Some standard content:
ICS07.060
National Standard of the People's Republic of China
GB/T39195—2020
Technical specifications for urban flooding risk investigation2020-10-11Release
State Administration for Market Regulation
National Standardization Administration
2021-05-01Implementation
Normative reference documents
Terms and definitions
Basic requirements
Data content
Data collection methods
Appendix A (Normative Appendix)
Appendix B (Informative Appendix)
Appendix C (Informative Appendix)
Appendix D (Informative Appendix)
Appendix E (Informative Appendix)
Appendix F (Informative Appendix)
Appendix G (Informative Appendix)
Appendix H (Informative Appendix) Appendix 1 (Informative Appendix) Appendix J (Informative Appendix) References Collection of urban geographic information Basic information of urban communities (streets) Basic information of urban ten land use Basic information of urban water bodies Basic information of urban roads Basic information of urban rainwater and sewage pipe networks Basic information of waterlogging risk points and areas affected by waterlogging Information on urban waterlogging disasters Basic information of urban observation stations Measures for preventing urban waterlogging GB/T39195—2020 This standard was drafted in accordance with the rules given in GB/T1.1-2009 This standard was proposed by the China Meteorological Administration. This standard is under the jurisdiction of the National Technical Committee for Standardization of Meteorological Disaster Prevention and Mitigation (SAC/TC345). Drafting units of this standard: Guangdong Climate Center, National Climate Center, Guangdong Institute of Standardization GB/T39195—2020
Main drafters of this standard: Li Chunmei, Tang Lisheng, Liu Weiqin, Liang Shumin, Gao Ge, Zheng Jing, Cai Jing, Yan Jiaqiong, Li Wenyuan, Hu Wei. m
1 Scope
Technical specification for urban waterlogging risk survey
This standard specifies the basic requirements, data content, and data collection methods for urban waterlogging risk survey. GB/T39195—2020
This standard is applicable to the waterlogging risk survey work in urban built-up areas, and can be used as a reference for urban waterlogging risk monitoring and early warning, risk prevention and control, etc.
Normative referenced documents
The following documents are indispensable for the application of this document. For all dated referenced documents, only the dated version applies to this document. For all undated referenced documents, the latest version (including all amendments) applies to this document. GB/T2260 Administrative division code of the People's Republic of China, terms and definitions
The following terms and definitions apply to this document. 3.1
Urban flooding
Heavy rainfall or continuous rainfall within a certain range exceeds the capacity of its rainwater facilities, resulting in water accumulation on the ground. [GB51222—2017, definition 2.1.1]
Risk investigation
Risk investigation
Collection and investigation of important information related to risk-causing factors and their dangerousness, disaster-bearing bodies and their exposure and vulnerability, and disaster prevention and mitigation capabilities.
[QX/T428—2018 definition 3.4]
Hidden danger point of urban flooding
Locations prone to water accumulation and possible losses or impacts. 4 Basic requirements
Data census
4.1.1 Emphasis should be placed on combining data information collection with field investigation. 4.1.2 A data review system should be established to ensure data reliability and reporting specifications. Data use should comply with data confidentiality requirements. 4.1.3
Data collection
Data should be detailed to drainage zones and urban communities (streets). SAG
The data content in Chapter 5 should be collected. If relevant data is collected, it is not necessary to fill in the form one by one, but the source should be indicated; if relevant data cannot be collected, the form should be filled in one by one after investigation according to Table A,1. 4.2.3 The magnitude and unit of the data, as well as the latitude and longitude information should be checked. 4.2.4 Preliminary quality control should be carried out based on the upper and lower limits of the collected data, and the logical relationship of the relevant fields should be checked. 4.2.5 Geographic information data should be provided in electronic documents in the format specified by the national resources administrative department. 4.3
Data reporting
The reporting of administrative division codes shall comply with the provisions of GB/T2260. The specific source of data and the time of collection shall be recorded. 4.3.2
The reported data shall be checked and compared with the original data. 4.3.3
Data update
Data should be updated once a year.
4.4.2 When there are changes in the urban meteorological and hydrological environment, social and economic development, increase or decrease in waterlogging risk points, etc., the latest data shall be collected or field surveyed in a timely manner to update the information.
