Campbell John US Forest Service

271 Mast Rd. Durham NH 03824 USA

(603)-868-7643 Hubbard Brook Experimental Forest LTER

U.S. Forest Service 271 Mast Rd. Durham NH 03824 USA

603-868-7643 603-868-7604 http://www.hubbardbrook.org Amey Bailey associated researcher snow snow depth snow course

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http://www.hubbardbrook.org/data/data_policy.php?firstname=metacat&lastname=user&affiliation=Other&view=1&accept=1&comments=none&phone=6035551212&email=none@loopback.com&target=snod.txt Rain gage 1 -71.725403 -71.725403 43.952332 43.952332 1600 1600 foot Rain gage 2 -71.727371 -71.727371 43.954929 43.954929 1840 1840 foot Rain gage 3 -71.728661 -71.728661 43.958450 43.958450 2350 2350 foot Rain gage 4 -71.720886 -71.720886 43.954964 43.954964 1850 1850 foot Rain gage 5 -71.718826 -71.718826 43.959530 43.959530 2200 2200 foot Rain gage 6 -71.736122 -71.736122 43.956898 43.956898 2450 2450 foot Rain gage 7 -71.734261 -71.734261 43.953083 43.953083 1980 1980 foot Rain gage 8 -71.729630 -71.729630 43.951141 43.951141 1680 1680 foot Rain gage 9 -71.743134 -71.743134 43.956051 43.956051 2500 2500 foot Rain gage 10 -71.739853 -71.739853 43.952545 43.952545 2200 2200 foot Rain gage 11 -71.735443 -71.735443 43.950092 43.950092 1800 1800 foot Rain gage 12 -71.766586 -71.766586 43.927490 43.927490 2030 2030 foot Rain gage 13 -71.770317 -71.770317 43.920696 43.920696 2510 2510 foot Rain gage 14 -71.766808 -71.766808 43.920692 43.920692 2390 2390 foot Rain gage 15 -71.762962 -71.762962 43.922684 43.922684 2530 2530 foot Rain gage 16 -71.768112 -71.768112 43.915970 43.915970 2820 2820 foot Rain gage 17 -71.758690 -71.758690 43.918678 43.918678 2930 2930 foot Rain gage 18 -71.725000 -71.725000 43.957000 43.957000 1920 1920 foot Rain gage 19 -71.759903 -71.759903 43.929214 43.929214 1950 1950 foot Rain gage 20 -71.758179 -71.758179 43.923462 43.923462 2600 2600 foot Rain gage 21 -71.752663 -71.752663 43.923042 43.923042 2620 2620 foot Rain gage 22 (Headquarters location) -71.701859 -71.701859 43.943943 43.943943 830 830 foot Year 1956 Ongoing Ongoing John Campbell

PO Box 640 Durham NH 03824 USA

(603)-868-7643 jlcampbell@fs.fed.us U.S Forest Service

U.S. Forest Service 271 Mast Rd. Durham NH 03824 USA

603-868-7643 603-868-7604 http://www.hubbardbrook.org Hubbard Brook LTER

Snow courses are located near each of the standard rain gage openings, and are numbered according to the rain gage. Each snow course is a forested area of about 1/4 ha.

Standard rain gages are used. Snow courses are located near each of the standard rain gage openings, and are numbered according to the rain gage. Each snow course is a forested area of about 1/4 ha. Each measurement consists of ten sample points 2 m apart along a line. On the next date, a parallel line is used, 2 m from the previous line. At each point, snow depth and water content are measured using a Mt. Rose snow tube. The ten snow depth measurements are averaged.

Snow course data have been collected approximately weekly at a network of standard rain gages at the Hubbard Brook Experimental Forest from 1956 to the present when there was snow on the ground.

uid=HBR,o=lter,dc=ecoinformatics,dc=org all public read snod Snow depth data at Hubbard Brook lter snod.txt 1 \n\r column , http://www.hubbardbrook.org/data/data_policy.php?firstname=metacat&lastname=user&affiliation=Other&view=1&accept=1&comments=none&phone=6035551212&email=none@loopback.com&target=snod.txt

-snow depth in tenths of inch (i.e. 24 = 2.4 inch) -0 values show that no snow was present. -99 values indicate that snow was not measured at that station. -The number of snow courses measured in any year has varied, first as new locations were added, and then as the network was reduced to save time. -Watershed 2 cutting in 1965 did not affect snowcourses. -Watershed 4 cutting in 1970-74 eliminated forest over snowcourses 6, 7, and 8. -Snowcourse 6 was moved into adjacent watershed 5. The others had already been dropped. -Watershed 5 cutting in 1984 destroyed the new snowcourse 6. Snowcourse 9 replaced it. There had been little difference between them for the 4 years of mutual record. -Regression analysis after 1967 determined which southfacing snowcourses to drop. Similar analysis was done after 1973 for the northfacing side. -After 1983 a decision was made to continue only two snowcourses on each side. One low elevation and one high elevation course were chosen on each side. -Snow course 15 is windblown and is not a representative site.

WINTER The year in which most of the snow-covered period falls YYYY 1 DATE Sample date YYMMDD 1 STA1 Snow depth at gage 1 oneTenthInch 1 integer -99 Data missing or not taken STA2 Snow depth at gage 2 oneTenthInch 1 integer -99 Data missing or not taken STA3 Snow depth at gage 3 oneTenthInch 1 integer -99 Data missing or not taken STA4 Snow depth at gage 4 oneTenthInch 1 integer -99 Data missing or not taken STA5 Snow depth at gage 5 oneTenthInch 1 integer -99 Data missing or not taken STA6 Snow depth at gage 6 oneTenthInch 1 integer -99 Data missing or not taken STA6 Snow depth at gage 6 oneTenthInch 1 integer -99 Data missing or not taken STA7 Snow depth at gage 7 oneTenthInch 1 integer -99 Data missing or not taken STA8 Snow depth at gage 8 oneTenthInch 1 integer -99 Data missing or not taken STA9 Snow depth at gage 9 oneTenthInch 1 integer -99 Data missing or not taken STA10 Snow depth at gage 10 oneTenthInch 1 integer -99 Data missing or not taken STA11 Snow depth at gage 11 oneTenthInch 1 integer -99 Data missing or not taken STA12 Snow depth at gage 12 oneTenthInch 1 integer -99 Data missing or not taken STA13 Snow depth at gage 13 oneTenthInch 1 integer -99 Data missing or not taken STA14 Snow depth at gage 14 oneTenthInch 1 integer -99 Data missing or not taken STA15 Snow depth at gage 15 oneTenthInch 1 integer -99 Data missing or not taken STA16 Snow depth at gage 16 oneTenthInch 1 integer -99 Data missing or not taken STA17 Snow depth at gage 17 oneTenthInch 1 integer -99 Data missing or not taken STA19 Snow depth at gage 19 oneTenthInch 1 integer -99 Data missing or not taken STA20 Snow depth at gage 20 oneTenthInch 1 integer -99 Data missing or not taken STA21 Snow depth at gage 21 oneTenthInch 1 integer -99 Data missing or not taken STAHQ Snow depth at Headquarters oneTenthInch 1 integer -99 Data missing or not taken A unique measure of length/depth