[1] Recently, against the backdrop of current climate, several regional studies have investigated applicability Clausius–Clapeyron relation to scaling relationship between extreme precipitation intensity and surface air temperature. Nevertheless, temperature on a global scale is still unclear. We assess, for first time, daily using in-situ data. The increased monotonically with at high latitudes decreased in tropics. Similarly, middle low temperatures temperatures; this decrease could be...

Abstract Potential changes in the availability of water resources are one greatest concerns relating to global climate warming. Socio-economic developments will also influence use and demands. This study was conducted evaluate potential withdrawals under various socio-economic change scenarios. In current paper, which presents first part study, future projected according driving factors scenarios A1b, A2, B1, B2 Special Report on Emission Scenarios (SRES), released for Fourth Assessment...

Abstract The Paris agreement was adopted to hold the global average temperature increase well below 2 °C and pursue efforts limit it 1.5 °C. Here, we investigate event-to-event hydroclimatic intensity, where an event is a pair of adjacent wet dry spells, under future warming scenarios. According set targeted multi-model large ensemble experiments, event-wise intensification will significantly globally for additional 0.5 beyond In high latitudinal regions North American continent Eurasia,...

Abstract This study presents the first global estimates of relative contributions different weather systems, i.e., tropical cyclone, center and front extratropical others, to mean extreme precipitation. An objective method classification precipitating systems was used with a reanalysis data set satellite‐based precipitation product for 2001–2010. Tropical cyclones, cyclones associated fronts, other contribute about 4%, 37%, 59%, respectively, (60°S–60°N) The were found be both in terms...

Changes in water resources availability, as affected by global climate warming, together with changes withdrawal, could influence the world stress situation. In this study, we investigate how situation will likely change under Special Report on Emissions Scenarios (SRES) integrating withdrawal projections. First, potential availability are investigated a multi-model analysis of ensemble outputs six general circulation models (GCMs) from organizations worldwide. The suggests that, while...

© 2025 American Meteorological Society. This is an Author Accepted Manuscript distributed under the terms of default AMS reuse license. For information regarding and general copyright information, consult Copyright Policy (www.ametsoc.org/PUBSReuseLicenses). Corresponding author: F. Joseph Turk, jturk@jpl.nasa.gov

Abstract Future changes in precipitation due to climate change are of great concern society. However, questions such as “Which weather systems will cause which changes?” and “Is the relative importance these likely future?” have not been addressed fully yet. Here we present first global estimates contributions different (i.e., tropical cyclones, extratropical cyclones including fronts, others) annual mean extreme late 21st century using multimodel projections Coupled Model Intercomparison...

Abstract A fully global satellite-based precipitation estimate that can transition across changing Earth surface and complex land/water conditions is an important capability for many hydrological applications, independent evaluation of the derived from weather climate models. This inherently challenging owing to complexity geophysical properties upon which instruments view. To date, these satellite observations originate primarily a variety wide-swath passive microwave (MW) imagers sounders....

Summer monsoon frontal rainfall in East Asia (EA) is crucial for water resources and flood hazards densely populated areas. Recent studies have documented the increasing intensity of summer over recent decades. However, extent ongoing climate change on intensification EA precipitation system remains uncertain. Using an objective method detecting systems, we found a 17 ± 3% increase observed during 1958 to 2015. Climate model simulations with without greenhouse gases suggest that...

Abstract. Midlatitude mixed-phase stratocumulus clouds and their interactions with aerosols remain poorly understood. This study examines the roles of ice processes in those using a large-eddy simulation (LES) framework. Cloud mass becomes much lower presence Wegener–Bergeron–Findeisen (WBF) mechanism compared to that warm clouds. is because while WBF enhances evaporation droplets, low concentration acting as ice-nucleating particles (INPs) cloud number (CINC) prevent efficient deposition...

Abstract Satellite‐based precipitation estimations provide frequent, large‐scale measurements. Deep learning has recently shown significant potential for improving estimation accuracy. Most studies have employed a two‐stage framework, which is sequential architecture of rain/no‐rain binary classification task followed by rain rate regression task. This study proposes novel retrieval framework in these two tasks are simultaneously trained using multi‐task approach (MTL). Furthermore, network...

