Comments on: As Sunset Approaches…Let’s Talk Solar Radiation http://icestories.exploratorium.edu/dispatches/as-sunset-approaches%e2%80%a6let%e2%80%99s-talk-solar-radiation/ Fri, 29 Oct 2010 21:18:41 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Jan http://icestories.exploratorium.edu/dispatches/as-sunset-approaches%e2%80%a6let%e2%80%99s-talk-solar-radiation/comment-page-1/#comment-4555 Jan Sun, 05 Sep 2010 19:17:57 +0000 http://icestories.exploratorium.edu/dispatches/?p=2278#comment-4555 This important as any changes in the amount of radiation reaching the earthcan be the difference between being in an ice age or not. This important as any changes in the amount of radiation reaching the earthcan be the difference between being in an ice age or not.

]]> By: kaila http://icestories.exploratorium.edu/dispatches/as-sunset-approaches%e2%80%a6let%e2%80%99s-talk-solar-radiation/comment-page-1/#comment-4358 kaila Mon, 02 Aug 2010 05:15:54 +0000 http://icestories.exploratorium.edu/dispatches/?p=2278#comment-4358 This is some great information! This is some great information!

]]> By: Paul Jackson http://icestories.exploratorium.edu/dispatches/as-sunset-approaches%e2%80%a6let%e2%80%99s-talk-solar-radiation/comment-page-1/#comment-4184 Paul Jackson Tue, 18 May 2010 08:12:01 +0000 http://icestories.exploratorium.edu/dispatches/?p=2278#comment-4184 Thanks for sharing this. I think pyranometers are a good solution against solar radiation. Hope they aren't too expensive and can be used by ordinary people, too. Thanks for sharing this. I think pyranometers are a good solution against solar radiation. Hope they aren’t too expensive and can be used by ordinary people, too.

]]> By: Nick Morgan http://icestories.exploratorium.edu/dispatches/as-sunset-approaches%e2%80%a6let%e2%80%99s-talk-solar-radiation/comment-page-1/#comment-3848 Nick Morgan Sun, 21 Mar 2010 20:16:46 +0000 http://icestories.exploratorium.edu/dispatches/?p=2278#comment-3848 Well I'm not really sure how far reaching the quake in Chile was. I don't have anything to base it on but I imagine if it did have any effect it would be extremely minimal. By just looking at the solar data that we have, I don't think we could distinguish a change on that scale. That being said, maybe they would be able to see something after the data is processed and analyzed back at the ESRL in Boulder. Well I’m not really sure how far reaching the quake in Chile was. I don’t have anything to base it on but I imagine if it did have any effect it would be extremely minimal. By just looking at the solar data that we have, I don’t think we could distinguish a change on that scale. That being said, maybe they would be able to see something after the data is processed and analyzed back at the ESRL in Boulder.

]]> By: Turtle Haste http://icestories.exploratorium.edu/dispatches/as-sunset-approaches%e2%80%a6let%e2%80%99s-talk-solar-radiation/comment-page-1/#comment-3839 Turtle Haste Wed, 17 Mar 2010 02:37:33 +0000 http://icestories.exploratorium.edu/dispatches/?p=2278#comment-3839 Perfect! I'll share with the kids and we'll walk it out for comparison. Our length at 35.05 N is running 82 cm as we approach equinox and our angle using an antique brass astrolabe is 55-degrees. We are working with tools of historical mariners to compare them to current as well as measuring the sun. Al helped us with this project for the past two years but we haven't had a reading of the length/angle so close to equinox before. A new question came up after Chile's quake. Students are wondering as to how much, if it will be measurable that is, will the angle change as a result of the minor shifting? Any thoughts? Our project page is under Sun Shadow Data at the ANDRILL Project Circle website: http://web.me.com/lhuffman/Project_Circle/Welcome_.html Perfect! I’ll share with the kids and we’ll walk it out for comparison. Our length at 35.05 N is running 82 cm as we approach equinox and our angle using an antique brass astrolabe is 55-degrees. We are working with tools of historical mariners to compare them to current as well as measuring the sun. Al helped us with this project for the past two years but we haven’t had a reading of the length/angle so close to equinox before. A new question came up after Chile’s quake. Students are wondering as to how much, if it will be measurable that is, will the angle change as a result of the minor shifting? Any thoughts?

Our project page is under Sun Shadow Data at the ANDRILL Project Circle website: http://web.me.com/lhuffman/Project_Circle/Welcome_.html

]]> By: Nick Morgan http://icestories.exploratorium.edu/dispatches/as-sunset-approaches%e2%80%a6let%e2%80%99s-talk-solar-radiation/comment-page-1/#comment-3813 Nick Morgan Tue, 09 Mar 2010 19:43:12 +0000 http://icestories.exploratorium.edu/dispatches/?p=2278#comment-3813 Hi Turtle, Well it's been cloudy and pretty disturbed weather lately. But the elevation sun angle is at 4.9 degrees right now above the horizon. But, if you do the math by using the angle of the sun and length of the stick, it should equal 1/Tan(4.9). So about 11 or 12 feet? Hi Turtle,

Well it’s been cloudy and pretty disturbed weather lately. But the elevation sun angle is at 4.9 degrees right now above the horizon. But, if you do the math by using the angle of the sun and length of the stick, it should equal 1/Tan(4.9). So about 11 or 12 feet?

]]> By: Turtle Haste http://icestories.exploratorium.edu/dispatches/as-sunset-approaches%e2%80%a6let%e2%80%99s-talk-solar-radiation/comment-page-1/#comment-3805 Turtle Haste Tue, 09 Mar 2010 03:06:55 +0000 http://icestories.exploratorium.edu/dispatches/?p=2278#comment-3805 Thank you for this! We have been collecting shadow lengths here in Albuquerque and other places in the world for 3 years to demonstrate angle of isolation and are just this year we are using thermochrons to compare the ambient air temperature to solar angle. Although this is a group of middle school students, they will find your post helpful in understanding why we study the sun. If you were to measure the shadow of the sun from a 1-meter stick, how long would you expect it to be at this point so close to sunset? Thank you for this! We have been collecting shadow lengths here in Albuquerque and other places in the world for 3 years to demonstrate angle of isolation and are just this year we are using thermochrons to compare the ambient air temperature to solar angle. Although this is a group of middle school students, they will find your post helpful in understanding why we study the sun. If you were to measure the shadow of the sun from a 1-meter stick, how long would you expect it to be at this point so close to sunset?

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