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  • Community composition  (10)
  • Geodesy
  • Instituto Oceanográfico de la Armada, Guayaquil, Ecuador  (11)
  • Springer  (1)
  • 2005-2009  (12)
  • 1950-1954
  • 2008  (12)
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  • 2005-2009  (12)
  • 1950-1954
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  • 1
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    Unbekannt
    Estudio de la comunidad fitoplanctónica en el estuario interior de Esmeraldas, Ecuador durante mayo de 2002 (2008)
    Instituto Oceanográfico de la Armada, Guayaquil, Ecuador
    Details
    Publikationsdatum: 2021-05-19
    Beschreibung: El presente trabajo tiene por finalidad determinar la composición, abundancia y distribution de las especies que se encuentran en los ríos de la ciudad de Esmeraldas.
    Beschreibung: The present investigation comprehended, three kinds of method: Chlorophyll a, cell count, cualitative analysis. That to contributed with ecology information about of phytoplankton community. These information were carry out in five area that included 31 stations in the internal stuary of the Esmeraldas city during on may of 2002. In the water example was identify 51 species and 87 species was observed in net 50 u. In the community of phytoplankton. The diatoms was dominant and the low concentration the dinoflagellates, cianobacters, clorophyta, euglenophyta and tintinnoids. In count cells was observed the dominant of Mesodinium rubrum and Thalassiosira subtilis in all area. However in examples of net (50u) was registered species typical of estuary environmental Chaetoceros affinis, Skeletonema costatum, Bacteriastrum elongatum, Pseudo-nitzschia paradoxa and reported the high abundance and diversity. These species presented a broad distribution and were dominan tipical of area.
    Beschreibung: Incluye ref.bibl., grafs., tbls.
    Beschreibung: Published
    Schlagwort(e): Phytoplankton ; Estuaries ; Distribution ; Chlorophylls ; Diatoms ; Species diversity ; Chlorophylls ; Phytoplankton ; Abundance ; Diatoms ; Species diversity ; Cell counters ; Estuaries ; Community composition ; Distribution
    Repository-Name: AquaDocs
    Materialart: Journal Contribution
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    Determinación del datum vertical en La Libertad, Ecuador (2008)
    Instituto Oceanográfico de la Armada, Guayaquil, Ecuador
    Details
    Publikationsdatum: 2021-05-19
    Beschreibung: Normalmente en los levantamientos geodésicos se utilizan dos tipos de referencias: las coordenadas de origen y el datum vertical: Las primeras están en función del elipsoide o superficie matemática de referencia que más se ajusta al área, y el segundo; por la determinación del nivel medio del mar con 19 años de observación. El Ecuador tiene como elipsoide de referencia, el Internacional y el datum horizontal del punto localizado en la Canoa, Venezuela (Provisional South American Datum 1956, PSAD 56), cuya coordenadas han sido transportadas a nuestro país mediante redes geodésicas. En 1948, el Ecuador instaló una estación mareográfica en la Libertad (Lat. 020° 12'S., Long. 80° 55'W) y a la determinación del datum vertical se refiere el presente trabajo.
    Beschreibung: Incl. ref.bibl., grafs.
    Beschreibung: Published
    Schlagwort(e): Geodesy ; Datum levels ; Geodesy
    Repository-Name: AquaDocs
    Materialart: Journal Contribution
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    Distribución cuali-cuantitativa del fitoplancton en el Pacífico sureste (3°16'-31°23'S), durante El Niño 1997-1998 (2008)
    Instituto Oceanográfico de la Armada, Guayaquil, Ecuador
    Details
    Publikationsdatum: 2021-05-19
    Beschreibung: El objetivo del presente artículo es estudiar la distribución de las concentraciones de clorofila "a" y feopigmentos en diciembre/97 y marzo/98, y cuales serían los indicadores biológicos del fitoplancton que han avanzado con la corriente cálida hacia el sur en diciembre/97, en condiciones de El Niño 97-98, en el Pacífico sudeste exceptuando la región peruana (Fig.1).
