نتایج جستجو برای: سنجندة toms

تعداد نتایج: 743  

2001
Randall V. Martin Daniel J. Jacob Jennifer A. Logan Isabelle Bey Robert M. Yantosca Amanda C. Staudt Qinbin Li Arlene M. Fiore Bryan N. Duncan Hongyu Liu Paul Ginoux Valerie Thouret

[1] We interpret the distribution of tropical tropospheric ozone columns (TTOCs) from the Total Ozone Mapping Spectrometer (TOMS) by using a global three-dimensional model of tropospheric chemistry (GEOS-CHEM) and additional information from in situ observations. The GEOS-CHEM TTOCs capture 44% of the variance of monthly mean TOMS TTOCs from the convective cloud differential method (CCD) with n...

2007
V. Sivakumar T. Portafaix H. Bencherif S. Godin-Beekmann S. Baldy

The study presents the climatological characteristics of stratospheric ozone observed over Reunion Island using in-situ (ozonesonde and SAOZ) and satellite (UARSHALOE, SAGE-II and TOMS) measurements. It uses colocalised ozonesondes (from September 1992 to February 2005) and SAOZ measurements (from January 1993 to December 2004), SAGE-II data from October 1984 to February 1999 (∼15 years), HALOE...

ژورنال: :نشریه جنگل و فرآورده های چوب 2013
سیاوش کلبی اصغر فلاح شعبان شتایی جویباری جعفر اولادی قادیکلایی

برآورد مشخصه های ساختاری جنگل، از اساسی ترین اطلاعات در مدیریت پایدار و برنامه ریزی جنگل می باشد. در این مطالعه ارتباط بین داده های سنجندة aster و سه مشخصه مهم ساختار جنگل شامل حجم سرپا، سطح مقطع برابر سینه و تعداد درختان در هکتار، در بخشی از جنگل های شمال ایران مورد بررسی قرار گرفت. پیــش پردازش و پردازش های مناسب بر روی داده های طیفی انجام گرفت. پس از برداشت اطلاعات زمینی محاسبات مقادیر حجم، ...

Journal: :Poultry science 2006
R W Moore J A Byrd K D Knape R C Anderson T R Callaway T Edrington L F Kubena D J Nisbet

Previously, an experimental chlorate product (ECP) has been observed to reduce Escherichia coli and Salmonella infections in swine, cattle, and broilers. The following studies were performed to investigate the effects of different concentrations and durations of administering ECP on crop and ceca Salmonella typhimurium (ST) colonization of turkeys. In 2 separate trials, each conducted with 2 re...

Journal: :Archiva zootechnica 2022

Abstract Semen quality and fertility in crossbreeding between white plumage black indigenous turkey hens using artificial insemination were investigated. Eighty-two healthy turkeys, comprising 72 (Thirty-two forty white) 10 toms (five five used. The turkeys grouped into four treatments based on the breeding plans: T1 (White X White hens), T2 (Black Black T3 hens) T4 hens). was harvested from to...

Journal: :Journal of Medical Ethics 1982

2008
R. McPeters M. Kroon G. Labow E. Brinksma D. Balis I. Petropavlovskikh J. P. Veefkind P. K. Bhartia P. F. Levelt

[1] This paper is an overview of the validation of the total column ozone data products from the Ozone Monitoring Instrument (OMI) on board the NASA EOS-Aura satellite. OMI is an imaging UV/visible spectrometer that maps global ozone on a daily basis. There are two ozone products from OMI, one derived using the traditional TOMS retrieval algorithm and another derived using a Differential Optica...

2006
K. Vanicek

This paper presents key results achieved by an analysis of the relation between high-quality simultaneous Dobson, Brewer ground and TOMS-V8, GOME-WFDOAS satellite total ozone observations for Hradec Kralove, Czech Republic. Statistically significant seasonal differences with maxima up to 4% of monthly averages have been found between Dobson and Brewer measurements during the winter/spring month...

2001
O. Torres P. K. Bhartia Paul Ginoux Brent Holben

Observations of backscattered near-ultraviolet radiation from the Total Ozone Mapping Spectrometer (TOMS) on board the Nimbus-7 (1979–92) and the Earth Probe (mid-1996 to present) satellites have been used to derive a long-term record of aerosol optical depth over oceans and continents. The retrieval technique applied to the TOMS data makes use of two unique advantages of near-UV remote sensing...

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