Next Article in Journal
A New Method for Automated Clearcut Disturbance Detection in Mediterranean Coppice Forests Using Landsat Time Series
Next Article in Special Issue
Comparison of Surface Solar Irradiance from Ground Observations and Satellite Data (1990–2016) over a Complex Orography Region (Piedmont—Northwest Italy)
Previous Article in Journal
Conductor Reconstruction for Dynamic Line Rating Using Vehicle-Mounted LiDAR
Previous Article in Special Issue
Estimating Fractional Snow Cover in Open Terrain from Sentinel-2 Using the Normalized Difference Snow Index
Article

Comparing Measured Incoming Shortwave and Longwave Radiation on a Glacier Surface with Estimated Records from Satellite and Off-Glacier Observations: A Case Study for the Forni Glacier, Italy

Department of Environmental Science and Policy, Università degli Studi di Milano, 20133 Milan, Italy
*
Author to whom correspondence should be addressed.
Remote Sens. 2020, 12(22), 3719; https://doi.org/10.3390/rs12223719
Received: 13 October 2020 / Revised: 2 November 2020 / Accepted: 9 November 2020 / Published: 12 November 2020
(This article belongs to the Special Issue Recent Advances in Cryospheric Sciences)
The development of methods for quantifying meltwater from glaciated areas is very important for better management of water resources and because of the strong impact of current and expected climate change on the Alpine cryosphere. Radiative fluxes are the main melt-drivers, but they can generally not be derived from in situ measures because glaciers are usually located in remote areas where the number of meteorological stations is very low. For this reason, focusing, as a case study, on one of the few glaciers with a supraglacial automatic weather station (Forni Glacier), we investigated methods based on both satellite records and off-glacier surface observations to estimate incoming short- and long-wave radiation at the glacier surface (SWin and LWin). Specifically, for SWin, we considered CM SAF SARAH satellite gridded surface solar irradiance fields and data modeled by cloud transmissivity parametrized from both CM SAF COMET satellite cloud fractional cover fields and daily temperature range observed at the closest off-glacier station. We then used the latter two data sources to derive LWin too. Finally, we used the estimated SWin and LWin records to assess the errors obtained when introducing estimated rather than measured incoming radiation data to quantify glacier melting by means of an energy balance model. Our results suggest that estimated SWin and LWin records derived from satellite measures are in better agreement with in situ observations than estimated SWin and LWin records parametrized from observations performed at the closest off-glacier station. Moreover, we find that the former estimated records permit a significantly better quantification of glacier melting than the latter estimated ones. View Full-Text
Keywords: radiative fluxes; cloud fractional cover; daily temperature range; satellite data; SARAH; COMET; AWS1-Forni station; Forni Glacier radiative fluxes; cloud fractional cover; daily temperature range; satellite data; SARAH; COMET; AWS1-Forni station; Forni Glacier
Show Figures

Graphical abstract

MDPI and ACS Style

Senese, A.; Manara, V.; Maugeri, M.; Diolaiuti, G.A. Comparing Measured Incoming Shortwave and Longwave Radiation on a Glacier Surface with Estimated Records from Satellite and Off-Glacier Observations: A Case Study for the Forni Glacier, Italy. Remote Sens. 2020, 12, 3719. https://doi.org/10.3390/rs12223719

AMA Style

Senese A, Manara V, Maugeri M, Diolaiuti GA. Comparing Measured Incoming Shortwave and Longwave Radiation on a Glacier Surface with Estimated Records from Satellite and Off-Glacier Observations: A Case Study for the Forni Glacier, Italy. Remote Sensing. 2020; 12(22):3719. https://doi.org/10.3390/rs12223719

Chicago/Turabian Style

Senese, Antonella; Manara, Veronica; Maugeri, Maurizio; Diolaiuti, Guglielmina A. 2020. "Comparing Measured Incoming Shortwave and Longwave Radiation on a Glacier Surface with Estimated Records from Satellite and Off-Glacier Observations: A Case Study for the Forni Glacier, Italy" Remote Sens. 12, no. 22: 3719. https://doi.org/10.3390/rs12223719

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop