搜索结果: 1-15 共查到“知识库 理学 2001”相关记录93条 . 查询时间(0.266 秒)
ESSD: 青藏高原陆地蒸散发时空变化趋势特征（2001-2018）（图）
青藏高原 陆地蒸散发 时空变化
font style='font-size:12px;'>
2023/1/17
陆地蒸散发（Evapotranspiration, ET）是陆表和植被向大气输送水汽通量的总和，主要包括土壤和水体表面蒸发、植被冠层截留降水或露水蒸发、植被蒸腾以及冰雪升华等，是地表和大气间能量和水分交换的主要过程，深刻影响着地球表层物理、化学和生物过程，是地球多圈层相互作用的关键过程。在全球范围内，约60%的降水量是通过陆地蒸散发方式回到大气中，因此陆地蒸散发是仅次于降水的陆地水循环的第二大组成...
利用2001—2015年的MODIS NDVI数据和同期气象数据，分别在年际和月际尺度上分析林地、草地、耕地和其他用地NDVI的变化及其对气候变化的响应特征。结果表明：1）内蒙古地区的NDVI存在明显的地域性差异，总体呈现由东到西递减的特征；2）内蒙古地区NDVI整体呈增长趋势，增长率由高到低依次为：耕地、草地、林地和其他用地；3）近15年中，内蒙古地区整体呈现降水增多的趋势，温度变化不明显；4）...
SPATIAL AND TEMPORAL VARIATION OF LAND SURFACE TEMPERATURE IN FUJIAN PROVINCE FROM 2001 TO 2015
Land surface temperature, Savitzky Golay (S-G) filter, Slope analysis, Spatial and temporal variations, Fujian province
font style='font-size:12px;'>
2018/5/14
Land surface temperature (LST) is an essential parameter in the physics of land surface processes. The spatiotemporal variations of LST on the Fujian province were studied using AQUA Moderate Resoluti...
2001—2015年间广西壮族自治区防城港市热岛效应时空变化研究
防城港市 地表温度(LST) 热岛强度 城市热岛比例指数
font style='font-size:12px;'>
2018/4/10
为研究广西壮族自治区防城港市2001—2015年间热岛效应的时空变化规律,利用遥感监测防城港市15 a来城市热岛效应的演变特征。选用2001年、2008年和2015年获取的3期陆地卫星(Landsat5 TM和Landsat8 OLI)遥感数据,反演防城港市地表温度(land surface temperature,LST); 设置热岛强度及热岛比例指数2个评价指标,从热岛强度的时空分布和面积变化...
2001年昆仑山口西MS8.1地震对周围断层的应力影响数值分析
昆仑山口西地震 同震效应 库仑应力 有限元模拟 等效体力方法
font style='font-size:12px;'>
2019/1/8
大地震的发生往往会引起周围区域形变场和应力场变化，且对临近断层上的应力状态也有影响.2001年11月4日，昆仑山口西发生了半个世纪以来中国最大的MS8.1级地震.本文基于已有的滑动模型，建立了三维含地形高程的横向不均匀性椭球型地球有限元模型，采用等效体力方法，分析了此次MS8.1地震产生的全球同震位移和应力场变化.与解析方法相比，该模型考虑了地形、Moho面起伏和地球介质横向不均匀性；与一般的有限...
Temperature distribution analysis of July 2001 Mt. Etna eruption observed by the airborne hyperspectral sensor MIVIS
remote-sensing volcano monitoring thermal infrared dual-band technique
font style='font-size:12px;'>
2015/9/17
On 17th and 18th July 2001, several fractures opened on Mt. Etna southern flank generating different lava flows
spreading both in Valle del Bove and towards Nicolosi. On 29th July the image spectrome...
A microseismic study in a low seismicity area of Italy: the Città di Castello 2000-2001 experiment
microseismicity low-angle normalfault seismic gap seismic hazard
font style='font-size:12px;'>
2015/9/17
Recent seismological studies contribute to better understand the first order characteristics of earthquake occurrence
in Italy, identifying the potential sites for moderate to large size earthquakes....
A microseismic study in a low seismicityarea: the 2001 site-response experimentin the Città di Castello Basin (Italy)
dense seismic array weak motion ambient noise basin geometry urban area
font style='font-size:12px;'>
2015/9/17
A site response experiment was performed in the basin of Città di Castello (a small town in Central Italy) in May 2001. This study is part of a project on the evaluation of seismic hazard in seismogen...
2001 Bhuj-Kachchh earthquake:surface faulting and its relation with neotectonics and regional structures,Gujarat,Western India
surface rupture Kachchh earthquake thrust fault
font style='font-size:12px;'>
2015/9/16
Primary and secondary surface deformation related to the 2001 Bhuj-Kachchh earthquake suggests that thrusting movement took place along an E-W fault near the western extension of the South Wagad Fault...
The oscillatory behaviour of the aftershocks rate of the 2001 Bhuj earthquake, India: observation and interpretation
aftershocks Bhuj earthquake Omori'sLaw GBA array Lg magnitude
font style='font-size:12px;'>
2015/9/14
A damaging earthquake of Mw 7.7, which struck the Bhuj region of India on January 26, 2001, was followed by a large number of aftershocks. The aftershock data available at Gauribidanur Seismic Array S...
Quantitative analysis of the 1981 and 2001 Etna flank eruptions: a contribution for future hazard evaluation and mitigation
flank eruptions future hazard evaluation and mitigation
font style='font-size:12px;'>
2015/8/27
Lava flows produced during Etna flank eruptions represent severe hazards for the nearby inhabited areas, which can be protected by adopting prompt mitigation actions, such as the building of diversion...
Application of BET_EF at Mount Etna: a retrospective analysis (years 2001-2005)
Statistical analysis Collections
font style='font-size:12px;'>
2015/8/27
Advances in volcano monitoring and forecasting need a multidisciplinary collaborative framework. In light of this, a Bayesian Event Tree (BET) approach was performed by the application of the BET for ...
2001年昆仑山口西地震能量辐射源的频率域台阵技术分析
2001年 昆仑山口西 地震能量辐射源 频率域台阵技术分析
font style='font-size:12px;'>
2013/4/17
2001年昆仑山口西地震能量辐射源的频率域台阵技术分析。
2001—2011年云南勐海三化螟种群动态规律
三化螟 种群动态 水稻害虫 云南
font style='font-size:12px;'>
2012/11/6
三化螟是云南西双版纳地区重要水稻害虫.研究于2001—2011年每年1—8月在勐海进行,采用黑光灯诱杀技术,对三化螟成虫种群数量进行系统调查.研究发现,从2001年以来,三化螟种群呈现逐年增长趋势.2011年三化螟种群数量达到历史最高记录,其在8月主要高峰期记录到成虫198 480头/hm2.三化螟种群每年有2次高峰期,2次高峰期出现的时间在每年的5—8月.主高峰期与次高峰期发生的先后次序和出现的...
A Change in the Lightcurve of Kuiper Belt Contact Binary (139775) 2001 QG298
Change Lightcurve f Kuiper Contact Binary
font style='font-size:12px;'>
2011/10/11
New observations show that the lightcurve of Kuiper belt contact binary (139775) 2001 QG298 has changed substantially since the first observations in 2003. The 2010 lightcurve has a peak-to-peak photo...