نتایج جستجو برای: tmin

تعداد نتایج: 385  

Journal: :Atmosphere 2022

This paper investigates the annual and seasonal variations in minimum maximum air temperature (Tmin Tmax) precipitation over Kashmir valley, Northwestern Himalayas from 1980–2019 by using innovative trend analysis (ITA), Mann-Kendall (MK), Sen’s slope estimator methods. The results indicated that Tmin Tmax are increasing for all six climatic stations, whereas four of them exhibit significant tr...

Journal: :Frontiers in Earth Science 2021

Rwanda has experienced high temperature rising phenomena over the last decades and hence, highly vulnerable to climate change. This paper examined spatial temporal variations of daily maximum minimum surface air (Tmin Tmax) diurnal range (DTR). It studied variables at monthly, seasonal annual time-scales from 1961 2014. The study applied various statistical methods such as ordinary least-square...

2014
J. Wiegert R. Liseau P. Thébault G. Olofsson A. Mora G. Bryden J. P. Marshall C. Eiroa B. Montesinos D. Ardila J. C. Augereau A. Bayo Aran W. C. Danchi C. del Burgo S. Ertel M. C. W. Fridlund A. V. Krivov G. L. Pilbratt A. Roberge G. J. White S. Wolf

Context. Debris discs around main-sequence stars indicate the presence of larger rocky bodies. The components of the nearby, solar-type binary αCentauri have higher than solar metallicities, which is thought to promote giant planet formation. Aims. We aim to determine the level of emission from debris around the stars in the αCen system. This requires knowledge of their photospheres. Having alr...

2016
J. Wiegert R. Liseau P. Thébault G. Olofsson A. Mora G. Bryden J. P. Marshall C. Eiroa B. Montesinos D. Ardila J. C. Augereau A. Bayo Aran

Context. Debris discs around main-sequence stars indicate the presence of larger rocky bodies. The components of the nearby, solar-type binary αCentauri have higher than solar metallicities, which is thought to promote giant planet formation. Aims. We aim to determine the level of emission from debris around the stars in the αCen system. This requires knowledge of their photospheres. Having alr...

Journal: :ecopersia 0
morteza akbari ph.d. candidate of combat desertification, department of watershed and arid zone management, faculty of rangeland and watershed, gorgan university of agricultural sciences and natural resources, gorgan, iran majid ownegh professor, department of watershed and arid zone management, faculty of range land and watershed, gorgan university of agricultural sciences and natural resources, gorgan, iran hamidreza asgari assistant professor, department of watershed and arid zone management, faculty of range land and watershed, gorgan university of agricultural sciences and natural resources, gorgan, iran amir sadoddin associate professor, department of watershed and arid zone management, faculty of range land and watershed, gorgan university of agricultural sciences and natural resources, gorgan, iran hasan khosravi assistant professor, department of arid and mountainous regions reclamation, faculty of natural resources. university of tehran, tehran, iran

based on spi and rdi indices, changes in droughts in the semi-arid areas of west golestan province was assessed in the gis environment by incorporating data from hashemabad synoptic station and 11 climatic stations. after evaluating the ability of lars-wg5 in the simulation period (1984-2010), downscaling of hadcm3, ipcm, and gfc models was done as a group under scenarios of a1b, a2 and b1 to e...

2007
K. Raja Reddy V. G. Kakani

Successful fruit set depends on several reproductive processes including pollen germination and tube growth processes. An experiment was conducted to determine the effects of temperature on pollen germination characteristics and to identify species/genotypic differences in Capsicum using the cumulative temperature response index (CTRI) concept. Pollen was collected from plants of seven genotype...

Journal: :Applied sciences 2023

Based on monthly precipitation (P), temperature (T) data, and remote sensing images collected from March 2000 to February 2019, this article was constructed reveal the synergistic effect between P T for NDVI in northern China qualitatively quantitatively by using a one-variable linear regression, coefficient of variation, multivariate correlation coefficients, geodetector. The results show that...

Journal: :Forests 2023

Annually resolved temperature records spanning the past few centuries are limited in Southwest China. In this paper, we present a robust 250-year winter minimum reconstruction based on tree rings of Abies georgei Orr from Luoji Mountain, The exhibit significant correlations with temperatures (Tmin) previous November to current March (pNov–cMar). Based relationship, reconstructed pNov-cMar Tmin ...

2017
Tobias G Boatman Tracy Lawson Richard J Geider

Trichodesmium is a globally important marine diazotroph that accounts for approximately 60 - 80% of marine biological N2 fixation and as such plays a key role in marine N and C cycles. We undertook a comprehensive assessment of how the growth rate of Trichodesmium erythraeum IMS101 was directly affected by the combined interactions of temperature, pCO2 and light intensity. Our key findings were...

2017
Anup Rao

We prove new cell-probe lower bounds for dynamic data structures that maintain a subset of {1, 2, ..., n}, and compute various statistics of the set. The data structure is said to handle insertions non-adaptively if the locations of memory accessed depend only on the element being inserted, and not on the contents of the memory. For any such data structure that can compute the median of the set...

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