    Beschreibung: During the VII Ecuadorian Expedition to Antarctic in the Guayaquil - Valparaíso - Guayaquil route (december/97 - march/98), oceanographic stations were performing to register cuali-cuantitative variations of phytoplankton of Southeastern Pacific Ocean during "El Nino" 1997-98 conditions. The biomass of phytoplankton is measured chlorophylls "a" levels showed lower concentrations between 0.015-04 mg/m³ to the 100m depth. The phytoplankton composition in december/97, registered the most dominance of diatoms at southward Gulf of Guayaquil with lower concentration at 20° S, the main species were Chaetoceros affinis, Skeletonema costatum, Rhizosolenia imbricata, Ch, leavis, R. alata var curvirrostris, Climacodium biconcavum, R. styliformis. The dinoflagellates species had the widest distribution in the area studied (3°16'-31°23'S) with rank of temperature between 27.54°C and 17.67°C, were Ceratium incisum, C. carriense, C. breve, C. teres, C. falcatiforme, C. euuarcuatum, C. pavillardi, Dinophysis caudata, Ornithocercus steinii, O. Thumi, O. magnificus, Pyrocystis fusiformis, Protoperidinium quarnerense, P. cf conicum, P. longipes, P. ocanicum, P. pedunculatum, Prorocentrum micans, Podolampas bipes, and some Epiplocides reticulata, Eutintinnus lusussundae, was indicators of oceanic waters advanced to chilean area. At to 30° S, the dinoflagellates were most dominant groups, with C. tripos, C. furca, C. pentagonum var subrrostrum, Goniodoma polyedricum, G. polygramma, species.
    Beschreibung: Incluye ref.bibl., grafs., ilus.
    Beschreibung: Published
    Schlagwort(e): Distribution ; Phytoplankton ; Biomass ; Diatoms ; Chlorophylls ; Distribution ; Phytoplankton ; Biomass ; Community composition ; Diatoms ; El Nino phenomena ; Oceanographic stations ; Chlorophylls
    Repository-Name: AquaDocs
    Materialart: Journal Contribution , Non-Refereed , Article
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
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    Composición, distribución y abundancia relativa de copépodos pelágicos calanoideos y no calanoideos en aguas ecuatorianas durante el evento La Niña en septiembre de 2001 (2008)
    Instituto Oceanográfico de la Armada, Guayaquil, Ecuador
    Details
    Publikationsdatum: 2021-05-19
    Beschreibung: El presente trabajo es una contribución para el conocimiento de la oceanografía biológica de la región ecuatorial tropical donde se manifiestan estas importantes perturbaciones climáticas.
    Beschreibung: The present study is based on the plankton samples collected in the cruise carried out by the Oceanographic Institute of the Equatorian Navy during september 2001. For this study 10 zooplankton samples was analyzed and corresponding to five coastal stations, located approximately in a transect between 81 W and from 1° N to 3°S. 8,208 organisms belonging to 23 families, 43 genus and 97 copepods species were identified. For each station was obtained the percentages of males and females, and the total average for the five stations too. Of the total of identified species 72.51% corresponded to females specimens and 27.49% to males specimens. The distribution of the copépodos species was associated to the conditions oceanographic that were presented during september of 2001. The copepods species of the south of the coast of the Ecuador, they were conformed mainly by species of cold waters, associated to a strong influence of the Humboldt Current that would have contributed to the displacement of characteristic species of cold waters, from the costs of Chile and Perú toward the costs of Ecuador. While in waters of intermediate temperatures, they were species conformed mainly by a transition fauna between cold waters of the south and the warm of the north. On relationship to the station more to the north, the copepods were conformed mainly by species of warm waters. This way, new expectations about the study of biological indicators in the oceanography one could wait, with the analysis and study of the climatic variability and their effect in the populations of the plankton in the ocean.
    Beschreibung: Incluye ref.bibl., grafs., tbls.
