2024-03-28T10:34:46Zhttp://nsidc.org/api/dataset/metadata/oaioai:nsidc.org/GGD2942019-02-11T19:11:05Zbrokeredfgdc
GGD294Active layer and borehole temperatures from La Foppa rock glaciers, Val Vallaccia, Central Italian AlpsActive layer and borehole temperatures from La Foppa rock glaciers, Val Vallaccia, Central Italian Alps2003-06-181falsehttps://nsidc.org/data/GGD294/versions/1GGD294InvestigatorVia MilanoBormio (SO)ItalyInvestigatorMauroGuglielminmauro.guglielmin@uninsubria.it39 2 67655152Varese21110ItalyEARTH SCIENCECryosphereFrozen GroundPermafrost PERMAFROSTEARTH SCIENCELand SurfaceFrozen GroundPermafrost PERMAFROSTEARTH SCIENCECryosphereFrozen GroundRock Glaciers ROCK GLACIERSEARTH SCIENCELand SurfaceFrozen GroundRock Glaciers ROCK GLACIERSEARTH SCIENCECryosphereSnow/IceSnow/Ice Temperature SNOW/ICE TEMPERATUREEARTH SCIENCECryosphereFrozen GroundSoil Temperature SOIL TEMPERATUREEARTH SCIENCELand SurfaceFrozen GroundSoil Temperature SOIL TEMPERATUREBoreholesBTS MeasurementsContinuous PermafrostDiscontinuous PermafrostMeteorologyRock GlaciersSoil Temperature1993-01-0146.546.51010ContinentEuropeSouthern EuropeItalyVal Vallaccia, Central Italian Alps, ItalyEnglishFGDCFrozen Ground Data Centerhttp://nsidc.org/fgdc/Data Center ContactFGDCUser Servicesnsidc@nsidc.org1-303-492-61991-303-492-2468National Snow and Ice Data CenterCIRES, 449 UCBUniversity of ColoradoBoulderCO80309-0449USAExcelCalderoni, G., Guglielmin, M., Lozej, A., Tellini, C. 1993.
Researches on rock glaciers in the Italian Central Alps
(Valtellina, Sondrio, Italia). International Conference on
Permafrost, VI, Beijing. Proceedings, vol. 1, p. 72-77.
Cannone, N., Guglielmi, M, Smiraglia, C. (1995): Rapporti
tra vegetazione e permafrost discontinuo in ambiente alpino. Val
Vallaccia (Livigno, Sondrio). Rivista Geografica Italiana, 102, 91-111.
Guglielmin, M. (1997): Periglacial Phenomena, permafrost
distribution and glacial evolution in Foscagno area, Livigno
(SO), Italy, In IV Intern. Conference on Geomorphology, Italy, 1997 -Guide for the excursion- Mountain permafrostand slope
stability in the periglacial belt of the Alps', Suppl. Geogr.
Fis. Dinam. Quat. 193, 195-199.
Guglielmin, M. con contributi di A. Notarpietro (1997) Il
Permafrost Alpino. Concetti, morfologia e metodi di
individuazione (con tre indagini esemplificative in Alta
Valtellina). Quaderni di Geodinamica alpina e Quaternaria, CNR, 5, 117 pp.
Guglielmi, M. (1989): I rock glacier del Passo del Foscagno
(Alta Valtellina, Sondrio). Natura Bresciana, 26, 35-47.
Guglielmin, M., Lozej, A., Tellini, C. 1994. Permafrost
distribution and rock glaciers in the Livigno area (Northern
Italy). Permafrost and Periglacial Processes, 5, p. 1-12.
Guglielmin, M. and Tellini, C. (1995) Relazioni tra permafrost
alpino e copertura nevosa: risultati preliminari (area del
Foscagno, Sondrio, Italia). Geogr. Fis. Dinam. Quat. 18, 25-29.
