{"id":27678,"date":"2017-08-22T08:03:30","date_gmt":"2017-08-22T12:03:30","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=27678"},"modified":"2017-08-22T08:03:30","modified_gmt":"2017-08-22T12:03:30","slug":"eclipsemobs-august-21-experiment","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2017\/08\/eclipsemobs-august-21-experiment\/","title":{"rendered":"EclipseMob’s August 21 experiment"},"content":{"rendered":"
\"\"<\/a>

(Image: EclipseMob)<\/p><\/div>\n

(Source: The Washington Post)<\/a><\/p>\n

On Aug. 21, as\u00a0the moon passes in front of the sun and casts a\u00a0shadow across the United States, millions are expected to gaze at the totality. Meanwhile, a smaller crowd\u00a0will be glued to 150 custom-made radio receivers set up across the country.<\/p>\n

The project, called\u00a0EclipseMob<\/a>, is the largest\u00a0experiment of its kind\u00a0in history<\/a>. By recording changes in the radio signal, these citizen scientists will collect data on the ionosphere \u2014\u00a0the region of the atmosphere where, miles\u00a0above Earth’s surface, cosmic and solar\u00a0radiation bumps electrons free from atoms and molecules. It plays a crucial role in some forms of\u00a0long-distance communication: Like rocks skipped across a pond, radio waves can bounce along the top of the ionosphere to travel farther around the globe. But\u00a0signals passing through the\u00a0ionosphere\u00a0sometimes behave in\u00a0unpredictable ways<\/a>, and scientists still have a lot of questions about its properties and\u00a0behavior.<\/p>\n

\u201cAny solar eclipse is a good opportunity to study the ionosphere,\u201d said\u00a0Jill K. Nelson<\/a>, an expert in signal processing at George Mason University in\u00a0Virginia. The level of ions in the ionosphere fluctuates from day to night, decreasing\u00a0in the absence of sunlight. But this change happens gradually during normal sunrises and sunsets. The sudden\u00a0light-to-dark switch\u00a0as it occurs during the\u00a0eclipse, then, is an opportune moment to observe this layer of the atmosphere.<\/p>\n

Continue reading at The Washington Post…<\/a><\/p>\n<\/blockquote>\n

Many thanks for the tip, Ed!<\/p>\n","protected":false},"excerpt":{"rendered":"