    Beschreibung: Published
    Schlagwort(e): Plankton ; Zooplankton ; Geographical distribution ; Marine ecology ; Indicator species ; Community composition ; Marine crustaceans ; Abundance ; Plankton ; Zooplankton ; Marine ecology ; Indicator species ; El Nino phenomena ; Geographical distribution
    Repository-Name: AquaDocs
    Materialart: Journal Contribution , Non-Refereed , Article
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
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    Plancton alrededor de las Islas Galápagos durante el crucero oceanográfico efectuado en mayo de 2004 (2008)
    Instituto Oceanográfico de la Armada, Guayaquil, Ecuador
    Details
    Publikationsdatum: 2021-05-19
    Beschreibung: El presente trabajo comprende la composición y distribución del plancton en las Islas Galápagos. Para el efecto se establecieron 13 estaciones ubicadas en las secciones 92° - 90° y 89° W, realizadas en mayo del 2004.
    Beschreibung: The paper has reference of the composition and distribution of the species the phytoplankton and zooplankton around of Galapagos Islands. It was established 13 stations located in the sections folowing 92°-90° y 89° west, carry out during in may of 2004. It was identificated 58 species phytoplankton in water example and 70 species in net (50u). The diatoms were dominants and low concentration was registered the Dynoflagellates, Cocolitophorides, Silicoflagellates, Cianobacters, Tintinnoids. The cellular biomass were represented main the species Mesodinium rubrum y Gynodinium sp. that were the high abundance, coincidental with the species obtained of net example was registered Rhizosolenia hebetata and Thalassiosira subtilis that characteristic the most productivity in the sections 90° West and 1° sur. The zooplankton were registered 17 taxa of zooplankton representated the groups dominants the Copepods (35%), Chaetognaths (34%), and Zoeas of Brachiuras (11%) and it were frecuent around the Galapagos Islands. The species of chaetognathas was registered the dominance Sagitta enflata asociated S. pacifica with the hight density of individuals localizated in the section 90°W and 1° north in the surface. Aditionally it was registered the species Sagitta hexaptera determinance the hight abundance in the subsurface in the section 89°W between the 1° to 3° southeastern of the Galapagos Islands.
    Beschreibung: Incluye ref.bibl., grafs., ilus.
    Beschreibung: Published
    Schlagwort(e): Biomass ; Plankton ; Distribution ; Phytoplankton ; Zooplankton ; Diatoms ; Plankton ; Community composition ; Distribution ; Phytoplankton ; Zooplankton ; Diatoms ; Biomass ; Cruises
    Repository-Name: AquaDocs
    Materialart: Journal Contribution
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
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    Aspectos bioecológicos del ictioplancton en la estación fija "La Libertad" durante 1997 (2008)
    Instituto Oceanográfico de la Armada, Guayaquil, Ecuador
    Details
    Publikationsdatum: 2021-05-19
    Beschreibung: El presente trabajo se refiere a las variaciones observadas en el ictioplancton presente en la estación fija "La Libertad" desde febrero de 1997 hasta diciembre del mismo año. Los datos se relacionan con las observaciones ecológicas hechas en base a indicadores de masas de agua, formaníferos planctónicos, presentes en las mismas muestras.
    Beschreibung: The present paper deals with the bioecology study of the ichthyoplankton at the fixed sampling site "La Libertad" located 10 miles offshore of Salinas-Peninsula de Santa Elena, Ecuador. Plankton samples analysed were collected every 20 days, from february to december 1997, onboard of boats belonging to the National Army. During 1997 the following dominant families of fish larvae were found: Scaenidae (18%), Engraulidae (9%), Bregmacerotidae (6%) and others beloging to the suborden Pleuroronectoidei (8%). The Clupeidae family decreased from 17% (until 19969) to 2% during the "El Niño" event 1997. The highest concentration of fish larvae was found during june, july and august, between 490 and 700 org.m², fish eggs were found in february, 23000 org.m² and june, august and octuber. The following species larvae of commercial value were found in the present study: Cetengraulis mysticetus (chuhueco), Scomberjaponicus (macarela) and Sardinops sagax (sardina del sur). In relation to the past years, important changes in the composition of species of ichthyoplankton and zooplankton were found specially into planktonic foraminifera. The dominant species in the planktonic foraminifera group were: Globigerinoides sacculifer, G. ruber, Globoquadrina dutertrei, Globigerinella aequilateralis which are related to warm, oceanic and poor nutrient waters, properties observed in surface water from february to december 1997 with light mix of cool water as is indicated by the increase of Globigeina bulloides during july, august, september and november 1997. In general, according to biological markers, the "El Niño" 1997 event conditions has shown rising effects in the zooplanktonic fauna up to december, effects associated to morphologic changes in the population of foraminifera and the presence of larvae of tropical and oceanic fishes.
