Accurate surface measurements of different parameters at the InteRface between the atmosphere and ice/snow surface: radiation FLuxes, surface temperatures and precipatiOn at the plateau station Concordia

Acronimo
AIR-FLOC
Codice
OSS-04
Anno
2023
Area di ricerca
Atmospheric sciences
Tematica specifica di ricerca
radiative balance
Regione di interesse
Antartide, East Antarctic Plateau, Dome C
Sito web progetto
PI
Maurizio Busetto
Istituzione PI
CNR-ISAC
Sito web istituzionale
https://www.isac.cnr.it/
Altre Istituzioni e soggetti coinvolti
Ca Foscari University
Consistenza del team ricerca
Stato progetto
In corso
Stazioni principali usate
Concordia
Il progetto

The aims of this research program is to keep accurate measurements of different physical variables characterizing the Antarctic Plateau surface:
surface down-welling and up-welling radiative fluxes, characteristic of the air-snow interface, snow precipitation and surface temperatures, fluxes of cosmic
rays and solar activities through the facilities implemented at Concordia Station. Here, one of the few polar nodes of the Baseline Surface Radiation
Network (BSRN) operates since Jan 2006, providing surface state-of-the-art measurements of broadband short-wave (solar) radiation components (global,
direct, diffuse and reflected) and of thermal radiation (emitted by atmosphere and surface). These measurements provide year-round complete information
on radiative regime on the East-Antarctic Plateau. Radiative fluxes represent an important input for both mass balance and regional climate models.
Moreover, surface irradiance datasets are needed to validate satellite radiometry and useful to calibrate and validate several other satellite
observations. Narrow-band solar radiation measurements (UV, VIS and NIR fluxes) will be implemented and/or extended using techniques/instrumentation
developed/acquired in the frame of previous PNRA projects or put at disposal.
The same applies to the precipitation isotopic analysis: precipitation data are rare and difficult to obtain. Long summer periods without precipitation
enhance surface snow metamorphism. The most part of accumulation results from a limited number of events originating from the coastal area and moving north to south. Accumulation at Concordia is produced also from diamond dust and hoar frost, mostly related to local thermodynamic conditions. Daily precipitation sampling for isotopic measurements have been continuously carried out at Dome C since 2008; it would be of primary importance to
maintain the continuity of this unique temporal series, considering that Concordia is the only station in Antarctica hosting this type of observations
and sampling.

Immagini
  • Motivazione, importanza della ricerca
    Obiettivi della proposta
    Attività svolta e risultati raggiunti
    Prodotti