GB/T 28923.4-2012Mapping requirements for the natural disaster remote sensing thematic maps - Part 4: Loss assessment thematic maps (English PDF)

2.1 assess the scope of the disaster remote sensing thematic map products

2.1.1 The basic elements of information

Disaster range of remote sensing to assess thematic map products include a range of disaster information elements can also be superimposed on the appropriate administrative boundaries, transport

Line, the distribution of settlements, land use classification and other information.

2.1.2 Assessment Elements and units of measurement

According to the severity of damage within a certain range is divided into the scope of the disaster severely damaged area, moderate damage zone, mildly affected and unaffected area

Area. Elements Indicators and Disaster Unit range of remote sensing to assess thematic map products as shown in Table 1.

Table 1 Scope of remote sensing disaster assessment index thematic map products and units of measurement elements

Elements Indicators Unit

Severely damaged area m2 or km2

Moderately impaired m2 or km2 area

Mildly affected area m2 or km2

Unaffected area m2 or km2

2.1.3 Basic data layers and the indicator

The basic range of remote sensing data layers hazard assessment map products as shown in Table 2.

Table 2 hazard assessment of the scope of remote sensing thematic map data layers and metrics basic product requirements

The indicator data layers

Scope of the disaster affected area vector data based on remote sensing image data obtained by disasters

Remote sensing data covering the affected areas of the optical and microwave remote sensing data, the spatial resolution of not less than 300m

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 […]