Correction of precipitation based on off-site weather information

Allerup, Peter; Madsen, Henning; Vejen, Flemming

doi:10.1016/s0169-8095(99)00051-4

Cited by 34 publications

(28 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2a). The total annual simulated precipitation (corrected after Allerup et al, 1998Allerup et al, , 2000 for further information about the detailed precipitation correction procedures, see Mernild et al, , 2010a varied from ∼1200 to ∼1800 mm w.eq. y −1 within the catchment.…”

Section: Introductionmentioning

confidence: 99%

Freshwater flux to Sermilik Fjord, SE Greenland

et al. 2010

View full text Add to dashboard Cite

Abstract. Terrestrial inputs of freshwater flux to Sermilik Fjord, SE Greenland, were estimated, indicating ice discharge to be the dominant source of freshwater. A freshwater flux of 40.4 ± 4.9×10 9 m 3 y −1 was found (1999)(2000)(2001)(2002)(2003)(2004)(2005)(2006)(2007)(2008), with an 85% contribution originated from ice discharge (65% alone from Helheim Glacier), 11% from terrestrial surface runoff (from melt water and rain), 3% from precipitation at the fjord surface area, and 1% from subglacial geothermal and frictional melting due to basal ice motion. The results demonstrate the dominance of ice discharge as a primary mechanism for delivering freshwater to Sermilik Fjord. Time series of ice discharge for Helheim Glacier, Midgård Glacier, and Fenris Glacier were calculated from satellitederived average surface velocity, glacier width, and estimated ice thickness, and fluctuations in terrestrial surface freshwater runoff were simulated based on observed meteorological data. These simulations were compared and bias corrected against independent glacier catchment runoff observations. Modeled runoff to Sermilik Fjord was variable, ranging from 2.9 ± 0.4×10 9 m 3 y −1 in 1999 to 5.9 ± 0.9×10 9 m 3 y −1 in 2005. The sub-catchment runoff of the Helheim Glacier region accounted for 25% of the total runoff to Sermilik Fjord. The runoff distribution from the different sub-catchments suggested a strong influence from the spatial variation in glacier coverage, indicating high runoff volumes, where glacier cover was present at low elevations.

show abstract

Section: Introductionmentioning

confidence: 99%

Freshwater flux to Sermilik Fjord, SE Greenland

et al. 2010

View full text Add to dashboard Cite

show abstract

“…roughness), the adjusted amounts are reliable, and probably still underestimated. Allerup et al (2000) argue that precipitation correction in a certain spot can use wind speed data up to 50 km, . Differences of the precipitation adjustment calculated in this study and those reported by Legates (1987), for annual (line), June (interrupted line) and October (dotted line) amounts.…”

Section: Discussionmentioning

confidence: 99%

“…Many scholars have documented the topic during the last decades (Sevruk, 1982(Sevruk, , 1984Legates, 1987;Legates and DeLiberty, 1993;Yang et al, 1998;Allerup et al, 2000;Førland and Hanssen-Bauer, 2000;Bogdanova et al, 2002;Ye et al, 2004;Legates and McCabe, 2005;Sevruk et al, 2009). Through 1970Through -1998, World Meteorological Organization (WMO) conducted two international programmes dedicated to the accuracy of liquid and solid precipitation measurement, thereby acknowledging the importance of the topic (WMO, 1982(WMO, , 1998.…”

Section: Introduction and Objectivesmentioning

confidence: 99%

Climatologic adjustments to monthly precipitation in Romania

Cheval

Baciu

Dumitrescu

et al. 2011

Intl Journal of Climatology

View full text Add to dashboard Cite

This article contributes to better understanding of the precipitation data, analyzing several measurement errors in Romania. Based on the influence of wind speed, solid precipitation rate, and wetting losses, we adjusted the monthly amounts registered at 159 weather stations through 1961-2006. The results emphasize distinct temporal and spatial distributions of the adjustment magnitude. In general, the correction factors increase with altitude and they have high values in the cold season, as they highly depend on wind speed and solid precipitation percentage. In Romania, bias corrections increase monthly precipitation by less than 10% from June to September, by 10-20% in the transition months, and by higher values during the winter.

show abstract

“…1, part c; Table 1) were calculated from Helman-Nipher shield observations corrected according to Allerup et al (1998Allerup et al ( , 2000: since precipitation gauges underestimate solid and liquid precipitation due to aerodynamic errors, corrections are needed (e.g., Yang et al, 1998).…”

Section: Snowmodel Inputmentioning

confidence: 99%

“…The corrected mean total annual precipitation (TAP) for the region was 234 mm w.e. y 21 (corrected after Allerup et al, 1998Allerup et al, , 2000. Observed runoff from May through September varied from 1.…”

mentioning

confidence: 99%