2014
DOI: 10.1002/2013jd021187
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Spatial variability of surface irradiance measurements at the Manus ARM site

Abstract: The location of the Atmospheric Radiation Measurement (ARM) site on Manus island was chosen because it is very close to the coast, in a flat, near-sea level area of the island, hopefully minimizing the impact of local island effects on the meteorology of the measurements. In this study, we confirm that the Manus site is indeed less impacted by the island meteorology than slightly inland by comparing over a year of broadband surface irradiance and ceilometer measurements and derived quantities at the standard M… Show more

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Cited by 6 publications
(7 citation statements)
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References 44 publications
(45 reference statements)
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“…This occurs primarily under convectively suppressed conditions such as La Nina as documented in McFarlane et al [2005]. Basically there is a strong ENSO influence on Nauru, negligible for Manus, and Darwin [Riihimaki and Long, 2014]. In terms of bias, the performance of the UMD_DX product seems to do better than the MODIS product, while the std is similar.…”
Section: Roadmap To Results Presentationmentioning
confidence: 97%
See 1 more Smart Citation
“…This occurs primarily under convectively suppressed conditions such as La Nina as documented in McFarlane et al [2005]. Basically there is a strong ENSO influence on Nauru, negligible for Manus, and Darwin [Riihimaki and Long, 2014]. In terms of bias, the performance of the UMD_DX product seems to do better than the MODIS product, while the std is similar.…”
Section: Roadmap To Results Presentationmentioning
confidence: 97%
“…[]. Basically there is a strong ENSO influence on Nauru, negligible for Manus, and Darwin [ Riihimaki and Long , ]. In terms of bias , the performance of the UMD_DX product seems to do better than the MODIS product, while the std is similar.…”
Section: Resultsmentioning
confidence: 99%
“…The spatial representativeness of a surface site greatly depends on the time scale considered—hours, days, months—as temporal averaging strongly reduces the mismatch between point observation and surrounding area mean [e.g., Zhang et al , ; Wang et al , ; Hakuba et al , ]. Spatial variability in SSR on the subgrid scale is mainly caused by variability in cloud cover and cloud type [e.g., Long and Ackermann , ; Barnett et al , ], as well as altitude, local topography, and surface characteristics surrounding the site [e.g., Hay , ; Tovar et al , ; Riihimaki and Long , ]. The use of multiple sites to approximate a grid cell mean substantially enhances the spatial representativeness [e.g., Barnett et al , ; Li et al , ; Journée et al , ; Hakuba et al , ], but is hardly feasible in most parts of the world due to insufficient coverage by surface sites.…”
Section: Introductionmentioning
confidence: 99%
“…Together, this paves the way to a fully global assessment of site-specific spatial representativeness.The spatial representativeness of a surface site greatly depends on the time scale considered-hours, days, months-as temporal averaging strongly reduces the mismatch between point observation and surrounding area mean [e.g., Zhang et al, 2010;Wang et al, 2012;Hakuba et al, 2013a]. Spatial variability in SSR on the subgrid scale is mainly caused by variability in cloud cover and cloud type [e.g., Long and Ackermann, 1995;Barnett et al, 1998], as well as altitude, local topography, and surface characteristics surrounding the site [e.g., Hay, 1984;Tovar et al, 1995;Riihimaki and Long, 2014]. The use of multiple sites HAKUBA ET AL.…”
mentioning
confidence: 99%
“…Unprecedented long-term time series of cloud and precipitation observations have been collected at these sites. These long-term ARM observations are widely used for a variety of purposes, such as characterizing cloud microphysics and their radiative impacts, improving process-level understanding of cloud life cycles, and model evaluations (Xie et al 2004;Ovtchinnikov et al 2006;Henderson and Pincus 2009;Riihimaki and Long 2014).…”
Section: Introductionmentioning
confidence: 99%