Data Access

Upward Longwave Irradiance

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ARCSIX data (ICARTT format)
From	2024-05-24
To	2024-08-14
Files contain both USI and ULI variables at high temporal resolution. Use the Meloni et al. (2026) citation below

The Principal Investigator of 'Upward Longwave Irradiance' is: Daniela Meloni. If you intend to use the following data in a scientific publication please consult with her via e-mail @ daniela.meloni@enea.it
Whenever using these data please cite them appropriately

Summary:

Citation:	Meloni D., Di Sarra A., Muscari G., Di Iorio T., Pace G., Calì Quaglia F., Ciardini V., Tosco M., Bagiacchi P., Cannataro G., Iaccarino A. (2026). High Resolution Upward Shortwave and Longwave Irradiances at the Thule High Arctic Atmospheric Observatory (THAAO_USLI_HR) [Dataset]. Agenzia Nazionale per le nuove tecnologie, l’energia e lo sviluppo economico sostenibile (ENEA). https://doi.org/10.13127/thaao/usli_hr

	Meloni, D., Di Sarra, A., Di Iorio, T., Pace, G., Muscari, G., Iaccarino, A., & Calì Quaglia, F. (2022). Upward Longwave Irradiance at the Thule High Arctic Atmospheric Observatory (THAAO_ULI) [Data set]. Agenzia Nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile (ENEA). https://doi.org/10.13127/THAAO/ULI

	Detailed information on the dataset is available here: Meloni, D., Calì Quaglia, F., Ciardini, V., Di Bernardino, A., Di Iorio, T., Iaccarino, A., Muscari, G., Pace, G., Scarchilli, C., and di Sarra, A. (2024). Shortwave and longwave components of the surface radiation budget measured at the Thule High Arctic Atmospheric Observatory, Northern Greenland, Earth Syst. Sci. Data, 16, 543–566. https://doi.org/10.5194/essd-16-543-2024
Project(s):	PRA2019-0009 - ECAPAC - Effects of changing albedo and precipitation on the Arctic climate PNRA 18/00122 - C - CLARA2, Nubi e radiazione in Artide ed in Antartide PNRA 14/00016 - Linea B_OASIS-YOPP: Osservazioni della Stratosfera Artica a sostegno di YOPP Collaborazione Base THULE Dipartimentale INGV MACMAP PNRA 2013/C3.03 - SVAAP - Studio del Vapor Acqueo nell'Atmosfera Polare in ambito NDACC-SVAAP PNRA 2009/A3.04 - Osservazioni dei cambiamenti chimici e fisici nelle atmosfere polari delle stazioni NDACC
Data owner:	ENEA Italian National Agency for New Technologies, Energy and Sustainable Economic Development INGV National Institute of Geophysics and Volcanology
License:	Creative Commons Attribution 4.0 International (CC-BY-4.0)
Variable:	Upward Longwave Irradiance (W/m²)
Coverage:	Location: Thule High Arctic Atmospheric Observatory, Pituffik, Thule Air Base, Greenland; Latitude: 76.5; Longitude: -68.8; Height: 222m amsl; Date/Time Start: 2016-07-15 21:00:00 - Date/Time End: 2025-12-31 23:00:00