Page 20 - Modern Spatiotemporal Geostatistics
P. 20

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        SPATIOTEMPORAL                MAPPING IN
         NATURAL        SCIENCES


                        "Science  is built  of facts,  as a  house is built  of stones;
                            but  an accumulation  of facts is no more  a  science
                                than  a heap of stones is a house." H.  Poincare



         Mapping      Fundamentals

        The  urge  to  map a natural  pattern, an evolutionary  process, a biological  land-
        scape,  a  set  of  objects,  a  series  of  events,  etc.,  is  basic  in  every  scientific
        domain.  Indeed, the  mapping concept is deeply rooted in the  human desire for
        spatiotemporal  understanding:  What  are the  specific distributions  of  proteins
        in  cells?  What  are the  locations  of  atoms  in  biological  molecules?  What  is
        the distribution  of  potentially  harmful contaminant  concentrations in the sub-
        surface?  What  are the  genetic  distances of  human  populations  throughout
        a  continent?  What  are  the  prevailing weather  patterns  over  a  region?  How
        large  is the  ozone  hole?  How  many light-years  do  galaxies cover?  Answers to
        all  these questions—extending  from  the  atomic  to  the cosmic—are  ultimately
        provided  by  means  of  good,  science-based  spatiotemporal  maps.
             Furthermore,  studies  in  the  cognitive  sciences  have shown that  maps are
        particularly  suitable  for  the  human faculty  of  perception,  both psychological
        and  neurological  (Anderson,  1985;  Gregory,  1990).  These faculties can  most
        efficiently  recognize characteristic elements of information  when it  is contained
        in a map that  helps  us build  visual  pictures of  the world.  Every scientific  disci-
        pline  depends fundamentally  on the faculty  of  perception  in  order to  interpret
        a  process, derive new insights,  conceptualize and  integrate  the unknown.
            What  exactly  is  a spatiotemporal  map?  The  answer  to  this  question de-
        pends  upon  one's  point  of  view,  which  is,  in  turn,  based  on  one's  scientific
        background  and  practical  needs.  From  a geographer's  point of  view,  a  map is
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