HRSL Puerto Rico Population

Raster Dataset

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Tags
population, demography, Puerto Rico


Summary

Provide detailed population estimates for research in humanitarian, disaster response, sustainability, and infrastructure planning fields.

Description

            

The High Resolution Settlement Layer (HRSL) provides estimates of human population distribution at a resolution of 1 arc-second (approximately 30m) for the year 2015. The population estimates are based on recent census data and high-resolution (0.5m) satellite imagery from DigitalGlobe. The population grids provide detailed delineation of settlements in both urban and rural areas. The data were developed using computer vision techniques to classify blocks of optical satellite data as settled (containing buildings) or not. Proportional allocation was used to distribute population data from subnational census data to the settlement extents. The data are distributed as GeoTIFF files. The Population GeoTIFF represents population estimates (in persons).

Credits

Connectivity Lab at Facebook. Center for International Earth Science Information Network - CIESIN - Columbia University. Source imagery provided by DigitalGlobe. Census data collected as part of the Gridded Population of the World project.

Use limitations

            

This work is licensed under the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0). Users are free to use, copy, distribute, transmit, and adapt the work for commercial and non-commercial purposes, without restriction, as long as clear attribution of the source is provided.

Extent

West  -67.958665    East  -64.687554
North  18.517255    South  17.670033

Scale Range
Maximum (zoomed in)  1:5,000
Minimum (zoomed out)  1:150,000,000

ArcGIS Metadata 

Topics and Keywords 

Themes or categories of the resource  society


*Content type  Downloadable Data


Place keywords  Algeria

Theme keywords  population, demography

Citation 

Title HRSL Puerto Rico Population
Creation date 2016-11-01 00:00:00
Publication date 2016-11-15 00:00:00


Edition 1.0
Edition date 2016-11-08


Presentation formats  digital image


Collection title High Resolution Settlement Layer (HRSL)


Other citation details
Recommended citation: Facebook Connectivity Lab and Center for International Earth Science Information Network - CIESIN - Columbia University. 2016. High Resolution Settlement Layer (HRSL). Source Imagery © 2016 DigitalGlobe, Inc. Accessed [DAY MONTH YEAR]



Resource Details 

Dataset languages  English (UNITED STATES)
Dataset character set  utf8 - 8 bit UCS Transfer Format


Spatial representation type  grid


*Processing environment  Version 6.2 (Build 9200) ; Esri ArcGIS 10.5.0.6491


Credits
Connectivity Lab at Facebook. Center for International Earth Science Information Network - CIESIN - Columbia University. Source imagery provided by DigitalGlobe. Census data collected as part of the Gridded Population of the World project.

Extents 

Extent
Geographic extent
Bounding rectangle
West longitude -5.517502
East longitude 2.404998
South latitude 9.40252
North latitude 15.080853
Extent contains the resource Yes

Extent
Geographic extent
Bounding rectangle
West longitude -3.505342
East longitude 1.39438
South latitude 4.738734
North latitude 11.169567
Extent contains the resource Yes

Extent
Geographic extent
Bounding rectangle
West longitude 79.453139
East longitude 81.885639
South latitude 5.918476
North latitude 9.835976
Extent contains the resource Yes

Extent
Geographic extent
Bounding rectangle
West longitude 14.400218
East longitude 32.903551
South latitude -34.837471
North latitude -22.129693
Extent contains the resource Yes

Extent
Geographic extent
Bounding rectangle
Extent type  Extent used for searching
*West longitude -67.958665
*East longitude -64.687554
*North latitude 18.517255
*South latitude 17.670033
Extent contains the resource No

Extent in the item's coordinate system
*West longitude -67.958665
*East longitude -64.687554
*South latitude 17.670033
*North latitude 18.517255
*Extent contains the resource Yes

Resource Points of Contact 

Point of contact
Individual's name CIESIN User Services
Organization's name Center for International Earth Science Information Network - CIESIN - Columbia University
Contact's role  point of contact


Contact information
Phone
Voice +1 (845)365-8988
Fax +1 (845)365-8922

Address
Delivery point PO Box 1000
City Palisades
Administrative area NY
Postal code 10964
Country US
e-mail addressciesin.info@ciesin.columbia.edu

Hours of service
9-5 Monday-Friday



Resource Maintenance 

Resource maintenance
Update frequency  irregular


Resource Constraints 

Legal constraints
Limitations of use
CIESIN strives to disseminate quality Data and to provide accurate metadata and documentation consistent with best practices and accepted standards. This includes appropriate version control and archiving so that users understand changes to Data and can obtain previous versions for comparison purposes. Nevertheless, CIESIN, Columbia University, and their sponsors offer Data on a where is, as is basis and do not offer an express or implied warranty regarding quality, applicability, or accuracy.

Legal constraints
Limitations of use
This work is licensed under the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0). Users are free to use, copy, distribute, transmit, and adapt the work for commercial and non-commercial purposes, without restriction, as long as clear attribution of the source is provided.

Constraints
Limitations of use
                  

This work is licensed under the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0). Users are free to use, copy, distribute, transmit, and adapt the work for commercial and non-commercial purposes, without restriction, as long as clear attribution of the source is provided.