    Beschreibung: Incluye ref.bibl., grafs.
    Beschreibung: Published
    Schlagwort(e): Fish larvae ; Species diversity ; Ichthyoplankton ; Fixed stations ; Fish larvae ; Fish eggs ; Foraminifera ; Community composition ; Species diversity
    Repository-Name: AquaDocs
    Materialart: Journal Contribution
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
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    Cambios de la densidad de los cladóceros P. avirrostris y E. tergentina durante las épocas cálidas y frías (Dic. 2004 y nov. 2005) en la Bahía de Santa Elena (La Libertad - Ecuador) (2008)
    Instituto Oceanográfico de la Armada, Guayaquil, Ecuador
    Details
    Publikationsdatum: 2021-05-19
    Beschreibung: El objetivo del presente estudio es determinar los cambios poblacionales durante las estaciones cálida y fría de este grupo taxonómico y del zooplancton acompañante más abundante en aguas de la Bahía de Santa Elena vs. las variables ambientales temperatura y salinidad.
    Beschreibung: The present work is based on the cuali-quantitative zooplankton analysis and frequency of present groups regarding 240 plankton samples collected twice a month in 6 stations in coastal superficial waters during the winter and summer in front of Santa Elena's Bay (La Libertad) between december 2004- november 2005. It were determined 19 zooplankton groups, being the dominant ones: cladocera Penilia avirrostris and Evadne tergentina, copepod, eggs and larvae of fish and brachyura zoeas. Two cladocera species were determined: species Penilia avirrostris and Evadne tergentina; their distribution in dry season is notorious with a numerous population of P. avirrostris, when the temperature of the sea reports ranges from 20 to 22°C.
    Beschreibung: Incluye ref.bibl., grafs., tbls.
    Beschreibung: Published
    Schlagwort(e): Zooplankton ; Coastal waters ; Zooplankton ; Seasonal variations ; Coastal waters ; Community composition ; Population number
    Repository-Name: AquaDocs
    Materialart: Journal Contribution
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
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    Composición y variación estacional del fitoplancton, zooplancton y microbentos en el estuario interior del Golfo de Guayaquil, durante el año 2003 (2008)
    Instituto Oceanográfico de la Armada, Guayaquil, Ecuador
    Details
    Publikationsdatum: 2021-05-19
    Beschreibung: El presente trabajo comprende el estudio de la distribution cualitativa y cuantitativa del fitoplancton en el Golfo de Guayaquil, durante dos épocas: Húmeda y seca. El propósito del presente trabajo con respecto al zooplankton está orientado a conocer los cambios en la composición, abundancia y diversidad del zooplancton y en particular el Phyllum Chaetognatha con el objetivo de relacionar la distribución de las especies de Quetognatos con los parámetros físicos. En lo relacionado al estudio del microbentos, se pretende estudiar la composición específica y la abundancia relativa de las especies de la microflora béntica y de la microfauna bentónica y su relación con factores ambientales.
