The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B4. Beijing 2008
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According to the above definitions, geospatial industry includes
all or part of GIS industry, remote sensing (RS) industry, GNSS
industry, surveying industry and mapping industry, etc. The
study decomposes the indicator of the geospatial industry size
by analyzing the development status of each industry branch,
and then uses different survey and research methods to each
indicator, or uses a variety of survey methods to a target
indicator. By comparison and certification, the study ultimately
obtains the value of the entire geospatial industry. The methods
used including questionnaire survey, on-the-spot investigation,
expert visit, internet data collection, comparison analysis, and
sampling study of GIS application system.
2.1 Indicator Decomposition and Modification for Industry
Size
Indicator decomposition for geospatial industry size refers to the
current status of the major industrial activities, as well as the
consideration of the data availability.
SBMS classifies the surveying management into ten aspects:
geodetic surveying, engineer surveying, cadastral surveying,
real estate surveying, administrative boundary surveying, aerial
photogrammetry, photogrammetry and remote sensing, GIS
project, map compilation and marine surveying. These ten
categories are also the business scope of companies and
institutes with qualification on surveying and mapping. Based
on the above, incorporating some related business, the study
decomposes the indicator of surveying industry size as
following: aerial photogrammetry (PSVa), photogrammetry and
remote sensing (PSVr), GIS project(PSVg), map
compilation(PSVm) , geodetic and survey(PSVs) which
including geodetic surveying, engineer surveying, cadastral
surveying, real estate surveying and administrative boundary
surveying. The formula is:
P sv =PSVa+PSVr+PSVg+PSVm+ PSVs
Psv -Surveying industry size; PSVa- aerial photogrammetry;
PSVr- photogrammetry and remote sensing; PSVg -GIS
project; PSVm- map compilation; PSVs -geodetic surveying,
engineer surveying, cadastral surveying, real estate surveying
and administrative boundary surveying.
GIS are automated systems used to capture, edit, store,
manipulate, analyze and display a variety of spatial data. By
analyzing the major components of GIS: hardware, software,
data and technical staff, decomposes the indicator of GIS
industry size into three parts: GIS software (PGs), GIS data
(PGd) and GIS hardware (PGh), namely:
P GIS = PGs+PGd+PGh
P GIS -GIS industry size; PGs-GIS software;
PGd-GIS data; PGh- GIS hardware;
Remote sensing refers to the observation and collection of data
without the sensor being in physical contact with the object
being studied, such as the study of the Earth from distant
vantage points, via satellite or aircraft. There are two kinds of
remote sensing, one is aerial remote sensing, and the other is
satellite remote sensing. Currently, the major industrial
activities of remote sensing industry include remote sensing
data acquisition, manipulation, application and service provision
of aerial image data and satellite image data. Remote sensing
software research and development is also involved. The
hardware of satellite launch and ground receiving is not
included in the study.
In current china, excepting the CBERS satellites data and
Beijing-1 Micro-satellite data, most of industrial application of
satellite image data, especially high resolution image data are
depend on other countries. Data acquisition by arial remote
sensing is inspected by SBMS. The image data applications and
value-add services are also the important content of the RS
industry. Besides, remote sensing software is important but its
industry development is on the first stage. Based on the above
analysis, remote sensing industry indicator is decomposed into
three: satellite image data receiving, agent service (PRs), aerial
photogrammetry (PRa) and remote sensing data process and
application service(PRd).
P RS = PRs + PRa +PRd
P RS -Remote sensing industry size; PRs -Satellite image data
receiving and agent service; PRa- aerial photogrammetry and
service; PRd- remote sensing data process and application
services
GNSS is a geospatial technology that enables a portable
hand-held device to provide a precise location almost anywhere
on the earth by processing signals with a constellation of
satellites. According to CAO Chong(2001), the application of
GNSS refers to many fields, including car monitor, car
navigation, consuming products, OEM products, voyage,
aviation, information services and surveying/GIS according to
the application field. Considered the intersection with other
industry branches,GNSS industry size indicator is divided into
surveying/GIS application indicator (PGNsg) and the other
application indicator (PGNg).
Pgnss = PGNg+PGNsg
Pgnss-GNSS industry size indicator; PGNsg- surveying/GIS
application indicator
PGNg -the other application excluding surveying/GIS;
There are professional and non-professional mapping
companies and institutes in China. Some professional
mapping companies and institutes belong to SBSM and others
not. The study decomposes the mapping industry size into the
following three indicators: 1) professional mapping companies
and institutes in surveying department (PCs); 2) other
professional mapping (PCns); 3) non-professional mapping
(PCo). The formula is:
P c =PCs+ PCns+ PCo
P c -mapping industry size ; PCs- professional mapping in
surveying department; PCns- other professional mapping; PCo-
non-professional mapping
The use of other technologies related to GIS applications, such
as CAD technology for geographic data editing and processing,
3-D imaging technique for geographic information display, IT
for achieving geographic information internet services,
including LBS and Internet map services. This part is recorded
as indicators P 0 .
The indicator decomposition of China’s geospatial industry size
is as shown in table 1. It should be pointed out that, with the
