ESAS@SEAMAP Online Help - Public Pages
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Log in
At this moment (April 30, 2008), the ESAS dataset is not published. You need to log in to OBIS-SEAMAP to view unpublished datasets. If you don't have an account yet, please contact Ei Fujioka (efujioka@duke.edu).
- Go to http://seamap.env.duke.edu/prod/admin
- Enter your user name and password to the corresponding boxes.
- Click [Submit].
- You may see multiple dataset entries. Click "European Seabirds at Sea - JNCC All Trips (ID: 427)" to see the Dataset Detail page.
- To map the dataset, click either "Map Online" link to the left or the map image to the right.
Public and community pages
OBIS-SEAMAP provides the ESAS community specific pages, in addition the public pages. The public pages are exactly the same as for other SEAMAP datasets. The community pages are tailered to the community so they meet community-specific needs. To access the community page, please log in.
The Online Help is prepared for public and community pages. The help for the public pages follows. To see the help for the community pages, click "Community View" link below.
| Public View | Community View |
Datasets Page
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The main public view gets some improvements. Statistics will return in a decent time (less than 30 seconds in most cases) with effort statistics. Scroll down to the bottom to see the effort stat. Notes: The table header scrolls along with the data part. This will be improved soon. You can upload additional data into the ESAS workspace within the SEAMAP server and let the user donwload them. Species recorded has common names. The thubmnail is updated. |
Mapping Interface
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In the initial view, the ESAS data is presented with the numbers of observations by unit cell, which is either 0.1 or 0.01 degree grids depending on the zoom level of Google Maps (switch between them at the zoom level 8). All species are summed up. Cells are color-coded by the numbers of observations. |
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There are a bunch of features available with the Mapper. For example, click on a grid cell to see #observations grouped by taxa. Then click the number to see the species observed in that grid cell. The layer title to the left is expandable, showing the legend whose colors are changeable. |
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You can narrow the observations to a specific species. To do so, you can either
In the latter, move on to switch to [Symbology & Filter] tab and turn your species on. You can choose multiptle species (Method 1 can't do this). Then, close the popup. |
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As you may notice, when you specify species, you can choose to map individual observation points, rather than aggregated grid cells. The benefit of this is that you can identify each point to get the most detailed information. If you turned on multiple species, they are color-coded on the map. To get back to the grid cell version, just choose "Distribution by unit cell." |
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Effort data is turned off by default due to its huge size. You can filter the effort by year-month combinations in a similar manner as you choose the species in the popup window. Then, turn it on to see the effort lines. The lines can be "identified." With grid cells, effort lines may be hard to see, hidden beneath the cells. You can either
Mapping individual points makes it easier to see the effort lines. |
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[Data Summary] tab in the layer information popup is useful to see the changes of the observation count over time. You can choose time aggretation options among year, season and month. Notes 1: The calculation is dramatically sped up but still may take up to 30 seconds to finish. Notes 2: The table header scrolls along with the data part. This will be improved soon. Notes 3: Graphs are available as of March 11, 2008 |
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A big advantage to publish the data via OBIS-SEAMAP is that the Online Mapper provides you very powerful extraction tools. You can extract data based on your region of interest, datasets, species and time range. The resulting data are mapped and can be summarized by year/season or month. The extracted data are also downloadable as a CSV file and mapped with Google Earth (Notes: Google Earth interface is not yet implemented for the ESAS data). |
Google Earth Interface
Google Earth interface is not yet implemented.
To Do List
- Currently the effort lines are filtered by the year-month combination and the choices are listed in a flat table. Options to switch the table view between years only and year-month combination will be provided so that you can easily pick a year or two.
- The data summary table doesn't have a fixed header, so when you scroll down or right, it's hard to trace which species and time you are looking at. A fixed header will be implemented.
- The graphs in the data summary table will be available soon.
- Prepare KML version for Google Earh interface.