    Beschreibung: The present work comprehends the study of the qualitative and quantitative distribution of the phytoplankton in the Gulf of Guayaquil, during two season: Winter and summer. There were identified 63 species in water samples and 79 species in samples with net of 50u in the community of the phytoplankton. The diatoms prevailed dominant and in smaller concentration the dinoflagellates, cianobacters flagellates and tintinnoids. The cell biomass was represented by Paralia sulcata and Skeletonema costatum, they were the most abundant species in all the area. In net samples of 50u the dominant species were: Polymyxus coronalis, Thalassiotrix frawenfeldii, Pseudonitzschia longissima y species benthics: Coscinodiscus perforatus y Cyclotella menenghiniana. The most biomass of zooplankton was registered at the 17 ava bright and the less productivity of zooplankton was registered at Daule River however it was observed a coexist a good diversity of zooplankton groups during season. Stablishment that the species of chaetognatha has a distributions variability in the space and temporal, during september was observed the hight diversity and destacated the most individual numbers density of S. peruviana, S. bodoti and S. neglecta at the Canal of Cascajal and Posorja areas. It was observed a broad distribution main of the species S. bedoti and S. neglecta in the Guayas river ecosystem where it was registered sporadic at 23 stations located near of Mondragon Island until the Canal of Cascajal. It was reported to first registered the species S. bedoti and S. neglecta at the stations denominated second of Perimetral bright and it is distribution continued until the Portete and 17 ava brights localized at interior ramal of Estero Salado during wet season. In the related to the study of the microbenthics, it is sought to study the composition of species and the relative abundance of the species of the benthics microflora and of the benthics microfauna and their relationship with environmental factors.
    Beschreibung: Incluye ref.bibl., grafs.
    Beschreibung: Published
    Schlagwort(e): Phytoplankton ; Biomass ; Zooplankton ; Benthos ; Geographical distribution ; Estuaries ; Diatoms ; Microorganisms ; Community composition ; Seasonal variations ; Phytoplankton ; Diatoms ; Biomass ; Zooplankton ; Microorganisms ; Benthos ; Geographical distribution ; Estuaries
    Repository-Name: AquaDocs
    Materialart: Journal Contribution
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
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    Comunidades del plancton en la Caleta Aeolian de la Isla Baltra - Galápagos (Ecuador), durante 2005 (2008)
    Instituto Oceanográfico de la Armada, Guayaquil, Ecuador
    Details
    Publikationsdatum: 2021-05-19
    Beschreibung: El propósito del trabajo es determinar la composición, abundancia de los grupos dominantes del fitoplancton y zooplancton, establecer las especies de Quetognatos y su relación con la temperatura superficial del mar durante marzo de 2005 correspondiente a la época húmeda.
    Beschreibung: During the study one collected superficial water samples in 12 stations distributed in the Aeolian Bay of the Baltra, Galapagos Islands to determine the primary productivity and secundary on the chain it would feed, the samples of plankton were collected during days 9 to the 13 of march of 2005. In relation to the biomass cellular one identified 24 species in the superface waterproof cloak and 84 species were determined in the samples of network of 50u. In the phytoplankton community, the diatoms prevailed dominant and in smaller concentration the dinoflagelados groups, silicoflagellates, cocolithoforids. In counts cells the dominant species in the area in study were Gymnodinium sp., Filamentos sp., Coscinodiscus excentricus, Thalassiotrix frauenfeldii. In the netwoork samples (50u), the typical water species were registered with high productivity characteristics; Corethron criophyllum, Chaetoceros peruvianus. As far as the zooplanktony productivity a greater biomass collected with the network of 335u in comparison with the network of 600u was determined, and it stands out that the hight biomass of zooplankton was in station 4. Additionally a proportional relation inversely between the abundances of Eggs of fish and taxa of Quetognatos was observed. As far as the species of Quetognatos the presence in abundance order was observed Sagitta neglecta, S. bedoti, S. pacifica, these species are typically of wet season.
    Beschreibung: Incluye ref.bibl., grafs.
