A multi-model analysis of the resolution influence on precipitation climatology in the Gulf Stream region

Feng, Xuelei; Huang, Bohua; Kirtman, Ben P.; Kinter, James L.; Chiu, Long S.

doi:10.1007/s00382-016-3167-7

Cited by 8 publications

(14 citation statements)

References 43 publications

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“…This is different from Feng et al . [], who found for the Athena simulations [ Jung et al ., ] the largest increase around 50W over the SST front. Although both EC‐Earth and the Athena simulations are based on the ECMWF model, the model versions differ.…”

Section: Resultsmentioning

confidence: 99%

“…Decomposing the precipitation into stratiform (bottom right) and convective (bottom left) reveals that the change in stratiform precipitation is similar to Feng et al . [], although slightly more displaced to the south, but that the increase in convective precipitation at 50°W over the SST front is much less and more pronounced southward at 70°W and 30°S. Note, however, that the division between stratiform and convective precipitation is very much dependent on the details of the parameterization of convection.…”

Section: Resultsmentioning

confidence: 99%

“…We note that Feng et al . [] concluded the beneficial effect of model resolution by comparing to TRMM only. We assume there is no reason for preferring either of the observational products.…”

Section: Resultsmentioning

confidence: 99%

“…[] showed that an increase in horizontal resolution leads to better representation of precipitation extremes above the land part of the United States. [ Feng et al ., ] showed that increased resolution results in a better precipitation climatology over the Gulf stream region. However, the impact on extreme precipitation over that region is still an open question.…”

Section: Introductionmentioning

confidence: 96%

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Resolution dependence of extreme precipitation and deep convection over the Gulf Stream

Scher

Haarsma

Vries

et al. 2017

J Adv Model Earth Syst

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Modeled wintertime precipitation over the Atlantic Gulf Stream region is shown to be sensitive to the horizontal resolution of the driving Global Circulation Model (GCM). By contrasting simulations with the EC‐Earth GCM over a range of horizontal resolutions (T159, T319, T799), it is shown that especially the precipitation extremes become more populated if resolution is higher. Higher resolution also appears to strengthen the communication from the sea surface toward the troposphere. With increasing resolution, deep convection over the Gulf Stream region, diagnosed via wind‐convergence and vertical motion, occurs more frequently and the former is in better agreement with observations. Likewise the frequency increase of the precipitation extremes over the region for increasing resolution makes them agree better with observations, despite large natural variability and discrepancies between different observational sources.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

See 2 more Smart Citations

Resolution dependence of extreme precipitation and deep convection over the Gulf Stream

Scher

Haarsma

Vries

et al. 2017

J Adv Model Earth Syst

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“…Previous studies of the eddy‐resolving CCSM3.5 model found great improvement on the simulation of the present‐day precipitation. Particularly in the North Atlantic region where mesoscale eddies are important for the simulation of the Gulf Stream, the position and amount of precipitation climatology are substantially improved (Feng et al, ). In addition, the high‐resolution CCSM3.5 also simulates more intense air‐sea coupling, resulting in larger precipitation‐SST covariability (Kirtman et al, , ).…”

Section: Introductionmentioning

confidence: 99%

Impact of Ocean Eddy Resolution on the Sensitivity of Precipitation to CO₂ Increase

