MODIS derived K490 datasets
Maintenance and Update Frequency: notPlanned Statement: The K490 datasets are derived products of MODIS (Aqua) images. SeaDAS (version 6.1) was used to process the MODIS data from raw to L3 products. SeaDAS provides several algorithms for K490 products. The algorithm used here is the standard algori...
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ftands:oai:ands.org.au::683936 2023-12-03T10:30:42+01:00 MODIS derived K490 datasets Commonwealth of Australia (Geoscience Australia) (distributor) Commonwealth of Australia (Geoscience Australia) (pointOfContact) Commonwealth of Australia (Geoscience Australia) (owner) EGD (hasAssociationWith) Geoscience Australia (publisher) Huang, Z. (author) Manager Client Services (custodian) U56061 (custodian) Spatial: westlimit=100; southlimit=-60.0; eastlimit=170; northlimit=-5.0 https://researchdata.edu.au/modis-derived-k490-datasets/683936 https://pid.geoscience.gov.au/dataset/ga/77007 unknown Australian Ocean Data Network https://researchdata.edu.au/modis-derived-k490-datasets/683936 e3dd1af5-7b02-50fd-e044-00144fdd4fa6 https://pid.geoscience.gov.au/dataset/ga/77007 EGD Commonwealth of Australia (Geoscience Australia) oceans Marine Data remote sensing NERP Marine Biodiversity Hub marine NERP Marine Geoscience EARTH SCIENCES GEOLOGY Published_External dataset ftands 2023-11-06T23:31:25Z Maintenance and Update Frequency: notPlanned Statement: The K490 datasets are derived products of MODIS (Aqua) images. SeaDAS (version 6.1) was used to process the MODIS data from raw to L3 products. SeaDAS provides several algorithms for K490 products. The algorithm used here is the standard algorithm (OBPG) (Werdell, 2005). The sequences of processing included: 1. raw - L1A, 2. L1A - L1B, 3. L1B - L2, 4. L2 - L3 (spatial) binning, and 5. L3 binning to L3 time-binning. The first four steps were applied to all individual (daily) raw images. After completing the above steps for one-month-worth images (around 300 images), in the fifth step, four weekly images were generated: 1. week1: from the 1st to the 7th of the month; 2. week2: from the 8th to the 14th of the month; 3. week3: from the 15th to the 21st of the month; 4. week4: from the 22nd to the last day of the month. The four weekly images were exported as HDF files, then imported into ArcGIS and converted into ArcInfo grids. Next, the four grids were mosaiced into a monthly image using the averaging method. The above processes were repeated to generate the final 36 monthly datasets between 2009 and 2011. Werdell, P.J., 2005. OceanColor K490 algorithm evaluation. http://oceancolor.gsfc.nasa.gov/REPROCESSING/SeaWiFS/R5.1/k490_update.html (accessed 10/10/2011). The datasets measure the K490 parameter (Downwelling diffuse attenuation coefficient at 490 nm, a turbidity parameter) of Australian oceans. They are derived products from MODIS (aqua) images using NASA's SeaDAS image processing software. The extent of the datasets covers the entire Australian EEZ and surrounding waters (including the southern ocean). The spatial resolution of the datasets is 0.01 dd. The datasets contain 36 monthly k490 layers between 2009 and 2011. The unit of the datasets is 1/m. Dataset Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Southern Ocean |
institution |
Open Polar |
collection |
Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
oceans Marine Data remote sensing NERP Marine Biodiversity Hub marine NERP Marine Geoscience EARTH SCIENCES GEOLOGY Published_External |
spellingShingle |
oceans Marine Data remote sensing NERP Marine Biodiversity Hub marine NERP Marine Geoscience EARTH SCIENCES GEOLOGY Published_External MODIS derived K490 datasets |
topic_facet |
oceans Marine Data remote sensing NERP Marine Biodiversity Hub marine NERP Marine Geoscience EARTH SCIENCES GEOLOGY Published_External |
description |
Maintenance and Update Frequency: notPlanned Statement: The K490 datasets are derived products of MODIS (Aqua) images. SeaDAS (version 6.1) was used to process the MODIS data from raw to L3 products. SeaDAS provides several algorithms for K490 products. The algorithm used here is the standard algorithm (OBPG) (Werdell, 2005). The sequences of processing included: 1. raw - L1A, 2. L1A - L1B, 3. L1B - L2, 4. L2 - L3 (spatial) binning, and 5. L3 binning to L3 time-binning. The first four steps were applied to all individual (daily) raw images. After completing the above steps for one-month-worth images (around 300 images), in the fifth step, four weekly images were generated: 1. week1: from the 1st to the 7th of the month; 2. week2: from the 8th to the 14th of the month; 3. week3: from the 15th to the 21st of the month; 4. week4: from the 22nd to the last day of the month. The four weekly images were exported as HDF files, then imported into ArcGIS and converted into ArcInfo grids. Next, the four grids were mosaiced into a monthly image using the averaging method. The above processes were repeated to generate the final 36 monthly datasets between 2009 and 2011. Werdell, P.J., 2005. OceanColor K490 algorithm evaluation. http://oceancolor.gsfc.nasa.gov/REPROCESSING/SeaWiFS/R5.1/k490_update.html (accessed 10/10/2011). The datasets measure the K490 parameter (Downwelling diffuse attenuation coefficient at 490 nm, a turbidity parameter) of Australian oceans. They are derived products from MODIS (aqua) images using NASA's SeaDAS image processing software. The extent of the datasets covers the entire Australian EEZ and surrounding waters (including the southern ocean). The spatial resolution of the datasets is 0.01 dd. The datasets contain 36 monthly k490 layers between 2009 and 2011. The unit of the datasets is 1/m. |
author2 |
Commonwealth of Australia (Geoscience Australia) (distributor) Commonwealth of Australia (Geoscience Australia) (pointOfContact) Commonwealth of Australia (Geoscience Australia) (owner) EGD (hasAssociationWith) Geoscience Australia (publisher) Huang, Z. (author) Manager Client Services (custodian) U56061 (custodian) |
format |
Dataset |
title |
MODIS derived K490 datasets |
title_short |
MODIS derived K490 datasets |
title_full |
MODIS derived K490 datasets |
title_fullStr |
MODIS derived K490 datasets |
title_full_unstemmed |
MODIS derived K490 datasets |
title_sort |
modis derived k490 datasets |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.edu.au/modis-derived-k490-datasets/683936 https://pid.geoscience.gov.au/dataset/ga/77007 |
op_coverage |
Spatial: westlimit=100; southlimit=-60.0; eastlimit=170; northlimit=-5.0 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
EGD Commonwealth of Australia (Geoscience Australia) |
op_relation |
https://researchdata.edu.au/modis-derived-k490-datasets/683936 e3dd1af5-7b02-50fd-e044-00144fdd4fa6 https://pid.geoscience.gov.au/dataset/ga/77007 |
_version_ |
1784256694198468608 |