    Beschreibung: Published
    Schlagwort(e): Plankton ; Primary production ; Biological production ; Phytoplankton ; Zooplankton ; Biomass ; Plankton ; Primary production ; Biological production ; Phytoplankton ; Zooplankton ; Biomass ; Abundance ; Community composition ; Fish eggs ; Surface temperature
    Repository-Name: AquaDocs
    Materialart: Journal Contribution
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
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    Comunidades del zooplankton en los ríos Teaone, Esmeraldas, Terminal Petrolero y el balneario Las Palmas de Esmeraldas, durante el 2004 (2008)
    Instituto Oceanográfico de la Armada, Guayaquil, Ecuador
    Details
    Publikationsdatum: 2021-05-19
    Beschreibung: Los estudios del zooplancton en diferentes áreas principalmente en el río Teaone, Esmeraldas y la zona marino costera frente a la ciudad que incluye, el área del balneario Las Palmas, en el último año se ha intensificado con el objetivo de obtener un conocimiento detallado de la presencia de estos organismos y las características físico-químicas que condicionan su abundancia y distribución.
    Beschreibung: The present study was carried out during the wet and dry seasons in the rivers Teaone, Esmeraldas, Petrolero Terminal and Palmas, for which stablished that a variability exists temporary space as for the abundance and composition of the communities zooplankton, especially the species of the taxa Chaetognatha, Cladocera, Caridea. The area of major productivity zooplanctónica associated with a high diversity was in the zone of Petrolero Terminal of Esmeraldas during the wet season. In the area Petrolero Terminal there was high abundance of Quetognatos's species represented by the dominancia of S. bedoti and S. neglecta in the wet season and during the dry season the dominancia was od S. enflata and S. minim which con be related principally by the seasonal variation of the parameter salinity, whereas the temperature was kept in a range of 25.9° to 28.4 °C during 2 season in study. The low zooplankton abundance and diversity registered in the river Teaone, there being registered the presence of scanty specimens of Macrobranchium rathbunae in the wet season. In the river Teaone were observed high values of potential of hydrogen in comparison with other areas in study, for what, it might catalogue that this area is in conditions of a deterioration of the quality of the waters, by light indications towards a pollution product of the antropogénica activities.
    Beschreibung: Incluye ref.bibl., grafs.
    Beschreibung: Published
    Beschreibung: freshwater environment
    Schlagwort(e): Zooplankton ; Biological production ; Water quality ; Salinity ; Hydrogen ; Species diversity ; Community composition ; Zooplankton ; Biological production ; Salinity ; Hydrogen ; Water quality ; Temporal variations ; Species diversity
    Repository-Name: AquaDocs
    Materialart: Journal Contribution
    Standort Signatur Erwartet Verfügbarkeit
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  • 11
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    Macrofauna bentónica en la zona intermareal y submareal en Caleta Aeolian, Isla Baltra (Galápagos, Ecuador) (2008)
    Instituto Oceanográfico de la Armada, Guayaquil, Ecuador
    Details
    Publikationsdatum: 2021-05-19
    Beschreibung: Esta investigación tiene como propósito identificar y dar a conocer las especies de marco invertebrados bentónicos más comunes del área de la Caleta de Aeolian, Isla Baltra del Archipiélago de Galápagos, y conocer la actividad biológica de estos organismos marinos en la zona intermareal y submareal con la finalidad de determinar la composición, distribución y abundancia de cada uno de ellos y sus asociaciones existentes en la zona estudiada, como un marco referencial futuro que nos permita conocer los cambios para evaluar el impacto ambiental que puedan tener los hábitat de estos invertebrados marinos.
    Beschreibung: Of the analysis of 14 stations in the subtidal zone in Aeolian Creek, Galápagos Islands, 9 species of mollusks were identified, being the species most abundant Pitar helenae. The polichaetos were few frequent represented by the species Nereis sp. of the Nereidae family, Glycera sp. of the Glyceridae family, Nepthys sp. of the Nepthyidae family and Diopatra tridentata of the Onuphidae family. In the intertidal zone the results of the analysis of the 7 macrobentónicas samples 24 species in total of invertebrates and one species of macro-alga Padina durvillea were identified. In the rocky zone the bivalvia Brachiodontes adamsianus and Sipunculidos they are the specimens more abundant. The polichaetos appear with low diversity being Bocardia tricuspa the species more abundant, but of the same way the genus Dasybranchus sp. and Aphrodita parva. The most frequent crustaceans on the rocks is represented by Grapsus grapsus and few frequent Oxius verreauxii, Porcellana sp., Calcino sp. (Ermitaño) and in the sand Ocypode gaudichaudii. A table with values of relative frequency appears and figures with the percentage abundance of the identified species.
