Meteorologische Zeitschrift最新文献_第5页

Actual versus geostrophic wind: statistics from 12‑year measurements at the 280 m high Hamburg Weather Mast 实际风与地转风的对比：280 m高汉堡气象桅杆

IF 1.2 4区地球科学

Meteorologische Zeitschrift Pub Date : 2023-01-01 DOI: 10.1127/metz/2023/1097

B. Brümmer

引用次数: 0

Rising solar and thermal greenhouse radiation drive rapid warming over the continents 不断上升的太阳和温室热辐射导致各大洲迅速变暖

IF 1.2 4区地球科学

Meteorologische Zeitschrift Pub Date : 2023-01-01 DOI: 10.1127/metz/2022/1148

R. Philipona, C. Marty, Bruno Duerr, A. Ohmura

引用次数: 0

Evidence of linear relationships between clear‑sky indices in photosynthetically active radiation and broadband ranges 光合有效辐射晴空指数与宽带范围之间线性关系的证据

IF 1.2 4区地球科学

Meteorologische Zeitschrift Pub Date : 2023-01-01 DOI: 10.1127/metz/2023/1203

William Wandji Nyamsi, Yves-Marie Saint-Drenan, John A. Augustine, Antti Arola, Lucien Wald

{"title":"Evidence of linear relationships between clear‑sky indices in photosynthetically active radiation and broadband ranges","authors":"William Wandji Nyamsi, Yves-Marie Saint-Drenan, John A. Augustine, Antti Arola, Lucien Wald","doi":"10.1127/metz/2023/1203","DOIUrl":"https://doi.org/10.1127/metz/2023/1203","url":null,"abstract":"This study provides empirical relationships between photosynthetically active radiation (PAR) and broadband clear‑sky indices at ground level for both the PAR global irradiance and its direct component. Once multiplied by the irradiance in clear‑sky conditions, the clear‑sky index provides the irradiance under cloudy conditions. The relationships are developed by the means of radiative transfer simulations of various realistic atmospheric states including both ice and water cloud phases. For the direct component, the PAR clear‑sky index is equal to the broadband clear‑sky index. For global irradiance, several linear relationships are proposed depending on the availability of cloud properties namely cloud phase and cloud optical depth. The developed relationships are validated numerically and experimentally by using ground-based measurements from the SURFRAD network in the U.S.A. Overall, it has been found, a squared correlation coefficient R 2 $R^{2}$ close to 1.00 and a relative bias (relative root mean square error) in absolute value less than 3 % (6 %) with respect to the means of the relevant measurements, demonstrating a high level of accuracy of the proposed relationships.","PeriodicalId":49824,"journal":{"name":"Meteorologische Zeitschrift","volume":"25 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141507620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent hot and dry summers in Germany in comparison to climate projections 与气候预测相比，德国最近的夏季炎热干燥

IF 1.2 4区地球科学

Meteorologische Zeitschrift Pub Date : 2023-01-01 DOI: 10.1127/metz/2022/1152

K. Stanley, N. Leps, S. Hänsel, Lara Klippel, F. Imbery, Andreas Walter

引用次数: 0

The impact of offshore wind farms on the latent heat flux 海上风电场对潜热通量的影响

IF 1.2 4区地球科学

Meteorologische Zeitschrift Pub Date : 2023-01-01 DOI: 10.1127/metz/2023/1171

A. Platis, Yann Büchau, Sary Zuluaga, J. Bange

引用次数: 0

A machine learning approach on the investigation of the scale dependent relation of CAPE and precipitation 用机器学习方法研究CAPE与降水的尺度依赖关系

IF 1.2 4区地球科学

Meteorologische Zeitschrift Pub Date : 2023-01-01 DOI: 10.1127/metz/2023/1130

Annette Rudolph, P. Névir

引用次数: 0

A stochastic model of the model error to improve the ICON‑D2‑EPS ensemble forecasts 改进ICON‑D2‑EPS集合预测的模型误差随机模型

IF 1.2 4区地球科学

Meteorologische Zeitschrift Pub Date : 2023-01-01 DOI: 10.1127/metz/2023/1174

M. Sprengel, C. Gebhardt

引用次数: 0

The footprint of heat waves and dry spells in the urban climate of Würzburg, Germany, deduced from a continuous measurement campaign during the anomalously warm years 2018–2020 德国维尔茨堡城市气候中热浪和干旱期的足迹是从2018年至2020年异常温暖年份的持续测量活动中推断出来的

IF 1.2 4区地球科学

Meteorologische Zeitschrift Pub Date : 2023-01-01 DOI: 10.1127/metz/2023/1151

C. Hartmann, A. Moser-Reischl, Mohammad A. Rahman, Eleonora Franceschi, Miriam von Strachwitz, S. Pauleit, H. Pretzsch, T. Rötzer, H. Paeth

引用次数: 1

Characteristics and phenomena of the urban climate 城市气候的特征和现象

IF 1.2 4区地球科学

Meteorologische Zeitschrift Pub Date : 2023-01-01 DOI: 10.1127/metz/2023/1153

W. Kuttler, S. Weber

引用次数: 0

Towards a spatial snow climatology for Switzerland: Comparison and validation of existing datasets 建立瑞士空间积雪气候学：现有数据集的比较与验证

IF 1.2 4区地球科学

Meteorologische Zeitschrift Pub Date : 2023-01-01 DOI: 10.1127/metz/2023/1210

Simon C. Scherrer, Monika Göldi, Stefanie Gubler, Christian R. Steger, Sven Kotlarski

{"title":"Towards a spatial snow climatology for Switzerland: Comparison and validation of existing datasets","authors":"Simon C. Scherrer, Monika Göldi, Stefanie Gubler, Christian R. Steger, Sven Kotlarski","doi":"10.1127/metz/2023/1210","DOIUrl":"https://doi.org/10.1127/metz/2023/1210","url":null,"abstract":"In the European Alps, surface snow cover is of high relevance and a major factor for environmental, ecological and economical systems. The provision of accurate and timely climatological information on the spatio-temporal distribution of Alpine snow cover is hence an important yet challenging task of modern climate services. To assess the quality and the reliability of existing snow cover products in this region, we here compare daily snow cover datasets over Switzerland from the low-resolution ERA5 reanalysis, two intermediate resolution reanalyses (ERA5-Land and COSMO-REA6) and a high-resolution AVHRR-derived remote sensing product with three high-resolution 1 km offline snow models for the past 30 to 60 years. We focus on the parameters snow water equivalent (SWE) and daily snow coverage (snow/no snow). In the challenging Alpine terrain, all datasets are able to broadly represent the mean and the seasonal cycle of SWE and the number of snow days. They also agree on the direction of the trends. Decreasing mean SWE and snow day trends are found for the whole of Switzerland and all subregions in the period 1982–2019. Regarding interannual variability and trends, ERA5, ERA5-Land and COSMO-REA6 seem to perform reasonably well in most regions although the absolute and relative biases can be considerable. Especially ERA5-Land strongly overestimates SWE at high elevations. The biases are often larger in the southern Alps than in and north of the Alps. Most datasets, including the high-resolution ones, have problems correctly representing small SWE values at low elevations. The results indicate that in order to estimate absolute SWE or snow days with a reasonable accuracy, or to conduct a detailed study of the elevation dependence of snow, a km‑scale model that assimilates snow measurements is highly preferable. MeteoSwiss and the WSL Institute for Snow and Avalanche Research SLF are currently setting up a 1 km daily operational climatological product covering the period from 1961 to today.","PeriodicalId":49824,"journal":{"name":"Meteorologische Zeitschrift","volume":"43 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141523251","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0