Abstract:
We studied the spatio-temporal variations of chlorophyll-a concentration and phytoplankton blooms in the continental shelf and shelf break of the Argentinean patagonic region by means of a time series of 11-years of MODIS/Aqua level 3 (L3) chlorophyll product. We aggregated data according to different granularities and estimated annual and monthly anomalies. We also studied the phenology of phytoplankton blooms determining bloom starting date and date of maximum concentration. Finally, we estimated and described statistical indexes such as minimum and maximum bloom areas, their occurrence date and bloom occurrence frequency. All the temporal processing of this raster dataset was done with the recently implemented temporal modules of GRASS GIS 7. This Free and Open Source Software provides the advantage of automating all (or most of) the processing, allowing the application of the same methodology to analyze satellite time series of different variables, like sea surface temperature. © 2015 IEEE.
Registro:
| Documento: |
Conferencia
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| Título: | Spatio-temporal variations in chlorophyll-a concentration in the patagonic continental shelf: An example of satellite time series processing with GRASS GIS temporal modules |
| Autor: | Andreo, V.; Dogliotti, A.I.; Tauro, C.; Neteler, M. |
| Filiación: | Comisión Nacional de Actividades Espaciales, Ruta Provincial C45 Km 8 Falda del Carmen, Córdoba, 5187, Argentina
Facultad de Matemática, Astronomía y Física, Universidad Nacional de Córdoba, Ciudad Universitaria, Córdoba, 5000, Argentina
Instituto de Astronomía y Física Del Espacio (CONICET-UBA), Pab. IAFE, Ciudad Universitaria, Buenos Aires, 1428, Argentina
GIS, Remote Sensing Unit, Department of Biodiversity and Molecular Ecology, CRI, Fondazione Edmund Mach, Via E. Mach 1, San Michele all'Adige, Trento, 38010, Italy
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| Palabras clave: | Argentina; Chlorophyll-a; GRASS GIS 7; MODIS; time series analysis |
| Año: | 2015
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| Volumen: | 2015-November
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| Página de inicio: | 2249
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| Página de fin: | 2252
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| DOI: |
http://dx.doi.org/10.1109/IGARSS.2015.7326254 |
| Título revista: | IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015
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| Título revista abreviado: | Dig Int Geosci Remote Sens Symp (IGARSS)
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| CODEN: | IGRSE
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| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_97814799_v2015-November_n_p2249_Andreo |
Referencias:
- Falkowski, P., Ocean science: The power of plankton (2012) Nature, 483, pp. S17-S20
- Gregg, W.W., Rousseaux, C.S., Decadal trends in global pelagic ocean chlorophyll: A new assessment integrating multiple satellites, in situ data, and models (2014) Journal of Geophysical Research: Oceans, 119, pp. 1-13
- Gebbert, S., Pebesma, E., A temporal GIS for field based environmental modeling (2014) Environmental Modelling & Software, 53, pp. 1-12
- (2015) Geographic Resources Analysis Support System (GRASS). Software, Version 7. 1, , http://grass.osgeo.org/, GRASS Development Team
- Neteler, M., Bowman, H., Landa, M., Metz, M., GRASS GIS: A multi-purpose open source GIS (2012) Environmental Modelling and Software, 31, pp. 124-130
- Rivas, A.L., Dogliotti, A.I., Gagliardini, D.A., Seasonal variability in satellite-measured surface chlorophyll in the patagonian shelf (2006) Continental Shelf Research, 26, pp. 703-720
- Romero, S.I., Piola, A.R., Charo, M., Garcia, C.A.E., Chlorophyll-a variability off patagonia based on Sea-WiFS data (2006) Journal of Geophysical Research, 111
- Machado, I., Barreiro, M., Calliari, D., Variability of chlorophyll-a in the southwestern atlantic from satellite images: Seasonal cycle and ENSO influences (2013) Continental Shelf Research, 53, pp. 102-109
- D'Ortenzio, F., Antoine, D., Martinez, E., Ribera D'Alcalà, M., Phenological changes of oceanic phytoplankton in the 1980s and 2000s as revealed by remotely sensed ocean-color observations: Oceanic phytoplankton phenology changes (2012) Global Biogeochemical Cycles, 26, p. GB4003
- Solari, L.C., Gabellone, N.A., Claps, M.C., Casco, M.A., Quaíni, K.P., Neschuk, N.C., Phytoplankton chlorophyte structure as related to ENSO events in a saline lowland river (Salado River, Buenos Aires, Argentina) (2014) Ecology and Evolution, 4, pp. 918-932
- Lewandowska, A.M., Boyce, D.G., Hofmann, M., Matthiessen, B., Sommer, U., Worm, B., Effects of sea surface warming on marine plankton (2014) Ecology Letters, 17, pp. 614-623A4 - The Institute of Electrical and Electronics Engineers Geoscience and Remote Sensing Society (IEEE GRSS)
Citas:
---------- APA ----------
Andreo, V., Dogliotti, A.I., Tauro, C. & Neteler, M.
(2015)
. Spatio-temporal variations in chlorophyll-a concentration in the patagonic continental shelf: An example of satellite time series processing with GRASS GIS temporal modules. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015, 2015-November, 2249-2252.
http://dx.doi.org/10.1109/IGARSS.2015.7326254---------- CHICAGO ----------
Andreo, V., Dogliotti, A.I., Tauro, C., Neteler, M.
"Spatio-temporal variations in chlorophyll-a concentration in the patagonic continental shelf: An example of satellite time series processing with GRASS GIS temporal modules"
. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015 2015-November
(2015) : 2249-2252.
http://dx.doi.org/10.1109/IGARSS.2015.7326254---------- MLA ----------
Andreo, V., Dogliotti, A.I., Tauro, C., Neteler, M.
"Spatio-temporal variations in chlorophyll-a concentration in the patagonic continental shelf: An example of satellite time series processing with GRASS GIS temporal modules"
. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015, vol. 2015-November, 2015, pp. 2249-2252.
http://dx.doi.org/10.1109/IGARSS.2015.7326254---------- VANCOUVER ----------
Andreo, V., Dogliotti, A.I., Tauro, C., Neteler, M. Spatio-temporal variations in chlorophyll-a concentration in the patagonic continental shelf: An example of satellite time series processing with GRASS GIS temporal modules. Dig Int Geosci Remote Sens Symp (IGARSS). 2015;2015-November:2249-2252.
http://dx.doi.org/10.1109/IGARSS.2015.7326254