30 years of synoptic observations from Neumayer Station with links to datasets
Fuente:
PANGAEA
Enregistré dans:
| Auteurs principaux: | , , , , |
|---|---|
| Format: | Dataset Open Access |
| Langue: | en |
| Publié: |
PANGAEA
2012
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1867171811338223616 |
|---|---|
| author | Rimbu, Norel Lohmann, Gerrit König-Langlo, Gert Necula, Cristian Ionita, Monica |
| author_facet | Rimbu, Norel Lohmann, Gerrit König-Langlo, Gert Necula, Cristian Ionita, Monica |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | High temporal resolution (three hours) records of temperature, wind speed and sea level pressure recorded at Antarctic research station Neumayer (70°S, 8°W) during 1982–2011 are analysed to identify oscillations from daily to intraseasonal timescales. The diurnal cycle dominates the three-hourly time series of temperature during the Antarctic summer and is almost absent during winter. In contrast, the three-hourly time series of wind speed and sea level pressure show a weak diurnal cycle. The dominant pattern of the intraseasonal variability of these quantities, which captures the out-of-phase variation of temperature and wind speed with sea level pressure, shows enhanced variability at timescales of ~ 40 days and ~ 80 days, respectively. Correlation and composite analysis reveal that these oscillations may be related to tropical intraseasonal oscillations via large-scale eastward propagating atmospheric circulation wave-trains. The second pattern of intraseasonal variability, which captures in-phase variations of temperature, wind and sea level pressure, shows enhanced variability at timescales of ~ 35, ~ 60 and ~ 120 days. These oscillations are attributed to the Southern Annular Mode/Antarctic Oscillation (SAM/AAO) which shows enhanced variability at these timescales. We argue that intraseasonal oscillations of tropical climate and SAM/AAO are related to distinct patterns of climate variables measured at Neumayer. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_804156 |
| institution | PANGAEA |
| language | en |
| publishDate | 2012 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | 30 years of synoptic observations from Neumayer Station with links to datasets Rimbu, Norel Lohmann, Gerrit König-Langlo, Gert Necula, Cristian Ionita, Monica AWI_Meteo; Dronning Maud Land, Antarctica; Georg von Neumayer; GVN; Meteorological Long-Term Observations @ AWI; Monitoring station; MONS; Neumayer_based; NEUMAYER III High temporal resolution (three hours) records of temperature, wind speed and sea level pressure recorded at Antarctic research station Neumayer (70°S, 8°W) during 1982–2011 are analysed to identify oscillations from daily to intraseasonal timescales. The diurnal cycle dominates the three-hourly time series of temperature during the Antarctic summer and is almost absent during winter. In contrast, the three-hourly time series of wind speed and sea level pressure show a weak diurnal cycle. The dominant pattern of the intraseasonal variability of these quantities, which captures the out-of-phase variation of temperature and wind speed with sea level pressure, shows enhanced variability at timescales of ~ 40 days and ~ 80 days, respectively. Correlation and composite analysis reveal that these oscillations may be related to tropical intraseasonal oscillations via large-scale eastward propagating atmospheric circulation wave-trains. The second pattern of intraseasonal variability, which captures in-phase variations of temperature, wind and sea level pressure, shows enhanced variability at timescales of ~ 35, ~ 60 and ~ 120 days. These oscillations are attributed to the Southern Annular Mode/Antarctic Oscillation (SAM/AAO) which shows enhanced variability at these timescales. We argue that intraseasonal oscillations of tropical climate and SAM/AAO are related to distinct patterns of climate variables measured at Neumayer. |
| title | 30 years of synoptic observations from Neumayer Station with links to datasets |
| topic | AWI_Meteo; Dronning Maud Land, Antarctica; Georg von Neumayer; GVN; Meteorological Long-Term Observations @ AWI; Monitoring station; MONS; Neumayer_based; NEUMAYER III |
| url | https://doi.org/10.1594/PANGAEA.804156 |