Earth and Space Science

Winter Solstice - Citizen Science

Tue Dec 20, 2011 7:56 AM

[size=100]It's Thursday - the kids are bouncing off the wall because break starts tomorrow afternoon.
If you are looking for a way to engage them, please consider participating in my, and my students, Albedo Project.

Participating in the Albedo Project is as simple as taking a digital picture!

1. Put a matte white card or paper on a outdoor, ground surface (or formerly grassy surface). The white surface should fill 1/4 to 1/2 of the total view.
2. Do not cast a shadow on the image.
3. Snap a digital photo. No flash.
**NOTE: we do need to be concerned about overexposure. Use auto adjust for exposure (if you have an EV setting, -1 is good; if you have an ISO setting, 100 is good, avoiding your own or other strong shadows in the photo will also help).
4. Email the photo to
Include the location** (either city/state or lat/long if the photo is not geotagged)

Participate, and invite your friends!

More information at: (where you will also find out that exif and other identifiable data is stripped and not reported in order to preserve privacy. "This year, the winter solstice takes place on Thursday, December 22 at 12:30 p.m. EST. Many people know that the winter solstice marks the day when winter officially stars in the Northern Hemisphere, and when days will start to become incrementally longer. But what exactly is going on?"

Thank you for considering!

kathy gorski

Kathleen Gorski
Kathleen Gorski
9005 Activity Points

Tue Dec 27, 2011 12:51 PM

Awesome Kathy,

Wish I would have read this post prior to our Winter Break. I most certainly will note the site you highlighted and hopefully my scholars can participate in the event next year.

Thanks for sharing,


Lorrie Armfield
Lorrie Armfield
51380 Activity Points

Mon Jan 02, 2012 12:14 PM

Not a problem - we do these during the solstice and equinox, so 4x per year. There's nothing special about those days - just that they help with a hook. The next iteration of our project will be to invite groups that have their own localized maps to submit either their photos or maps to be included.
Thanks for considering!!
~ kathy g

Kathleen Gorski
Kathleen Gorski
9005 Activity Points

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