A. Sample Number
For example: year, personal initials, and a number (06KW-1) but you can label however you want as long as the number is unique (no two are the same).
B. Date & Time of Collection
If you collected ash during an ash fall event please indicate the time ash began falling and when it stopped (i.e. duration of ash collection). We need accurate times to the nearest minute (i.e the time on your cellular phone is usually accurate Alaska Standard Time)
C. Location of Collection
GPS location, map location, street address, general location, whatever you can provide (more detail is better).
D. Dimensions of Container
Give length, width, or diameter of inside edge of container lip. Please specify units (inches, centimeters) e.g. L=12 cm, W= 10 cm, or D = 6 cm.
E. Thickness of Ash Layer
(to the nearest 1/16 inch or 1/2 millimeter )
If you don't have a metric ruler use an inch ruler rather than guessing, it's amazing how easy this is to overestimate. There is a metric ruler on the datasheet that you can cut out and used. The more accurate you are the better the volume calculation will be!
F. Describe surface upon which ash has fallen
Snow, ice, metal roof, wood, etc.
G. Describe weather conditions during ash fall, if known
Wind speed, wind direction, gusty or not, snowfall or rainfall during ash deposition, etc.
If you have photos of your sampling routine or of people doing the sampling
please send them to the address above or if digital, send to email@example.com.
Please only send copies or digital images as they will not be returned. All photos
will be credited to photographer.
Please send samples and sample information to:
USGS/Alaska Volcano Observatory, c/o Tephra Lab
4230 University Dr., Suite 201
Anchorage, AK 99508
For more information contact us, 907-786-7497, firstname.lastname@example.org
Volcano information can be found on our website: http://www.avo.alaska.edu
Thank you for your contribution to volcano science in Alaska!