    Beschreibung: Incluye ref.bibl., ilus., tbls.
    Beschreibung: Published
    Schlagwort(e): Distribution ; Benthos ; Intertidal environment ; Microorganisms ; Microorganisms ; Abundance ; Marine organisms ; Community composition ; Distribution ; Marine invertebrates ; Benthos ; Intertidal environment
    Repository-Name: AquaDocs
    Materialart: Journal Contribution
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  • 12
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    VLNDEF Project for Geodetic Infrastructure Definition of Northern Victoria Land, Antarctica (2008)
    Springer
    Details
    Publikationsdatum: 2022-05-30
    Beschreibung: Scientific investigations in Antarctica are, for many different reasons, a challenging and fascinating task. Measurements, observations and field operations must be carefully planned well in advance and the capacity of successfully meeting the goals of a scientific project is often related to the capacity of forecasting and anticipating the many different potential mishaps. In order to do that, experience and logistic support are crucial. On the scientific side, the team must be aware of its tasks and be prepared to carry out observations in a hostile environment: both technology and human resources have to be suitably selected, prepared, tested and trained. On the logistic side, nations, institutions and any other organisation involved in the expeditions must ensure the proper amount of competence and practical support. The history of modern Italian Antarctic expeditions dates back to the middle 80’s when the first infrastructures of “Mario Zucchelli Station”, formerly Terra Nova Bay Station, were settled at Terra Nova Bay, Northern Victoria Land. Only a few years later, the first geodetic infrastructures were planned and built. Italian geodetic facilities and activities were, ever since, being constantly maintained and developed. Nowadays, the most remarkable geodetic infrastructures are the permanent Global Positioning System (GPS) station (TNB1) installed at Mario Zucchelli and the GPS geodetic network Victoria Land Network for DEFormation control (VLNDEF) entirely deployed on an area extending between 71° S and 76° S and 160° E and 170° E. These facilities do not only allow carrying out utmost geodetic investigations but also posses interesting capacities on the international multidisciplinary scientific scenario. In order to fully exploit their potentiality, management and maintenance of the infrastructure are crucial; nevertheless, in order to perform high quality scientific research, these abilities must be coupled with the knowledge concerning a proper use and a correct processing of the information that these infrastructures can provide. This work focuses on the different methods that can be applied to process the observations that are performed with GPS technique in Northern Victoria Land, aiming at reaching the highest accuracy of results and assuring the larger significance and versatility of the processing outcomes. Three software were used for the analysis, namely: Bernese v.5.0, Gipsy/Oasis II and Gamit/Globk. The working data sets are (i) the permanent GPS station TNB1 observations continuously performed since 1998 and (ii) the five episodic campaigns performed on the sites of VLNDEF. The two infrastructures can be regarded as neat examples of standard geodetic installation in Antarctica. Therefore, the technological solutions that were adopted and applied for establishing the GPS permanent station and the VLNDEF geodetic network as well as the data processing strategies and the data analysis procedures that were tested on their observation will be illustrated in detail. The results will be presented, compared and discussed. Furthermore, their potentials and role in geodetic research will be carefully described; their versatility will also be highlighted in the foreground of a multidisciplinary Antarctic international scientific activity.
    Beschreibung: Published
    Beschreibung: 37-72
    Beschreibung: 1.8. Osservazioni di geofisica ambientale
    Beschreibung: reserved
    Schlagwort(e): Antarctica ; Geodesy ; Geodetic Infrastructures ; GPS ; 01. Atmosphere::01.01. Atmosphere::01.01.08. Instruments and techniques
    Repository-Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Materialart: book chapter
    Standort Signatur Erwartet Verfügbarkeit
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