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Does the diurnal temperature range respond to changes in the cosmic ray flux?


Laken, Benjamin A.; Čalogović, Jaša
Does the diurnal temperature range respond to changes in the cosmic ray flux? // Environmental Research Letters, 8 (2013), 045018-1 doi:10.1088/1748-9326/8/4/045018 (međunarodna recenzija, članak, znanstveni)


Naslov
Does the diurnal temperature range respond to changes in the cosmic ray flux?

Autori
Laken, Benjamin A. ; Čalogović, Jaša

Izvornik
Environmental Research Letters (1748-9326) 8 (2013); 045018-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
solar activity; cosmic rays; ground level enhancement; Forbush decrease; cloud; Diurnal temperature range; Monte Carlo

Sažetak
Recent studies have suggested that measurements of the diurnal temperature range (DTR) over Europe may provide evidence of a long-hypothesized link between the cosmic ray (CR) flux and cloud cover. Such propositions are interesting, as previous investigations of CR–cloud links are limited by data issues including long-term reliability and view-angle artifacts in satellite-based cloud measurements. Consequently, the DTR presents a further independent opportunity for assessment. Claims have been made that during infrequent high-magnitude increases (ground level enhancements, GLE) and decreases (Forbush decreases, Fd) in the CR flux significant anti-correlated DTR changes may be observed, and the magnitude of the DTR deviations increases with the size of the CR disturbance. If confirmed this may have important consequences for the estimation of natural climate forcing. We analyze these claims, and conclude that no statistically significant fluctuations in DTR (p < 0.05) are observed. Using detailed Monte Carlo significance testing we show that past claims to the contrary result from a methodological error in estimating significance connected to the effects of sub-sampling.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
007-0000000-1362 - Eruptivni procesi u Sunčevoj atmosferi (Bojan Vršnak, )

Ustanove
Geodetski fakultet, Zagreb

Profili:

Avatar Url Jaša Čalogović (autor)

Citiraj ovu publikaciju

Laken, Benjamin A.; Čalogović, Jaša
Does the diurnal temperature range respond to changes in the cosmic ray flux? // Environmental Research Letters, 8 (2013), 045018-1 doi:10.1088/1748-9326/8/4/045018 (međunarodna recenzija, članak, znanstveni)
Laken, B. & Čalogović, J. (2013) Does the diurnal temperature range respond to changes in the cosmic ray flux?. Environmental Research Letters, 8, 045018-1 doi:10.1088/1748-9326/8/4/045018.
@article{article, year = {2013}, pages = {045018-1-045018-}, DOI = {10.1088/1748-9326/8/4/045018}, keywords = {solar activity, cosmic rays, ground level enhancement, Forbush decrease, cloud, Diurnal temperature range, Monte Carlo}, journal = {Environmental Research Letters}, doi = {10.1088/1748-9326/8/4/045018}, volume = {8}, issn = {1748-9326}, title = {Does the diurnal temperature range respond to changes in the cosmic ray flux?}, keyword = {solar activity, cosmic rays, ground level enhancement, Forbush decrease, cloud, Diurnal temperature range, Monte Carlo} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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