(Source: The Washington Post) On Aug. 21, as\u00a0the moon passes in front of the sun and casts a\u00a0shadow across the United States, millions are expected to gaze at the totality. Meanwhile, a smaller crowd\u00a0will be glued to 150 custom-made radio receivers set up across the country. The project, called\u00a0EclipseMob, is the largest\u00a0experiment of its kind\u00a0in […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[545,3],"tags":[6343,6282,6448,4378],"class_list":["post-27678","post","type-post","status-publish","format-standard","hentry","category-ham-radio","category-news","tag-2017-solar-eclipse","tag-eclipse","tag-eclipsemob","tag-washington-post"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-7cq","jetpack-related-posts":[{"id":27199,"url":"https:\/\/swling.com\/blog\/2017\/07\/ham-radio-2017-eclipse-experiment\/","url_meta":{"origin":27678,"position":0},"title":"Ham Radio: 2017 Eclipse Experiment","author":"Thomas","date":"July 17, 2017","format":false,"excerpt":"Many thanks to SWLing Post contributor, Colin Newell, who shares a fascinating 2017 eclipse experiment outlined on the website HamSCI. Here's the summary of the experiment: On 21 August 2017, a total solar eclipse will traverse the continental United States from Oregon to South Carolina in a period of just\u2026","rel":"","context":"In "Ham Radio"","block_context":{"text":"Ham Radio","link":"https:\/\/swling.com\/blog\/category\/ham-radio\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/usa_eclipse_map_v2_print-1024x512.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/usa_eclipse_map_v2_print-1024x512.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/usa_eclipse_map_v2_print-1024x512.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":27203,"url":"https:\/\/swling.com\/blog\/2017\/08\/reminder-2017-eclipse-experiment\/","url_meta":{"origin":27678,"position":1},"title":"Reminder: 2017 Eclipse Experiment","author":"Thomas","date":"August 17, 2017","format":false,"excerpt":"The 2017 eclipse is quickly approaching (August 21)--!! If you would like to participate in a fascinating radio experiment coinciding with the event, check out this undertaking outlined on the website HamSCI. Note that you do not need to be in the path of totality in order to participate. Here's\u2026","rel":"","context":"In "Ham Radio"","block_context":{"text":"Ham Radio","link":"https:\/\/swling.com\/blog\/category\/ham-radio\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/usa_eclipse_map_v2_print-1024x512.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/usa_eclipse_map_v2_print-1024x512.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/usa_eclipse_map_v2_print-1024x512.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":59084,"url":"https:\/\/swling.com\/blog\/2024\/02\/eclipse-radio-several-nasa-funded-science-projects\/","url_meta":{"origin":27678,"position":2},"title":"Eclipse Radio: Several NASA-Funded Science Projects","author":"Thomas","date":"February 24, 2024","format":false,"excerpt":"Many thanks to SWLing Post contributor, David Iurescia, who shares the following article via NASA: NASA-Funded Science Projects Tuning In to \u2018Eclipse Radio\u2019 (NASA) On April 8, 2024, a total solar eclipse will cross parts of the United States. For millions of people along the path of totality, where the\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/02\/eclipse-national-forest.webp?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/02\/eclipse-national-forest.webp?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/02\/eclipse-national-forest.webp?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/02\/eclipse-national-forest.webp?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/02\/eclipse-national-forest.webp?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2024\/02\/eclipse-national-forest.webp?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":27899,"url":"https:\/\/swling.com\/blog\/2017\/09\/guest-post-eclipse-2017-shortwave-propagation-observations\/","url_meta":{"origin":27678,"position":3},"title":"Guest Post: Eclipse 2017 – Shortwave Propagation Observations","author":"Thomas","date":"September 4, 2017","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0Bob LaRose (W6ACU), for the following guest post: Eclipse 2017 Propagation Observations by\u00a0Bob LaRose (W6ACU) DXers\u00a0know that\u00a0the reception of\u00a0overseas Shortwave\u00a0Broadcast stations offers\u00a0one of the\u00a0best ways\u00a0to\u00a0immediately\u00a0gauge\u00a0shortwave radio\u00a0propagation conditions from\u00a0your\u00a0location\u00a0to\u00a0distant\u00a0areas of the world. For the eclipse of 2017 I decided to see how reception of\u00a0SW\u00a0broadcast stations on\u2026","rel":"","context":"In "AM"","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/usa_eclipse_map_v2_print-1024x512.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/usa_eclipse_map_v2_print-1024x512.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/07\/usa_eclipse_map_v2_print-1024x512.jpg?resize=525%2C300&ssl=1 1.5x"},"classes":[]},{"id":27633,"url":"https:\/\/swling.com\/blog\/2017\/08\/solar-eclipse-2017-in-the-path-of-totality\/","url_meta":{"origin":27678,"position":4},"title":"Solar Eclipse 2017: In the path of totality","author":"Thomas","date":"August 20, 2017","format":false,"excerpt":"Tomorrow, we will be experiencing a total solar eclipse here in the mountains of western North Carolina. Instead of enjoying the eclipse at home, I will be volunteering as a docent at the Pisgah Astronomical Research Institute in Rosman, North Carolina. Post readers might recall PARI as it was the\u2026","rel":"","context":"In "Current Events"","block_context":{"text":"Current Events","link":"https:\/\/swling.com\/blog\/category\/current-events\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/PARI-1024x768.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/PARI-1024x768.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/PARI-1024x768.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":26802,"url":"https:\/\/swling.com\/blog\/2017\/06\/sky-and-telescope-observe-augusts-eclipse-with-your-am-radio\/","url_meta":{"origin":27678,"position":5},"title":"Sky and Telescope: \u201cObserve\u201d August\u2019s Eclipse with Your AM Radio","author":"Thomas","date":"June 30, 2017","format":false,"excerpt":"(Source: Sky and Telescope via Sheldon Harvey) When the Moon's shadow glides across the U.S. on August 21st, you'll have have a chance to hear the eclipse as it happens. Solar eclipses are more than remarkable visual astronomical phenomena; they\u2019re pretty interesting from a radio viewpoint too. Should overcast skies\u2026","rel":"","context":"In "AM"","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/12\/AM-Dial-Digital-Grundig-Mediumwave-MW-lg-1024x623.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/12\/AM-Dial-Digital-Grundig-Mediumwave-MW-lg-1024x623.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/12\/AM-Dial-Digital-Grundig-Mediumwave-MW-lg-1024x623.jpg?resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/27678","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=27678"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/27678\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=27678"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=27678"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=27678"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}