Spatial Reference 

ArcGIS coordinate system
*Type Geographic
*Geographic coordinate reference GCS_WGS_1984
*Coordinate reference details
Geographic coordinate system
Well-known identifier 4326
X origin -400
Y origin -400
XY scale 11258999068426.238
Z origin -100000
Z scale 10000
M origin -100000
M scale 10000
XY tolerance 8.983152841195215e-009
Z tolerance 0.001
M tolerance 0.001
High precision true
Left longitude -180
Latest well-known identifier 4326
Well-known text GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433],AUTHORITY["EPSG",4326]]

Reference system identifier
Value 4326
*Codespace EPSG
*Version 6.14(3.0.1)


Spatial Data Properties 

Georectified Grid
*Number of dimensions 2


Axis dimensions properties
Dimension type  row (y-axis)
*Dimension size 3050
*Resolution  0.000278 deg (degree)

Axis dimensions properties
Dimension type  column (x-axis)
*Dimension size 11776
*Resolution  0.000278 deg (degree)

*Cell geometry  area
*Point in pixel  center


*Transformation parameters are available Yes


*Check points are available No


Corner points
*Point -67.958665 17.670033
GML Properties
Unique identifier ID0EOGAC
*Point -67.958665 18.517255
GML Properties
Unique identifier ID0EAHAC
*Point -64.687554 18.517255
GML Properties
Unique identifier ID0EUGAC
*Point -64.687554 17.670033
GML Properties
Unique identifier ID0E1GAC

*Center point -66.323110 18.093644
GML Properties
Unique identifier ID0EGHAC



ArcGIS Raster Properties
General Information
*Pixel depth 64
*Compression type LZW
*Number of bands 1
*Raster format TIFF
*Source type continuous
*Pixel type double precision
*No data value -1.797693e+308
*Has colormap No
*Has pyramids Yes




Spatial Data Content 

Image Description
*Type of information  image
Attribute described by cell values Band_1: Persons (count)


Band information
*Description Band_1
Sequence identifier
Name 1
Type modeled


*Maximum value 788.759187
*Minimum value 0.000000
Units
Symbol [arb'U]
Codespacehttp://aurora.regenstrief.org/UCUM

GML Properties
Unique identifier ID0AAABCCABA
Identifier Unified Code of Units of Measure
Codespace GML_UomSymbol

*Number of bits per value 64


Imaging condition  cloud
Percent cloud cover 0.2


Triangulation has been performed No
Radiometric calibration is available No
Camera calibration is available No
Film distortion information is available No
Lens distortion information is available No


Data Quality 

Scope of quality information
Resource level  dataset




Data quality report - Completeness omission
Measure name Landmass covered
Measure description
Proportion of the country included in the analysis



Quantitative test results
Value 1.0
Units
Symbol [arb'U]
Codespacehttp://aurora.regenstrief.org/UCUM

GML Properties
Unique identifier ID0ABACABAEA
Identifier Unified Code of Units of Measure
Codespace GML_UomSymbol

Value type Completeness
Error statistic Proportion


Evaluation type  direct internal




Data quality report - Thematic classification correctness
Measure name Recall
Measure description
Recall of computer vision classification used to identify settlements in the imagery. Recall or sensitivity, is the fraction of relevant instances that are retrieved. Recall = TP / (TP + FN) where TP = true positive, FP = false positive, FN = false negative



Quantitative test results
Value 0.945
Units
Symbol [arb'U]
Codespacehttp://aurora.regenstrief.org/UCUM

GML Properties
Unique identifier ID0ABACABBEA
Identifier Unified Code of Units of Measure
Codespace GML_UomSymbol

Value type Classifier performance metric
Error statistic Fraction


Evaluation type  direct internal




Data quality report - Thematic classification correctness
Measure name Precision
Measure description
Precision of computer vision classification used to identify settlements in the imagery. Precision, or positive predictive value, is the fraction of retrieved instances that are relevant in the classification. Precision = TP / (TP + FP) where TP = true positive, FP = false positive, FN = false negative



Quantitative test results
Value 0.915
Units
Symbol [arb'U]
Codespacehttp://aurora.regenstrief.org/UCUM

GML Properties
Unique identifier ID0ABACABCEA
Identifier Unified Code of Units of Measure
Codespace GML_UomSymbol

Value type Classifier performance metric
Error statistic Fraction


Evaluation type  direct internal




Data quality report - Thematic classification correctness
Measure name Accuracy
Measure description
Accuracy of computer vision classification used to identify settlements in the imagery. Accuracy = TP + TN / (TP + TN + FP + FN) where TP = true positive, TN = true negative, FP = false positive, FN = false negative



Quantitative test results
Value 0.935
Units
Symbol [arb'U]

Value type Classifier performance metric
Error statistic Fraction


Evaluation type  direct internal




Lineage 

Source data


Source data
Description
Gridded Population of the World, version 4 (GPWv4) input census data. http://sedac.ciesin.columbia.edu/gpw





Distribution 

Distribution format
Version 6.0
Specification GeoTIFF
File decompression technique LZW
*Name Raster Dataset


Metadata Details 

Metadata language English (UNITED STATES)
Metadata character set  utf8 - 8 bit UCS Transfer Format


Scope of the data described by the metadata  dataset
Scope name* dataset


*Last update 2017-11-06


ArcGIS metadata properties
Metadata format ArcGIS 1.0
Metadata style ISO 19139 Metadata Implementation Specification
Standard or profile used to edit metadata ISO19139


Created in ArcGIS for the item 2017-11-06 02:42:21
Last modified in ArcGIS for the item 2017-11-06 03:13:38


Automatic updates
Have been performed Yes
Last update 2017-11-06 03:13:38


Metadata Contacts 

Metadata contact
Individual's name CIESIN User Services
Organization's name Center for International Earth Science Information Network - CIESIN - Columbia University
Contact's role  point of contact


Contact information
Phone
Voice +1 (845)365-8988
Fax +1 (845)365-8922

Address
Delivery point PO Box 1000
City Palisades
Administrative area NY
Postal code 10964
Country US
e-mail addressciesin.info@ciesin.columbia.edu

Hours of service
9-5 Monday-Friday



Metadata Maintenance 

Maintenance
Update frequency  as needed


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