high
high
medium
high
medium
small
small
expenses
H.
12.
References
BARNES J.C. + BOWLEY C.J., 1974: The Application of ERTS imagery to
mapping Snowcover in the Western United States. Final Report under
Contract NAS 5-21803, Environmental Research & Technology Inc.,
Concord, MA, 77p.
BARNES J.C., SMALLWOOD M.D. + COGAN J.L., 1975: Study to Develop Improved
Spacecraft Methods Using Skylab/EREP Data. Final Report under Contract
NAS 9-13305, Environmental Research & Technology Inc., Concord, MA, 92 p.
BARNES J.C. + BOWLEY C.J., 1977: Study of Near-Infrared Snow Reflectance
Using Skylab S192 Multispectral Scanner Data. ERT Doc. 1474F, Final Re-
port, prepared for Dept. of Commerce, Nat. Oceanic and Atm. Administration,
National Environmental Satellite Service, Washington D.C. 20233.
BARTOLUCCI L.A., HOFFER R.M. + LUTHER S.G., 1975: Snowcover Mapping by
Maschine Processing of Skylab and Landsat MSS Data. in: Operational Appli-
cations of Satellite Snowcover Observations NASA SP-391, Washington D.C.
BROWN A.J., 1975: Interpretation of Snowcover from Satellite Imagery for
Use in Mater Supply Forecasts in the Sierra Nevada. in: Operational
Applications of Satellite Snowcover Observations NASA Sp-391,
Washington D.C.
CHANG T.C. 4 GLOERSEN P., 1975: Microwave Emission from Dry and Wet Snow.
in: Operational Applications of Satellite Snowcover Observations NASA
SP-391, Washington D.C.
DALLAM W.C., 1975: Digital Snow Mapping Technique Using LANDSAT Data and
General Electric Image 100 System. in: Operational Applications of Satellite
Snowcover Observations NASA SP-391, Mashington D.C.
FRITZ S., 1962: Snow Survey from Satellite Pictures. Proc. lst Int. Symp.
on Rocket and Satellite Meteorology, Washington D.C.
GFELLER R.E., 1975: Untersuchungen zur automatisierten Schneeflächenbe-
stimmung mit Multispektral-Aufnahmen des Erderkundungssatelliten ERTS-1.
Ph.D.-Thesis, Univ. of Zurich.
. GIDDINGS J.C. * LA CHAPELLE E., 1961: Diffusion Theory Applied to Radiant
Energy Distribution and Albedo of Snow. Journal of Geographical Research,
Vol. 66, No 1.
GUDMANDSEN P., 1977: Measurement of Snow and Ice Cover. Remote Sensing
Applications in Agriculture and Hydrology, Part B, RS/A-B/77/B3, Ispra-
Courses, Italy.
HAEFNER H. + GEISER U., 1975: Kartierung von Hohengrenzen zwischen Mt.
Blanc und Gotthard-Massiv mit Skylab-EREP-Daten. Geographica Helvetica,
No 3.
. HAEFNER H., 1977: Measurement of Snow and Ice Cover. Remote Sensing
Applications in Agriculture and Hydrology, Part B, Ispra-Courses, Italy.