From: Subject: Tracking the Duration and Magnitude of Snow Albedo and Temperature coupling during the Ablation Season Date: Sun, 22 May 2005 20:58:39 -0700 MIME-Version: 1.0 Content-Type: multipart/related; type="text/html"; boundary="----=_NextPart_000_0036_01C55F11.07439700" X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0036_01C55F11.07439700 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Content-Location: http://www.agu.org/cgi-bin/SFgate/SFgate?language=English&verbose=0&listenv=table&application=fm04&convert=&converthl=&refinequery=&formintern=&formextern=&transquery=an%3d%22C23A-0979%22&_lines=&multiple=0&descriptor=%2fdata%2fepubs%2fwais%2findexes%2ffm04%2ffm04%7c999%7c3442%7cTracking%20the%20Duration%20and%20Magnitude%20of%20Snow%20Albedo%20and%20Temperature%20coupling%20during%20the%20Ablation%20Season%7cHTML%7clocalhost:0%7c%2fdata%2fepubs%2fwais%2findexes%2ffm04%2ffm04%7c7430951%207434393%20%2fdata2%2fepubs%2fwais%2fdata%2ffm04%2ffm04.txt Tracking the Duration and Magnitude of Snow Albedo = and Temperature coupling during the Ablation Season
2004 Fall=20 = Meeting          
Search=20 Results		 Cite = abstracts as=20 Author(s) (2004), Title, Eos Trans. AGU,
85(47), = Fall=20 Meet. Suppl., Abstract = xxxxx-xx
Your query was:
an=3D"C23A-0979"

HR: 1340h
AN: C23A-0979
TI: Tracking the = Duration and=20 Magnitude of Snow Albedo and Temperature coupling during the = Ablation=20 Season
AU: * Lampkin, D J
EM: = djl22@psu.edu
AF: Derrick J. = Lampkin,=20 215 Walker Bulding, State College, PA 16802 United States =
AU:=20 Nolin, A
EM: nolina@geo.oregonstate.edu
AF: Anne=20 Nolin, 104 Wilkinson Hall, Corvallis, OR 97331 United States=20
AU: Yool, S
EM: yools@email.arizona.edu
AF: Stephen R.=20 Yool, 453C Harvill Bulding, Tucson, AZ 85721 United States =
AB:=20 Remote sensing research has in the last two = decades led to=20 significant progress in monitoring and measuring certain snow = hydrologic=20 processes in particular, estimating the timing of snowmelt run-off = can be=20 improved by monitoring when the snowpack is ripe for melt. = Diagnostic=20 information about the evolving spring time snow pack can be = determined=20 using snow surface optical and thermal properties. Optical and = thermal=20 characteristics can only be useful if changes in these parameters = are=20 indicative of the overall state of the snowpack. This analysis is=20 interested in investigating duration and magnitude of snow surface = albedo=20 and average snow pack temperature through the melt season. = Automated snow=20 surface albedo and average snowpack temperature were acquired from = the=20 Mammoth Mountain Energy Balance Monitoring Site in the California = Sierra=20 Nevada Mountain Range for the melt season of 2002. Incoming and = outgoing=20 shortwave radiation measured from 0.285-2.8=8Dm, and average = snowpack=20 temperature data collected at this site were downloaded from the = Mammoth=20 Mountain Ski Area (MMSA) database website. Surface albedo was = calculated=20 using daily incoming and outgoing direct shortwave radiation. = Maximum snow=20 accumulation occurred at this site on approximately March 24, = 2002.=20 Therefore, analysis of snow surface albedo and average pack = temperature=20 coupling were examined from peak accumulation through June 30, 200 = when=20 the pack was fully depleted. The difference between daily albedo = and=20 average temperature were computed for each day. The first = derivative of=20 albedo and temperature difference was computed for the time series = and=20 used as an indicator of temporal coupling. The first derivative = anomaly=20 time series exhibited strong small perturbations (strong coupling) = through=20 the course of the ablation season with significant variation = occurring on=20 June 3, 2002 when the snowpack had depleted to approximately 80 cm = in=20 depth. After this date, significant decoupling between surface = albedo and=20 snowpack temperature occurs.
DE: 1863 = Snow and=20 ice (1827)
DE: 1640 Remote = sensing
SC:=20 Cryosphere [C]
MN: 2004 AGU Fall=20 Meeting

   New=20 Search

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