Guglielmin, M., Rossettin G. and Tellini, C. (1997)
Perg?lisol alpin et variations climatiques dans les Alpes
Centrales (valtellina, Italie), IV Intern. Conf. On
Geomorphology, Abstract, Suppl. Geogr. Fis. Din. Quat., III, 1,
192, Submitted to Arctic and Alpine Research.
Guglielmin, M., Smiraglia, C. and Cannone, N. (1997) The rock
glaciers of the Lombardy Alps (Italy) as indicators of mountain
permafrost, IV Intern. Conf. On Geomorphology, Abstract, Suppl.
Geogr. Fis. Din. Quat., III, 1, 193, Submitted to Geomorphology.
Guglielmin, M. and Tellini, C. (1994): Rilevamento del permafrost con il metodo BTS (Bottom Temperature of the Winter
Snow Cover) nell'alta Valtellina (Sondrio, ITALIA).- Geogr. Fis.
Din. Quat., 17, 47-54.
Guglielmin, M. and Tellini, C. (1993): First example of
permafrost mapping with BTS in the Italian Alps (Livigno,
Sondrio, Italy). Acta Naturalia, 29, 1/2, 39-46.
Guglielmin, M. and C. Tellini. 1992. Contributo alla
conoacenza dei rock glaciers delle Alpi Italiane. I rock glaciers
del Livignasco (Alta Valtellina, Sondrio). Riv. Geogr. It., 99,
p. 395-414.
Lozej, A. and Guglielmin, M. 1992. Prospezioni geoelettriche
sul rock glacier de 'La Foppa', Livigno, Sondrio (Italia). GEAM-
Boll. Ass. Min. Subalp., XXIV, 4, dicembre, p. 373-382.The La Foppa site is a glacial cirque located in the upper part of the Val Vallaccia, near Livigno, in the Italian Central Alps. The La Foppa cirque is characterized by five rock glaciers, of which four are active and one is of uncertain activity or is inactive. These rock glaciers, especially the two largest, named La Foppa I and La Foppa II, have been the subject of geophysical investigations (Lozej and Guglielmin, 1992; Guglielmin et al., 1994; Guglielmin 1997) including BTS measurements (bottom temperature of snow; more than 70 measurements between 1990 and 1993) and STG measurements (shallow temperature of ground in summer) (Calderoni et al. 1993; Guglielmin and Tellini 1992, 1994; Guglielmin 1997). The distribution of BTS and STG measurements indicate that above 2800 asl the permafrost is continuous whereas below this elevation it is constrained inside the rock glaciers, where it is not continuous.
Three boreholes have been established. One is in the frontal part of La Foppa I where the BTS values are always lower than -3 degrees C, and where the active layer detected with vertical electrical soundings (V.E.S.) ranges from 0.8 to 2.7 meters. The second borehole is in the central part of La Foppa I, where the BTS values range between -0.5 and -2.1 degrees C, and the V.E.S. indicate an active layer of 3 - 5.5 meters thick. The third borehole is located on the moraine ridge (of Late Glacial age) at 10 meters of the lateral slope of La Foppa I that overlaps the moraine ridge. Here the BTS values and V.E.S. point out the absence of permafrost. Near the third borehole there is a meteorological station that measures air temperature at 4 meters above the ground, snow cover, snow temperature every 20 cm up to 420 cm, precipitation, wind speed and direction, atmospheric pressure, relative humidity, and soil temperature at 2 and 30 cm depth. Borehole data are recorded on data loggers. A sample of the data is presented on the CAPS Version 1.0 CD-ROM. In this data file, data values must be divided by 10 to obtain the correct value.VIEW RELATED INFORMATIONhttps://nsidc.org/data/GGD294/versions/1DocumentationGET DATAmailto:mauro.guglielmin@uninsubria.itGet External DataCEOS IDN DIFVERSION 9.92003-06-182019-02-11NSIDCVersion SummaryNSIDCMinor VersionNSIDCCurrent Version1NSIDCFull Dataset CitationPlease contact the data provider for the citation for these data.NSIDCRetiredfalse