Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science最新文献_第10页

European ionospheric forecast and mapping 欧洲电离层预报和制图

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00011-3

P. Muhtarov , I. Kutiev , Lj.R. Cander , B. Zolesi , G. de Franceschi , M. Levy , M. Dick

{"title":"European ionospheric forecast and mapping","authors":"P. Muhtarov , I. Kutiev , Lj.R. Cander , B. Zolesi , G. de Franceschi , M. Levy , M. Dick","doi":"10.1016/S1464-1917(01)00011-3","DOIUrl":"10.1016/S1464-1917(01)00011-3","url":null,"abstract":"<div><p>A new technique is developed for forecasting and instantaneous mapping of the ionospheric parameters over Europe, based on analytical presentation of the mapped quantities. The diurnal and seasonal variations of the ionospheric foF2 and M(3000)F2 parameters are represented by a modified version of the regional model ISIRM adjusted to the past measured data. An autoregressive extrapolation of the data from the past month enables the 15-day-ahead forecast of the quiet ionospheric distribution to be performed. In addition, the short-term variations due to geomagnetic activity are defined as a plane surface superimposed on the quiet distribution. This correction is obtained by two plane characteristics as functions of the geomagnetic three-hour Kp index. In this way the 24-hour forecast can be obtain during quiet as well as disturbed ionospheric conditions. The corresponding EIFM software provides a variety of options to perform the short-term forecast depending on availability of the measured ionospheric data and predicted Kp values.</p></div>","PeriodicalId":101026,"journal":{"name":"Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science","volume":"26 5","pages":"Pages 347-351"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1464-1917(01)00011-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85262795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Variations of the number of weak and strong earthquakes for 1977–1998 years and their possible precursors 1977-1998年强震和弱震次数的变化及其可能的前兆

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)95028-7

T.V. Barliaeva, M.I. Pudovkin, A.L. Morozova

引用次数: 2

Mechanisms of auroral particle acceleration 极光粒子加速的机制

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(00)00086-6

G. Haerendel

引用次数: 4

Ozone photochemistry in the condensed phase 凝聚态臭氧光化学

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00037-X

L. Schriver-Mazzuoli

引用次数: 1

The effect of the 1999 total solar eclipse on the ionosphere 1999年日全食对电离层的影响

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00016-2

R.A. Bamford

{"title":"The effect of the 1999 total solar eclipse on the ionosphere","authors":"R.A. Bamford","doi":"10.1016/S1464-1917(01)00016-2","DOIUrl":"10.1016/S1464-1917(01)00016-2","url":null,"abstract":"<div><p>The localised “night” created as the moon's shadow travelled across the Earth during the total solar eclipse of 11th August 1999, produced changes in the ionosphere across Europe that were monitored with a variety of modern instrumentation. The passage of the 100km wide, super-sonic lunar shadow offered the opportunity to examine the changes in electron densities, radio absorption, neutral wind patterns and the possible generation of waves in the layers of the ionosphere. All these for an event for which the cause of the disturbance can be calculated with accuracy. Reported here are the results from the vertical ionosondes located under the path of totality and in the partial eclipse region and dual frequency GPS TEC measurements. The ionosondes showed that even in the partial shadow the peak electron densities of the F & E ionospheric layers decreased by as much as 20–35%. The TEC measurements showed that the vertical equivalent line integrated electron density dropped by 15% at the 97% partial eclipse north of the path of totality. The consequences of these observations are discussed in relation to making model predictions.</p></div>","PeriodicalId":101026,"journal":{"name":"Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science","volume":"26 5","pages":"Pages 373-377"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1464-1917(01)00016-2","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80440822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 30

