Explore - Quick tour of SC2000
The SC2K Window
There are 3 main zones in the SC2K window:
Manipulating any of the buttons on the toolbar, or varying the 'active'
fields will change what you see in the map window.
The horizontal tool bar across the top of the window.
information about the tools, visit the Help site. Special capabilities and functions of the tools will be described below.
The vertical array of fields or categories on the left side of the window.
The Map Window.
The map window will initially display a 'geographic' projection of the
world. Select the type of station data you wish to search or browse from
the list of fields to the left of the map window. It is not necessary,
but strongly recommended that you restrict your exploring to one major
field at a time. This will expedite your search and of course your results
will be field specific.
How you select and browse the samples in the device specific fields will
depend on your search criteria. If your needs involve a specific region
of the world ocean, you can use these Zoom and Pan tools to navigate to
the area you require.
CORES: This data subset includes all the sediment cores in the Woods
Hole collection. You may select and sort them by a specific device type
as your search session proceeds.
DREDGES & GRABS: This suite includes samples collected by many
different types of dredges and grab samplers. These are principally hard
rock samples, and samples of coarse seabed lithologies, but may also include
stations that contain some fine grained sediments.
SUBMERSIBLES: All samples in the collection recovered by Alvin and
DREDGE ANALYSIS: In addition to station data about dredges and grabs
this field contains digitized descriptive summaries of the major lithologies
contained within the dredges and grabs. Most of the descriptive information
will appear in abbreviated alpha-numeric code on the listing produced.
However, where hypertexted [blue] these codes can be readily translated
by clicking for pop-up screens of expanded information. Click on the icon for the SC2000
[Remember to click on the tool bar icon you're using first. This tool
will stay "attached" or active on your mouse pointer until you click the
icon again, or select another tool.] The Zoom-in tool works in 2 ways:
a quick 2X zoom takes place if you click on a spot on the map, or you can
click and drag a box [any corner first] around the stations that are of
interest to you. To help you keep you bearings when zooming and panning
, note that the arrow of you mouse pointer is constantly annotating Longitude
and Latitude in the lower left corner of the big window adjacent to the
rotating earth icon. Longitude is listed first [- means West] and then
Latitude [- means South]. This function works at all levels of zoom.
Once you have selected a field or category of samples you may search
and identify the samples in that portion of the database in a variety of
The simplest way to see more information about a plotted symbol [note the
types of symbols linked to each field or category of samples in the list
on the left side of the main window.] which indicates the location of a
sample is to select the IDENTIFY tool:
Click this item on the tool bar then click the symbol on the
map that you'd like more information about. The sample will be highlighted
on the map, and a new screen will follow showing a list of detailed station
parameters. This list and all detailed lists produced by other search tools
are printable for your records. The format of the list will be different
for each category of samples. Any coded or abbreviated data in the fields
can be translated by referring to the corresponding help file invoked by
and then the definition table hypertext. If you are browsing cores in
the collection, you may view or print the lithologic log and smear slide
analysis if the IMAGE field at the bottom of the list reads YES.
The core description images are in Adobe PDF format and clicking
the hypertext will automatically invoke the Acrobat reader necessary for
viewing the file if the reader is installed on your computer. You can download
a free version of the Adobe Acrobat
reader or return to the lab home page and locate the Adobe Icon.
If you would like to view details of samples in a region defined by a circle
around a particular spot on the globe go to the tool bar and select the
Return to the map and click on the desired spot or symbol. A box
will pop up requesting that you enter the radius you require in Nautical
Miles. [Note: If you enter a very large radius, the generation of the sample
details list may take a little while. Please be patient.] The samples that
fall in your specified circle will be highlighted on the map and the detailed
list will follow on a new page. Clicking on any data shown in hypertext
[blue] on the list will produce further information. If you click on the
Cruise number, a plot of all the samples taken on that particular leg of
an expedition will be displayed. Click the PHY [Physiographic Province]
digit to see a list for code translation. If you're searching the Dredge
Analysis category where sample descriptions are summarized [6 columns of
data], clicking the Alpha or Numeric code will produce a translation aid
that will also identify the column heading code.
The SELECT tool:
produces exactly the same lists and formats as the circle tool but
operates in a different manner. Once you have clicked the select tool icon
on the toolbar, you can inscribe a square or rectangular box on the map
that contains the samples you wish to identify. To make the box, click
once on the map to select a corner then drag the mouse to shape your box
and click again.
The most capable of all the search tools is the QUERY BUILDER:
With this tool you can search by specific "fields" within a category
and then by "values" in that field that you either select from the list
or specify. For instance you can create a simple query to find all gravity
cores in the entire collection. However if you were interested in gravity
cores that were taken in water depths greater than 3500 meters, you can
simply add this qualifying parameter to your initial formula and create
a slightly more complex 'recipe'. The current version of query builder
that we have online has a little bug in it that we hope will be fixed [by
ESRI] very soon. It's a syntax problem and we know how everyone loves computer
sensitivity to SYNTAX! The problem occurs only if you're trying to build
a complex query by 'double-clicking' values in the lists presented. If
you follow the simple rules below building a proper query should be easy.
One final suggestion: when changing fields on the Map, take one step at
a time for best results. For instance, if you want to change from cores
to dredge analysis, turn off the core plots by clicking the box, let the
map refresh, then turn on the dredge data. This will keep the mapserver
happy and help insure a better exploration experience for you. Your comments
and suggestions are welcome.
Click on the hammer to pop up the Query a Layer window.
Select a sample type. This will produce a list of fields which you can
use to create your query.
If you have a simple query like "all cores taken from the Atlantis II"
you can compose this by choosing cores as your sample type then
double clicking SHIP, double clicking = , click Get Values,
double click AII from the Values list below then click OK. The results
window will pop up [again this may not be instantaneous] and the samples
that meet your criteria will be highlighted on the map. As before you can
get more elaborate information by clicking on hypertexted values on the
'results' list. Note that the proper SYNTAX for the query formula is:
([FIELD] LOGICAL CONDITION VALUE)
where field and value appear exactly as they do in the
lists above the query formula window.
([Ship] = "AII")
([Device] = "GGC")
The presence and spacing of the round and square brackets is critical
for proper formula building.
If you need to compose a more complex query formula, you'll have to type
into the box manually. The bug mentioned above creates a slight format
glitch if you try to double click entire complex formulas. Composing a
compound query is not difficult. Just follow the examples below:
SAMPLE TYPE - CORES
([Depth] > 3000) and ([Psed] = "CO")
This would select all cores with a Primary sediment type of Calc Ooze in
water depths greater than 3000 meters.
([Device] = "PC") and ([Physio] = 10)
This formula would find all samples taken with a piston corer located in
Abyssal plains around the globe. Note that the values for physiographic
province and all other coded fields can be found in the SC2000
code/definition tables which can be reached by clicking: