GB/T 28923.2-2012Mapping requirements for the natural disasters remote sensing thematic maps - Part 2: Monitoring thematic maps (English PDF)

2.1 water area remote sensing thematic map products

2.1.1 The basic elements of information

Water area remote sensing thematic mapping products include water distribution element information can also be superimposed on the appropriate administrative boundaries, transport

Line, residential distribution information.

Elements Indicators 2.1.2 Monitoring and measurement units

Elements Indicators water area remote sensing thematic map products and units of measurement as shown in Table 1.

Table 1 water area remote sensing element index thematic map products and units of measurement

Elements Indicators Unit

M2 or km2 water area

2.1.3 Basic data layers and the indicator

Basic data layers water area of remote sensing thematic mapping products as shown in Table 2.

Table 2 Area Monitoring Water monitoring thematic map data layers and metrics basic product requirements

The indicator data layers

Water distribution data of remote sensing images based on the distribution of vector data extracted water bodies, including the distribution of pre-disaster and post-disaster situations water

Remote sensing data covering the affected areas of the optical and microwave remote sensing data, the spatial resolution of not less than 250m

The administrative boundary data provincial, city, county, township-level administrative boundaries vector data, the scale of not less than 1.100000

Transit Transit data vector data, the scale of not less than 1.100000

Residential settlements distribution data distribution vector data, the scale of not less than 1.100000

2.2 remote monitoring snow cover map products

2.2.1 Basic elements of information

Remote sensing snow cover map products include snow distribution and other elements of information may be superimposed on the appropriate administrative boundaries, transport […]