The present work aims to characterize trends in air temperature and precipitation from the late 1930s to 2007 in the Dominican Republic, establishing whether some climate change patterns can be identified in the distribution of climate types of this country. The time series to be analysed present many quality issues and challenges, essentially due to abundance of missing data and inhomogeneous measurements. A number of statistical corrections have hence been applied: time series have been first filtered, then homogenized with respect to purposely built reference series, then completed through multiple imputation. Trend estimation has finally been performed on the annual and monthly scale. The analysis of homogenized and imputed series shows that significant trends occurred since 1930s, both in rain and air temperature. A pattern in the distribution of rain trends is evident in the country during the period 1939–2007, which reflects the influence of the orographic structure of the country on the atmospheric dynamics that dominate in the Caribbean region: significant negative annual trends are detectable in leeward areas, behind the main mountainous chains, while positive trends are generally evident in windward regions, exposed to trade winds. All the analysed series demonstrate an increase in air temperature: in Santo Domingo, minimum air temperature increased 3.0 ± 0.5°C since 1936, while the maximum air temperature increased 1.8 ± 0.4°C in the same period. Furthermore, an increase of rain erosivity can be detected on the South coast of the country, in some areas of the Cordillera Central and in the Northeast. Another important result is the increase of potential evapotranspiration, while significant uniform trends cannot be identified for extreme events.

中文翻译：

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多米尼加共和国的降雨和气温的历史趋势

本工作旨在描述多米尼加共和国从1930年代末到2007年的气温和降水趋势，确定是否可以在该国的气候类型分布中确定某些气候变化模式。要分析的时间序列提出了许多质量问题和挑战，这主要是由于缺少大量数据和测量不均匀所致。因此，已应用了许多统计更正：首先对时间序列进行了过滤，然后相对于有意建立的参考序列进行了均质化，然后通过多次插补完成了该过程。趋势估计终于在年度和月度范围内进行了。对均值和推算序列的分析表明，自1930年代以来，降雨和气温均出现了显着趋势。1939年至2007年期间，该国降雨趋势的分布格局十分明显，这反映了该国地形结构对加勒比地区占主导地位的大气动力学的影响：在背风处可发现明显的负年度趋势在主要山区链后面的地区，而迎风地区通常会受到贸易风的影响，呈现出积极的趋势。所有分析过的系列证明了气温的升高：自1936年以来，在圣多明各，最低气温升高了3.0±0.5°C，而同期最高气温升高了1.8±0.4°C。此外，在该国的南海岸，科迪勒拉中部的某些地区和东北部，可以发现雨水侵蚀力的增加。