SeaWiFS Calibration and Algorithm Validation

This is the fourth annual report on NASA grant NAGW 3543, titled 'Sea-viewing Wide Field of view Sensor (SeaWiFS) calibration and algorithm validation'. An extended field experiment was conducted at Lake Tahoe in late July 1996 that involved: experimental verification of radiative transfer computations for various viewing geometries; retrieval of an effective aerosol optical depth height; calibration of a large field of view (FOV) sensor; and an evaluation of spatial non-uniformities in surface reflectance. The investigation and development of novel methods for the calibration of field radiometers at a variety of signal levels has been continued during the past year

Phylogeny of sea cucumber (echinodermata: holothuroidea) as inferred from 16s mitochondrial rRNa gene sequences

This study aimed to determine phylogenetic relationship between and among selected species of sea cucumbers (Echinodermata: Holothuroidea) using 16S mitochondrial ribosomal RNA (rRNA) gene. Phylogenetic analyses of 37 partial sequences of 16S mitochondrial rRNA gene using three main methods namely neighbour joining (NJ), maximum parsimony (MP) and maximum likelihood (ML) showed the presence of five main genera of sea cucumbers: Molpadia from order Molpadiida and four genera of order Aspidochirotida namely Holothuria, Stichopus, Bohadschia and Actinopyga. All of the 17 species obtained from Malaysia distributed among the main genera except within Actinopyga. Interestingly, Holothuria excellens was out of Holothuria group causing Holothuria to be paraphyletic. High bootstrap value and consistent clustering made Molpadia, Stichopus, Bohadschia and Actinopyga monophyletic. The relationship of Actinopyga with the other genera was unclarified and Stichopus was sister to Molpadia. The latter finding caused the resolution at order level unclear. The pairwise genetic distance calculated using Kimura 2-parameter model further supported and verified findings from the phylogenetic trees. Further studies with more samples and different mitochondrial DNA genes need to be done to get a better view and verification on the molecular phylogeny of sea cucumber

Phylogeny of sea cucumber (echinodermata: holothuroidea) as inferred from 16s mitochondrial rRNa gene sequences

This study aimed to determine phylogenetic relationship between and among selected species of sea cucumbers (Echinodermata: Holothuroidea) using 16S mitochondrial ribosomal RNA (rRNA) gene. Phylogenetic analyses of 37 partial sequences of 16S mitochondrial rRNA gene using three main methods namely neighbour joining (NJ), maximum parsimony (MP) and maximum likelihood (ML) showed the presence of five main genera of sea cucumbers: Molpadia from order Molpadiida and four genera of order Aspidochirotida namely Holothuria, Stichopus, Bohadschia and Actinopyga. All of the 17 species obtained from Malaysia distributed among the main genera except within Actinopyga. Interestingly, Holothuria excellens was out of Holothuria group causing Holothuria to be paraphyletic. High bootstrap value and consistent clustering made Molpadia, Stichopus, Bohadschia and Actinopyga monophyletic. The relationship of Actinopyga with the other genera was unclarified and Stichopus was sister to Molpadia. The latter finding caused the resolution at order level unclear. The pairwise genetic distance calculated using Kimura 2-parameter model further supported and verified findings from the phylogenetic trees. Further studies with more samples and different mitochondrial DNA genes need to be done to get a better view and verification on the molecular phylogeny of sea cucumber

Sherlock Holmes Meets Rube Goldberg: Fixing the Entry-into-Force Provisions of the Comprehensive Nuclear Test Ban Treaty

The Comprehensive Nuclear Test Ban Treaty (CTBT) is widely heralded as the most important international legal instrument for arresting the nuclear arms race and impeding further nuclear proliferation. Concluded in 1996, the treaty has been signed by 183 countries and ratified by 166. But it has not yet entered into force, because of its unique requirement that it not become operational for any state until it has been ratified by all forty-four countries designated in its Annex 2. Thirty-six of those Annex 2 states have ratified, but there is little prospect that all of the other eight (including the United States, China, India, Pakistan, and North Korea) will do so in the foreseeable future. In the meantime, certain parts of the CTBT are being provisionally applied, but other critical aspects are in abeyance, and the world\u27s unrequited demand for a fully effective legal prohibition on nuclear weapons testing has jeopardized the global nuclear security architecture. This Article proposes a novel work-around, to achieve early implementation of the CTBT. Interested states should negotiate a second treaty, styled as an Implementing Agreement, through which they could promptly effectuate the CTBT among themselves, even if some Annex 2 states remained outside the regime. This approach would free the CTBT from the tyranny of a veto power currently held by each of the Annex 2 states, and would allow the treaty to grow organically, building toward eventual universal acceptance by entering into force now for a sizeable coalition of the willing—as other important treaties have traditionally done. The legal mechanism for creating such an Implementing Agreement is unusual and cumbersome, but it follows an important international law precedent. The 1982 Law of the Sea Convention achieved widespread acceptance, but it, too, required substantial modification before its entry into force. There, the participating states successfully fashioned a 1994 Implementing Agreement to revise important elements. That document provides a useful template for the CTBT to emulate. This Article offers a draft of a CTBT Implementing Agreement, explaining how its waiver provisions would operate and how it would provide interested states a variety of alternative mechanisms for establishing a prompt, durable, and legally binding test ban regime

MONALISA 2.0 and the sea traffic management - a concept creating the need for new maritime information standards and software solutions

Postprint (published version

Rudolf Carnap

A brief introduction to the life and key work of Rudolf Carnap with special attention to his work on inductive logic

Copernicus high-resolution layers for land cover classification in Italy

The high-resolution layers (HRLs) are land cover maps produced for the entire Italian territory (approximately 30 million hectares) in 2012 by the European Environment Agency, aimed at monitoring soil imperviousness and natural cover, such as forest, grassland, wetland, and water surface, with a high spatial resolution of 20 m. This study presents the methodologies developed for the production, verification, and enhancement of the HRLs in Italy. The innovative approach is mainly based on (a) the use of available reference data for the enhancement process, (b) the reduction of the manual work of operators by using a semi-automatic approach, and (c) the overall increase in the cost-efficiency in relation to the production and updating of land cover maps. The results show the reliability of these methodologies in assessing and enhancing the quality of the HRLs. Finally, an integration of the individual layers, represented by the HRLs, was performed in order to produce a National High-Resolution Land Cover ma