4.4.3 If administrative divisions change, the specific changes should be recorded. 5 Data ContentwwW.bzxz.Net
5.1 Geographic Information
Basic geographic information within the entire city should be collected according to the requirements of Appendix A, including but not limited to: 5.1.1
1:250000 or above urban administrative division map; a)
b) 1:10000~1:50000 urban water system map; c) 1:10000~1:50000 urban topographic map or digital topographic map; d) 1:10000~1:50000 City + land use map; e) 1:10000 or above urban road geographic information (including road elevation) map; f) Geographical location of waterlogging risk points, including longitude and latitude and elevation 5.1.2 Other relevant geographic information of the entire city should be collected according to the requirements of Appendix A, including but not limited to: a) Urban community (street) surface cover type, population size, building distribution, engineering and social infrastructure; urban drainage network and drainage facility distribution data; b) Urban spatial resolution of not less than 4m rumor image data. Basic information of the city
Collect basic information of the city, including but not limited to: basic information of urban communities (streets), see Appendix B; a)
Urban land use, see Appendix C; b)
Basic information of urban water bodies, see Appendix D; basic information of urban roads, see Appendix E; basic information of urban rainwater and sewage pipe networks, see Appendix F; e)
Urban planning, including land use planning, road planning, zoning planning, water supply and drainage planning, etc. Basic information of waterlogging risk points and areas affected by waterlogging SAG
Collect information on waterlogging risk points and disaster-bearing bodies in areas affected by waterlogging, see Appendix G. Including but not limited to: a)
Basic information of waterlogging risk points;
b) Population and socioeconomic conditions involved in waterlogging risk points c) Basic information on disaster-bearing bodies involved in waterlogging risk points 5.4 Waterlogging disaster information
Collect urban waterlogging disaster information, see Appendix H. Including but not limited to: basic information and impacts of urban waterlogging processes; a
b) rainfall, inundation and losses at each waterlogging point during urban waterlogging processes. 5.5
Meteorological and hydrological data
Collect meteorological and hydrological data, including but not limited to: basic information of urban observation stations (including stations built by meteorological and hydrological departments), see Appendix I; a)
Hourly rainfall data of existing rain gauges in the city; hourly water level and flow data of urban rivers and upstream and downstream hydrological stations; existing urban waterlogging observation and video data. Waterlogging prevention measures
Collect information on waterlogging prevention measures, including but not limited to: a) Drainage facility scheduling procedures;
Urban waterlogging prevention measures, see Appendix J. b)
Data collection methods
Different methods are used to collect and obtain reliable information according to the situation, including but not limited to: historical document retrieval method;
field investigation method;
expert consultation method;
rumor and geographic information analysis method.
GB/T39195—2020
GB/T39195—2020
Appendix A
(Normative Appendix)
Collection of urban geographic information
The purpose and description of urban geographic information collection are shown in Table A.1. Table A.1
List of urban geographic information
Data name
Administrative division map
Water system map
Topographic map
Land use map
Urban road geographic information
Urban waterlogging disaster data
Remote sensing image
Urban status map
Urban road planning
Urban drainage network
Urban water supply and drainage planning
Drainage facility dispatching regulations
Urban population distribution map
Zoning plan
Underground engineering| |tt||Hidden engineering planning
UAV aerial photography
Digital elevation model
(DEM) image data
Use to query by region or as the base map of relevant information layers. Use to calculate water body statistics, drainage outlet location, water level, etc. Use to understand urban terrain, calculate surface runoff, groundwater flow direction, display relevant terrain conditions and estimate potential waterlogging points. Use to understand urban land use, urban zoning, surface generalization calculation of urban waterlogging model, etc.