Abstract Composite front climatology in the western North Pacific is determined using a newly developed 1.0° gridded data set. Here we propose research strategy for determining spatiotemporal distribution of fronts weather chart images published by Japan Meteorological Agency, one major providers region. A preliminarily investigation internal characteristics period 2000–2010 undertaken, and final 4 years are used an analysis to avoid effect any spurious trends. This enables in‐depth analyses...

The Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) standard product version 7 (V7) is evaluated, particularly in terms of extreme event estimation, using rain gauge data high-temporal-resolution over southern Japan. A 1-minute dataset within PR's field-of-view (FOV) desirable for the evaluation. However, such included only one match with near-surface rate estimates (NSR) higher than 50 mm h-1 (extreme NSR). By relaxing spatial and temporal matchup conditions, several...

This article investigates approaches for broccoli harvest time prediction through the application of various machine learning models. study’s experiment is conducted on a commercial farm in Ecuador, and it integrates situ weather growing cycle observations made over seven years. research incorporates models such as persistence, thermal, calendar models, demonstrating their strengths limitations calculating optimal day. Additionally, Recurrent Neural Network (RNN) with Long Short-term Memory...

Abstract Precipitation estimation based on passive microwave (MW) observations from low-Earth-orbiting satellites is one of the essential variables for understanding global climate. However, almost all validation studies such precipitation have focused only surface rate. This study investigates vertical profiles estimated by two MW-based retrieval algorithms, i.e., emissivity principal components (EPC) algorithm and Goddard profiling (GPROF). The condensed water content Global Measurement...

本研究では大規模アンサンブルデータに適したバイアス補正手法として，バイアス保存とトレンド保存を両立する手法を提案し，既往の手法との比較を行った．全国の降雨特性が異なる複数地点で手法の検証を行ったが，概ねどの地点においても提案した手法が従来の手法よりも良好な補正結果を示した．特に，従来の手法では補正結果が顕著に過大になる地点があったが，提案した手法ではそのような過大推定は見られなかった．また，時間単位補正と日単位補正を比較した結果からは，対象とする時間単位以外には誤差が大きく，特に時間単位の補正結果を集計した日単位は非現実的な値となることがあることが示された．流域を対象とした補正結果からは，大規模アンサンブル実験結果の補正により各流域で設定された計画降雨が良好に再現されることが示された．

We produced a new gauge-based analysis of daily precipitation over Japan from 1981 to 2000 on 0.01° grid. Wind-induced undercatch was adjusted at each observation station, and orographic effects were considered in the process spatial interpolation station data gridded product. The resulting validated against observed river discharge data. validation demonstrated that product is reasonable, mostly because adjustment. Based product, receives nearly mm/year average, which approximately 10%...

Two along-track (level 2) satellite precipitation retrievals by the Global Precipitation Measurement (GPM) Microwave Imager (GMI) and Dual Frequency Radar Ku-band (DPR-Ku) two multisatellite products, global mapping of (GSMaP) Integrated Multisatellite Retrievals for GPM (IMERG), are intercompared different cloud types during warm season over western North Pacific region. It is found that biases measurements systematically associated with types. The best agreements passive microwave (PMW)...

Abstract Quantifying time-averaged rain rate, or accumulation, on subhourly time scales is essential for various application studies requiring estimates. This study proposes a novel idea to estimate surface rate based the instantaneous vertical profile observed from low-Earth-orbiting satellites. Instantaneous estimates Tropical Rainfall Measuring Mission (TRMM) Precipitation Radar (PR) are compared with 1-min gauges in North America and Kwajalein atoll warm seasons of 2005–14. Time-lagged...

雨量計観測から降水強度を算出する場合,一般には,観測した降水量を対象時間で割る手法(単純法)が用いられる.転倒ます型雨量計において,単純法は対象時間が短いほど精度が悪い.著者らは,転倒時刻を統計的に推定し,累積降水量の内挿により降水強度を算出する手法(内挿法)を開発した.本研究では,ディスドロメータの観測から雨量計の模擬観測データを作成し,単純法と内挿法の精度を検証した.内挿法は単純法より優れており,特に降水強度算出対象時間が短い場合に精度の差が大きいことが分かった.また,内挿法では,雨量計記録時間分解能が短いほど精度が向上することが示された.1時間分解能の記録しかない場合において,転倒発生時刻の推定を改良することで,内挿法における1時間降水強度の算出精度をさらに改善することに成功した.