Atmospheric NO from space: the SCIAMACHY capabilities 来自太空的大气NO: SCIAMACHY能力

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00044-7

C. Muller, J.C. Lambert, C. Lippens, M. Van Roozendael

{"title":"Atmospheric NO from space: the SCIAMACHY capabilities","authors":"C. Muller, J.C. Lambert, C. Lippens, M. Van Roozendael","doi":"10.1016/S1464-1917(01)00044-7","DOIUrl":"10.1016/S1464-1917(01)00044-7","url":null,"abstract":"<div><p>The SCanning Imaging Absorption spectroMeter for Atmospheric ChartograpHY (SCIAMACHY) has been proposed in 1988 as a payload of the ESA earth observation satellite ENVISAT 1, which is scheduled for launch in 2001 for a four-year mission. SCIAMACHY operates in eight channels covering the UV, the visible and two infrared regions. Recent developments in the testing of the instrument now enable not only the full use of channel 1 (240 nm–314 nm) at a required high level of performance but in some special cases its extension to 220 nm. This instrumental improvement allows new objectives to be addressed in the upper stratoosphere, on top of the already proposed mesospheric and thermospheric investigations of nitric oxide. Simulations show the instrument capabilities for these studies. These NO observations will be performed in solar occultation, lunar occultation and nadir. Previous NO results are reviewed with an emphasis on results obtained by the infrared solar occultation technique as exemplified by the SPACELAB grille spectrometer and other instruments. The capabilities of SCIAMACHY for mapping the total column of upper atmospheric NO is investigated as well as possibilities to infer NO vertical distribution and transfer properties between the different atmospheric regions.</p></div>","PeriodicalId":101026,"journal":{"name":"Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science","volume":"26 7","pages":"Pages 545-548"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1464-1917(01)00044-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73286845","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The influence of the irregular movements in the lower thermosphere on the ionospheric es-layer by radiometeor observations in Kazan (56°N, 49°E) 喀山（56°N，49°E）射电流星观测结果表明，较低热层的不规则运动对电离层es层的影响

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00028-9

A.N. Fahrutdinova, O.N. Sherstyukov, D.S. Yasnitsky

引用次数: 4

Short-period variations of ionospheric drifts at Collm an their connection with the dynamics of the lower and middle atmosphere 科尔姆电离层漂移的短周期变化及其与中低层大气动力学的关系

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00031-9

N.M. Gavrilov , Ch. Jacobi , D. Kürschner

引用次数: 13

Landslide mapping techniques and their use in the assessment of the landslide hazard 滑坡测绘技术及其在滑坡危险性评价中的应用

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(01)00069-1

M. Parise

引用次数: 110

Small satellites for studies in the lower thermosphere 用于低层热层研究的小卫星

Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science Pub Date : 2001-01-01 DOI: 10.1016/S1464-1917(00)00119-7

G. Laneve

{"title":"Small satellites for studies in the lower thermosphere","authors":"G. Laneve","doi":"10.1016/S1464-1917(00)00119-7","DOIUrl":"10.1016/S1464-1917(00)00119-7","url":null,"abstract":"<div><p>Among the solutions of the problem of filling the gap in aeronomic data at altitudes ranging from 130 to 200 km an experiment based on the exploitation of a tethered satellite deployed for 100 km or more from the Shuttle, has been proposed. However, this solution seems to be still far away from implementation; whereas other methods based on sounding rocket flights and measurements from the ground present problem like the sporadicness and/or scarce spatial coverage of the observations. As an alternative to these previous approaches this paper studies the possibility of using a satellite on a very eccentric orbit (e ≈ 0.5) as a possible alternative, more rewarding in terms of cost and reliability. In addition to the altitude, the Earth's Thermosphere characteristics depend mainly on the latitude and solar local time. Thus we intend to study the rate of variation of these terms as function of the rate of variations of right ascension of the ascending node and perigee argument, in order to evaluate the time necessary for meeting our requirements in terms of latitudinal and solar local time coverage. Then, the characteristics of a suitable orbit in terms of semi-major-axis and inclination can be determined according to the type of study to be performed. Furthermore we intend to analyze the possible difficulties that could arise when the full separation of any effect is afforded with the aim of selecting the orbit, for a single satellite or for a constellation of small satellites, able to minimize the limitations in the spatial and temporal effects separation.</p></div>","PeriodicalId":101026,"journal":{"name":"Physics and Chemistry of the Earth, Part C: Solar, Terrestrial & Planetary Science","volume":"26 4","pages":"Pages 265-273"},"PeriodicalIF":0.0,"publicationDate":"2001-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S1464-1917(00)00119-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80230018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0