Kirtman

Soden

et al. 2018

Geophysical Research Letters

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The past few years have seen a growing investment in the development of global eddy‐resolving ocean models, but the impact of incorporating such high ocean resolution on precipitation responses to CO2 forcing has yet to be investigated. This study analyzes precipitation changes from a suite of Geophysical Fluid Dynamics Laboratory models incorporating eddy‐resolving (0.1°), eddy‐permitting (0.25°), and eddy‐parameterizing (1°) ocean models. The incorporation of eddy resolution does not challenge the large‐scale structure of precipitation changes but results in substantial regional differences, particularly over ocean. These oceanic differences are primarily driven by the pattern of sea surface temperature (SST) changes with greater sensitivity in lower latitudes. The largest impact of ocean resolution on SST changes occurs in eddy‐rich regions (e.g., boundary currents and the Southern Ocean), where impact on precipitation changes is also found to various degrees. In the Gulf Stream region where previous studies found considerable impact of eddy resolution on the simulation of climatological precipitation, we do not find such impact from the Geophysical Fluid Dynamics Laboratory models, but we do find substantial impact on precipitation changes. The eddy‐parameterizing model projects a banded structure common to the Coupled Model Intercomparison Project (Phase 5) models, whereas the higher‐resolution models project a poleward shift of precipitation maxima associated with an enhanced Gulf Stream warming. Over land, precipitation changes are generally not very sensitive to ocean resolution. In eastern North America adjacent to the Gulf Stream region, moderate differences are found between resolutions. We discuss the mechanisms of land differences, which arise through the simulation of both climatological SST and SST changes.

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Precipitation characteristic changes due to global warming in a high‐resolution (16 km) ECMWF simulation

Feng

Liu

Xie

et al. 2019

Quart J Royal Meteoro Soc

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Changes in precipitation amount, intensity and frequency in response to global warming are examined using global high‐resolution (16 km) climate model simulations based on the European Centre for Medium‐range Weather Forecasts (ECMWF) Integrated Forecast System (IFS) conducted under Project Athena. Our study shows the increases of zonal‐mean total precipitation in all latitudes except the northern subtropics (15°–30°N) and southern subtropics‐to‐midlatitudes (30°–40°S). The probability distribution function (PDF) changes in different latitudes suggest a higher occurrence of light precipitation (LP; ≤1 mm/day) and heavy precipitation (HP; ≥30 mm/day) at the expense of moderate precipitation reduction (MP; 1–30 mm/day) from Tropics to midlatitudes, but an increase in all categories of precipitation in polar regions. On the other hand, the PDF change with global warming in different precipitation climatological zones presents another image. For all regions and seasons examined, there is an HP increase at the cost of MP, but LP varies. The reduced MP in richer precipitation zones resides in the PDF peak intensities, which linearly increase with the precipitation climatology zones. In particular in the Tropics (20°S to 20°N), the precipitation PDF has a flatter distribution (i.e. HP and LP increases with MP reduction) except for the Sahara Desert. In the primary precipitation zones in the subtropics (20°–40°) of both hemispheres, precipitation over land switches toward higher intensity (HP increases, but MP and LP decrease) in both winter and summer, while precipitation over ocean in both seasons shows a flattening trend in the intensity distribution. For the major precipitation zones of the mid‐to‐high latitude belt (40°–70°), PDF of precipitation tends to be flatter over ocean in summer, but switches toward higher intensities over land in both summer and winter, as well as over ocean in winter.

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A multi-model analysis of the resolution influence on precipitation climatology in the Gulf Stream region

Cited by 8 publications

References 43 publications

Resolution dependence of extreme precipitation and deep convection over the Gulf Stream

Resolution dependence of extreme precipitation and deep convection over the Gulf Stream

Impact of Ocean Eddy Resolution on the Sensitivity of Precipitation to CO₂ Increase

Precipitation characteristic changes due to global warming in a high‐resolution (16 km) ECMWF simulation

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A multi-model analysis of the resolution influence on precipitation climatology in the Gulf Stream region

Cited by 8 publications

References 43 publications

Resolution dependence of extreme precipitation and deep convection over the Gulf Stream

Resolution dependence of extreme precipitation and deep convection over the Gulf Stream

Impact of Ocean Eddy Resolution on the Sensitivity of Precipitation to CO2 Increase

Precipitation characteristic changes due to global warming in a high‐resolution (16 km) ECMWF simulation

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Impact of Ocean Eddy Resolution on the Sensitivity of Precipitation to CO₂ Increase