Important parameter layers of urban waterlogging model
Use to obtain the distribution of potential waterlogging points in the city , calculate the critical rainfall for urban waterlogging and conduct risk assessment
Used to understand urban surface coverage
Used to understand urban planning conditions, and can be used as model drainage capacity calculation parameters when necessary
Urban waterlogging risk assessment of disaster-bearing bodies
Used to understand the location of urban drainage wells, pipeline layout, etc. Used to calculate and understand the maximum drainage capacity of the city Used to understand the status of urban waterlogging disaster prevention and mitigation measures and estimate disaster resistance
Urban waterlogging risk assessment of disaster-bearing bodies
Urban waterlogging risk assessment of disaster-bearing bodies
Urban waterlogging risk assessment Disaster-prone bodies
Urban waterlogging risk assessmentDisaster-prone bodies
Used to understand the surface conditions
Used to understand the surface conditions
Required, if no map, refer to Table B.1 for content reportingRequired, if no map, refer to Table D.1 for content reportingRequired
Required, if no map, refer to C.1 for content reportingRequired, if no map, urban drainage network data should be obtained, and urban road geographic information should refer to Table E.1 for content reportingRequired, refer to Appendix G and Appendix H for content reportingOptional
Required, if no map, refer to Table F.1 for content reportingRequired||t t||Optional. If there is no map, please refer to Table H.1 for details. Optional
Optional. DEM data and resolution better than 2.5m Appendix B
(Informative Appendix)
Basic Information of Urban Communities (Streets)
Basic Information of Urban Communities (Streets) can be reported according to Table B.1. Table B.1
Fields to be filled in
Community (Street) Name
Community (Street) Type
Community (Street) Code
Province Code
City (Region/State) Name
City (Region/ State) code
District (county) name
District (county) code
Community (street) population
Community (street) longitude
Community (street) latitude
Community (street) terrain
Community (street) average elevation
Community (street) surrounding roads
Community (street) surrounding roads
Basic profile
Data source
Filling person:
Filling unit:
Community 1
Community 2
Reviewer ：
Filling date:
Basic information of urban communities (streets)
Filling instructions
GB/T39195—2020
A Geographical type: communities divided by natural areas such as blocks, lanes, roads, rivers, and communities divided by the type of concentrated population; B Unit type: divided by building groups, relatively independent residential communities with large buildings as the main body;
C Unit type: communities with family settlements and dormitory areas of government agencies, enterprises and institutions as the main body;
D Comprehensive type: Huihua residential, tourism, business, culture, Communities with different functional characteristics such as sports;
E conversion type: originally rural communities, communities divided after "village to residential", the original village collective economic organization is still operating normally, and the community participating in community service management is reported in accordance with GB/T2260
Report in accordance with GB/T2260
Report in accordance with GB/T2260
Report in accordance with GB/T2260
Based on the geometric center point
Based on the geometric center point
Briefly describe the street terrain: A flat land; B slope; C concave land; D convex land, the unit is m. If a geographic information layer is collected, it is optional, but the source should be indicated. Fill in the names of the roads around the community (street), the unit is optional, and the unit is m. Fill in the length of each road around the community (street). You can choose to use words to briefly describe the geographical location, economic culture, history, hydrology, meteorology, waterlogging points, waterlogging risk points, disaster prevention and relief capabilities, major transportation facilities, etc. of each community (street) along the street.
Reviewer:
Year/Month/Date
Contact number
GB/T39195—2020
See Table C.1 for the utilization of urban land.
Fields to be filled in
Community (street) name
Community (street) code
Year of survey
Total area
(I) Urban green space
(II) Hardened ground
(III) Urban water network
(IV) Bare ground
+Soil type
+Soil texture
Data source
Unit"
Appendix C
(Informative appendix)
Urban land use
Record 1
Indicates the unit of the field, blank means no unit. Filler:
Filling unit:
Reviewer:
Filling date:
Urban land use
Record 2
Reviewer:
Filling instructions
Fill in according to GB/T2260
Ten-category classification method can be adopted: sand-10, loam-10, clay-10 and other ten soil particles are combined with their characteristics, which are divided into sand-10, loam-10 and clay-10
Contact number:5mAppendix B
(Informative Appendix)
Basic Information of Urban Communities (Streets)
Basic Information of Urban Communities (Streets) can be reported according to Table B.1. Table B.1
Fields to be filled in
Community (Street) Name
Community (Street) Type
Community (Street) Code
Province Code
City (Region/State) Name
City (Region/State) Code
District (County) Name
District (County) Code
Community District (street) population
Community (street) longitude
Community (street) latitude
Community (street) topography
Community (street) average elevation
Community (street) surrounding roads
Community (street) surrounding roads
Basic overview
Data source
Filling person:
Filling unit:
Community 1
Community 2
Reviewer:
Filling date:
Urban community ( Basic information of streets
Instructions for filling in the form
GB/T39195—2020
A Geographical type: communities divided by natural areas such as blocks, lanes, roads, rivers, and communities divided by the type of concentrated population; B Unit type: relatively independent residential communities divided by building communities, with large real estate as the main body;
C Unit type: communities with family settlements and dormitory areas of government agencies, enterprises and institutions as the main body;
D Comprehensive type: communities with different functional characteristics such as residence, tourism, business, culture, and sports ;
E Transformation type: Former rural communities, communities divided after "village to residential", the original village collective economic organizations are still operating normally, and the communities participating in community service management shall be reported in accordance with GB/T2260
Report in accordance with GB/T2260
Report in accordance with GB/T2260
Report in accordance with GB/T2260
Based on the geometric center point
Based on the geometric center point
Briefly describe the street terrain: A flat land; B slope; C concave land; D convex land, the unit is m. If a geographic information layer is collected, it is optional, but the source should be indicated. Fill in the names of the roads around the community (street), the unit is optional, and the unit is m. Fill in the length of each road around the community (street). You can choose to use words to briefly describe the geographical location, economic culture, history, hydrology, meteorology, waterlogging points, waterlogging risk points, disaster prevention and relief capabilities, major transportation facilities, etc. of each community (street) along the street.
