A New Method to Estimate the Cover Management Factor on the Loess Plateau in China [PDF]
[Objective] To investigate the combined effect of crop cover and crop management practices on preventing soil loss and improving the accuracy of C-factor estimation. [Methods] Six millet plots with different treatments, i.
LI Qinglan +4 more
core +1 more source
Spatio-temporal Evolution of Land Surface Temperature and Its Response to LULC in the Urban Agglomeration of Central Yunnan [PDF]
[Objective] To investigate the spatial and temporal variations of land surface temperature (LST) in central Yunnan urban agglomeration and its relationship with land use/land cover (LULC) types.
GONG Luping +7 more
core +1 more source
基于气候分析的城市通风系统构建方法初探——以厦门市为例 [PDF]
, 2019 在城市气候问题持续恶化与精细化城市管理背景下,对城市通风系统构建方法的辨析与思考将为复杂条件下的城市通风廊道建设提供重要前提。本文基于地理信息汇总与气候分析开展补偿空间与可利用风资源识别,通过卫星遥感数据与气象观测数据耦合进行作用空间识别,运用Rhino、Grasshopper工具与GIS技术,采用最小成本路径分析法获取潜在的城市通风路径,综合考虑系统风、海陆风、逆温的影响,进行通风条件评估与廊道边界界定,进而推导城市通风廊道的形态,获取通风廊道各片段差异化、具体化的设计导则。实证表明 ...
余波 +4 more
core
Avalanche susceptibility evaluation of the Kezhayi to Gongnaisi section of the Duku expressway [PDF]
The Kezhayi to Gongnaisi section of the Duku expressway is predominantly characterized by alpine landforms, with steep terrain cutting that provides conducive conditions for avalanche development.
Bin WANG +4 more
core +1 more source
, 2014 本研究利用相似理論搭配地表能量平衡式於台灣中部地區觀測地表粗糙度，計有兩個都會區及三個農地混合住建築物區。在每一個實驗中以繫留探空氣球及地面氣象站觀測長短波輻射、土壤熱通量、及風速、溫度和濕度的垂直剖面。在台中都會區，地表粗糙度為2.1公尺，zero-plane displacement height為35 m；在草屯鎮市區地表粗糙度為1.2 公尺，zero-plane displacement height為11 m；在農地及建物混合區地表粗糙度為0.2-0.5公尺，而在水稻田區為地表粗糙度為0 ...
Tsai, Jeng-Lin, 蔡徵霖
core +2 more sources
Research on sediment reduction benefits of engineering measures on waste rock slope under different rainfall intensities [PDF]
The dump slope of open-pit coal mines is characterized by steep gradients, loose structure, and poor stability, leading to severe soil erosion under heavy rainfall.
Gang LYU +3 more
core +1 more source
Numerical simulation on dense gas dispersion and fire characteristics after liquefied natural gas release [PDF]
, 2012 This PhD dissertation mainly studies the prediction, simulation and mitigation methods of the two main hazards in LNG (Liquefied Natural Gas) industry, LNG vapor dense gas dispersion and LNG fire radiation, respectively.
Sun, Biao
core
Study on risk management and emergency strategy of acute poisoning due to liquid chlorine leakage based on accident simulation [PDF]
, 2023 HUANG Deyin, LI Minyan
core +1 more source
, 2019 不同空间分辨率的DEM 会对地理可照时数模拟结果产生显著影响。为了分析DEM 尺度效应对我国不同区域地理可照时数的影响，选取小兴安岭、太行山区、秦岭、青藏高原弧形山区、横断山区和东南丘陵6 个实验区，基于3 种空间分辨率的DEM 和地理可照时数分布式模型，利用GIS 的多层面复合分析功能，模拟了典型月份不同空间尺度的地理可照时数，定量分析了典型地形因子与模拟结果的关系，并探讨了DEM 尺度效应的影响。研究结果表明：（1） 我国地理可照时数差异明显，1 月、7 月及其差异主要受剖面曲率、海拔、纬度 ...
GONGWei(龚围) +4 more
core +1 more source
Discussion on the Applicability of Nozaki Mixing Layer Height Estimation Method in Taiwan
, 2021 指導教授林清和混合層高度為空氣污染物於大氣環境中能垂直擴散的高度，是空氣品質模式中會使用到的重要參數。透過解析臺灣四個不同地表使用型態地區之地表參數與實場觀測混合層高度特性，本論文發現地表粗糙度越大之地區，平均混合層發展會越高。以 Nozaki法、可感熱通量累加法與Holzworth法等三種混合層高度推估結果與實際觀測混合層高度比較，發現 Nozaki於兩個地區表現最好， Holzworth法與可感熱通量法各在一地區表現為最佳。本文依照各地區實場所觀測高度對 Nozaki法提出熱力紊流修正及機械紊流修正
汪家亨
core