Cici Alexander

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a r t i c l e i n f o Airborne Laser Scanning (ALS) data for generating Digital Terrain Models (DTM) at national level are often collected during leaf-off seasons. Leaf-off data are useful for classifying evergreen and deciduous trees since echoes at lower intensity are returned from deciduous trees when compared to evergreen trees. In addition to this, the(More)
The Open University's repository of research publications and other research outputs Secondary ion mass spectrometry and x-ray absorption near-edge structure spectroscopy of isotopically anomalous organic matter from CR1 chondrites GRO 95577 Conference Item (2007). Secondary ion mass spectrometry and x-ray absorption near-edge structure spectroscopy of(More)
Introduction: The study of primitive carbonaceous chon-drites is an important means of understanding the conditions of the early Solar System. We report new data on the Antarctic find RBT 04133, originally classified as a CR2 carbonaceous chon-drite [1]. However, we show that RBT 04133 is not a CR and has affinities to the CV and CO carbonaceous chondrite(More)
Introduction: It has long been recognized that both the soluble (SOM) and insoluble (IOM) organic matter in primitive chondrites and IDPs contain organic material with large D and 15 N enrichments [1]. In the SOM there are considerable isotopic variations amongst individual compounds within and between meteorites. Similarly, the IOM varies dramatically in(More)
Introduction: Primitive chondrites are mineralogi-cally, chemically and isotopically unequilibrated. Isotopic anomalies are common for bulk chondrites and components within them [1-5]. There are multiple causes for the isotopic anomalies. For example, extremely large isotopic anomalies that deviate by orders of magnitude from solar ratios are present in(More)
a r t i c l e i n f o Keywords: Airborne LASER SCANNING LiDAR Vertical canopy cover Angular canopy closure Ellenberg indicator values for light Canopy cover and canopy closure are two closely related measures of vegetation structure. They are used for estimating understory light conditions and their influence on a broad range of biological components in(More)