Reviewer:
Year/Month/Date
Contact number
GB/T39195—2020
See Table C.1 for the utilization of urban land.
Fields to be filled in
Community (street) name
Community (street) code
Year of survey
Total area
(I) Urban green space
(II) Hardened ground
(III) Urban water network
(IV) Bare ground
+Soil type
+Soil texture
Data source
Unit"
Appendix C
(Informative appendix)
Urban land use
Record 1
Indicates the unit of the field, blank means no unit. Filler:
Filling unit:
Reviewer:
Filling date:
Urban land use
Record 2
Reviewer:
Filling instructions
Fill in according to GB/T2260
Ten-category classification method can be adopted: sand-10, loam-10, clay-10 and other ten soil particles are combined with their characteristics, which are divided into sand-10, loam-10 and clay-10
Contact number:5mAppendix B
(Informative Appendix)
Basic Information of Urban Communities (Streets)
Basic Information of Urban Communities (Streets) can be reported according to Table B.1. Table B.1
Fields to be filled in
Community (Street) Name
Community (Street) Type
Community (Street) Code
Province Code
City (Region/State) Name
City (Region/State) Code
District (County) Name
District (County) Code
Community District (street) population
Community (street) longitude
Community (street) latitude
Community (street) topography
Community (street) average elevation
Community (street) surrounding roads
Community (street) surrounding roads
Basic overview
Data source
Filling person:
Filling unit:
Community 1
Community 2
Reviewer:
Filling date:
Urban community ( Basic information of streets
Instructions for filling in the form
GB/T39195—2020
A Geographical type: communities divided by natural areas such as blocks, lanes, roads, rivers, and communities divided by the type of concentrated population; B Unit type: relatively independent residential communities divided by building communities, with large real estate as the main body;
C Unit type: communities with family settlements and dormitory areas of government agencies, enterprises and institutions as the main body;
D Comprehensive type: communities with different functional characteristics such as residence, tourism, business, culture, and sports ;
E Transformation type: Former rural communities, communities divided after "village to residential", the original village collective economic organizations are still operating normally, and the communities participating in community service management shall be reported in accordance with GB/T2260
Report in accordance with GB/T2260
Report in accordance with GB/T2260
Report in accordance with GB/T2260
Based on the geometric center point
Based on the geometric center point
Briefly describe the street terrain: A flat land; B slope; C concave land; D convex land, the unit is m. If a geographic information layer is collected, it is optional, but the source should be indicated. Fill in the names of the roads around the community (street), the unit is optional, and the unit is m. Fill in the length of each road around the community (street). You can choose to use words to briefly describe the geographical location, economic culture, history, hydrology, meteorology, waterlogging points, waterlogging risk points, disaster prevention and relief capabilities, major transportation facilities, etc. of each community (street) along the street.
Reviewer:
Year/Month/Date
Contact number
GB/T39195—2020
See Table C.1 for the utilization of urban land.
Fields to be filled in
Community (street) name
Community (street) code
Year of survey
Total area
(I) Urban green space
(II) Hardened ground
(III) Urban water network
(IV) Bare ground
+Soil type
+Soil texture
Data source
Unit"
Appendix C
(Informative appendix)
Urban land use
Record 1
Indicates the unit of the field, blank means no unit. Filler:
Filling unit:
Reviewer:
Filling date:
Urban land use
Record 2
Reviewer:
Filling instructions
Fill in according to GB/T2260
Ten-category classification method can be adopted: sand-10, loam-10, clay-10 and other ten soil particles are combined with their characteristics, which are divided into sand-10, loam-10 and clay-10
Contact number:
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