinces. The northeast-southwest trending ridges are composed of Early [ Paleozoic] sedimentary rocks. The valleys between them were made of softer rocks (limestone and shales) that were more susceptible to erosion; they are now occupied by farms. The [ Susquehanna River] cuts through [ several ridges as it flows south].

The [ Susquehanna River] flows 444 mi (714 kilometers) from upstate New York to Maryland, draining into [ Chesapeake Bay]. The Susquehanna watershed covers more than 27,000 square miles (70,000 square kilometers) and is the source of more than half of the fresh water in the Bay. Farms like the ones in this photograph are a mainstay of Pennsylvania’s economy. However, they also contribute a large influx of [ nutrient] and sediment [ pollution] flowing into the Bay.
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ISS061E098033、2020年のペンシルベニア州、ドーフィン、ペンシルベニア州ハリスバーグ、21世紀のサスケハナ川、ペンシルバニア州の衛星写真、ISS 第61次長期滞在クルー地球観測
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ISS061E098033 国際宇宙ステーションに乗船している宇宙飛行士が撮影した写真。ペンシルベニア州ハリスバーグと、川のほとりに沿っていくつかの小さな町が立っている。バレー・アンド・リッジ県は、アパラチア高原とブルーリッジの地理区分の中間に位置する、より広い[アパラチア山脈帯]の県である。北東から南西の潮汐は、早期旧生層堆積岩で構成されている。それらの間の谷は、侵食の影響を受けやすい柔らかい岩(石灰岩と頁岩)でできており、現在は農場で占められている。サスケハナ川は、南に流れているときに[いくつかの尾根]を断ち切ります。上流のニューヨーク州からメリーランド州まで444 mi (714 km)流れ、チェサピーク湾に流れ込む。サスケハナ分水界は27,000平方マイル(70,000平方キロメートル)以上をカバーしており、湾内の淡水の半分以上が水源となっている。この写真の農場のようなものは、ペンシルベニア経済の主力である。しかし、それらはまた、湾に流入する大量の [栄養塩] と堆積物 [汚染] も寄与している。
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dauphin crew cut fresh-cut harrisburg chesapeake bay