نتایج جستجو برای: while precipitation has no trend therefore

تعداد نتایج: 5792349  

1998
S. James

In a new approach to the theory of integration over Wess-Zumino su-permanifolds, we suggest that a fundamental principle is their consistency with an " Ethereal Conjecture " that asserts the topology of the superman-ifold must be generated essentially from its bosonic submanifold. This naturally leads to a theory of " ectoplasmic " integration based on super p-forms. One consequence of this app...

2017
Alfred Awotwi Geophrey Kwame Anornu Jonathan Quaye-Ballard Thompson Annor Eric Kwabena Forkuo

The Lower Pra River Basin (LPRB), located in the forest zone of southern Ghana has experienced changes due to variability in precipitation and diverse anthropogenic activities. Therefore, to maintain the functions of the ecosystem for water resources management, planning and sustainable development, it is important to differentiate the impacts of precipitation variability and anthropogenic acti...

Abstract Long-term observational data are essential for detecting and understanding local, regional and global climate change. The goal of this paper is to consider climate data of west of the Caspian Sea for any trends in Annual means of 2m temperature and precipitation at the stations of Anzali, Rasht, Astara and Lahijan for 1956-2018 period. Some inconsistencies in the data were found. Our ...

2014
Xin Yang Zhanqing Li

This study analyzes 15 years of Tropical Rainfall Measuring Mission (TRMM) satellite data, together with surface observations of thunderstorms and visibility, to study trends and relationships between aerosols and thunderstorms in southeast China. TRMM data used are from the lightning imaging sensor (LIS) and the precipitation radar (PR). Surface data are human-observed thunderstormoccurrence a...

2013
Li Ren Phillip Arkin Thomas M. Smith Samuel S.P. Shen

[1] The trends of global precipitation in 1900–2005 are evaluated using a historical precipitation reconstruction and coupled model simulations, Coupled Model Intercomparison Project 5 (CMIP5) and Coupled Model Intercomparison Project Phase 3. A significant increasing trend in the global oceanic precipitation is identified in both the reconstruction and models. The trend from the reconstructed ...

Ghasem Azizi, Mohammad Mahdi Abadijoo Ravari, Mostafa Karimi,

Introduction The study of tree rings is one of the most widely used methods of climate reconstruction for centuries and millennia, but the occurrence of climatic anomalies such as global warming in recent decades has caused divergence problem in the series of tree rings in some areas. Which challenges the ability of this proxy to regenerate the climate. The “divergence problem” is the differen...

2010
M. I. P. de Lima S. C. P. Carvalho P. de Lima

This work investigates recent changes in precipitation patterns manifested in long annual and monthly precipitation time series recorded in Portugal. The dataset comprises records from 14 meteorological stations scattered over mainland Portugal and the Portuguese North Atlantic Islands of Madeira and Azores; some of the time series date back to the 19th century. The data were tested for trends ...

Journal: :Sustainability 2021

The Tuul River Basin is the most important socioeconomic and political base area of Mongolia. Therefore, studying interrelationships between changes in ecohydrological processes this basin its land cover great importance for maintaining sustainability environment. This study investigated annual average air temperature, total precipitation, river discharge variability, at selected stations by us...

In this research, the impact of a carbon sequestration project, in the Hossein Abad Plain in Southern Khorasan Province of Iran, on the status of water and wind erosion was evaluated. The study area has a harsh climatic condition with low annual precipitation and is prone to well-known 120-day winds in summer. Since 2005, various soil conservation treatments (plantations, over-sowing, plantatio...

2010
TIANMING WANG XIAOJUN KOU YOUCAI XIONG PU MOU JIANGUO WU JIANPING GE

The relationship between vegetation and precipitation has been studied extensively, but little is known about its mechanistic linkage to agro-ecosystem sustainability. In this study, we used 250 m MODIS NDVI 16-day composite data and precipitation data for the period 2001–2005 to evaluate the connection between vegetation and precipitation in the Jinghe River watershed of the central Loess Plat...

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