Fotointerpretación de usos del suelo, 1987

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Departamento de Recursos Naturales y Ambientales
Publication_Date: 2000
Title:
Fotointerpretación de usos del suelo, 1987
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage: http://gis.otg.pr.gov/download_gis_files.htm
Online_Linkage: http://www.drna.gobierno.pr/geodrna/web
Description:
Abstract:
A través de la interpretación de fotografías aéreas, del uso de información suplementaria y de viajes al campo para corroboración de datos. Se logra establecer una clasificación abarcadora del uso de terreno en el momento que se interpretan las fotos aéreas del 1987.
Purpose:
El propósito para la creación de este geodato corresponde a la gran presión que existe con respecto a las fuerzas demográficas, económicas y geográficas que se reúnen en PR y que ejercen grandes presiones sobre los recursos naturales que poseemos. De esta manera el gobierno y la empresa privada al igual que planificadores y ambientalistas, tienen a la mano una herramienta que les permite tener una visión abarcadora y rápida de cómo se está utilizando la tierra en PR.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1987
Ending_Time: 1989
Currentness_Reference:
ground condition
Status:
Progress: In work
Maintenance_and_Update_Frequency: Irregular
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -67.382213
East_Bounding_Coordinate: -65.219056
North_Bounding_Coordinate: 18.624722
South_Bounding_Coordinate: 17.869192
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: uso de suelos
Theme_Keyword: uso del terreno
Theme_Keyword: actividad económica
Theme_Keyword: DRNA
Access_Constraints: Acceso a público general. No tiene restricciones de publicación.
Use_Constraints:
A definirse
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: División de Geoinformática, DRNA
Contact_Person: Nitza Massini
Contact_Voice_Telephone: 787-999-2200
Native_Data_Set_Environment:
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Data_Quality_Information:
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Debido a la gran cantidad de procedimientos llevados a cabo para realizar la digitalización de los mapas es muy difícil calcular el error en términos de la exactitud del geodato. Por otro lado, se puede asegurar que el trabajo de fotointerpretación y digitalización realizado es de alta calidad,  contiene una gran cantidad de detalles y es data confiable.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Departamento de Recursos Naturales
Process_Step:
Process_Description:
Se creó mediante la fotointerpretación de fotos aéreas del año 1987. Estás fotos se utilizan en una escala de 1: 20,000 lo cual permite al fotointerpretador reconocer con bastante detalle el terreno y sus diferentes usos.  Con el fin de ubicar los diversos usos del terreno, se preparan mapas a una escala  de 1: 20,000. Se utilizan como mapa base los 67 cuadrángulos topográficos, incluyendo las islas de Mona, Vieques y Culebra, preparados por el Servicio Geológico de Estados Unidos (USGS, por sus siglas en inglés). Todos los mapas base se cuadriculan en celdas de un cuarto de kilómetro cuadrado, las cuales son identificadas por un par de coordenadas único, en donde se registra la información correspondiente en cada celda. El dibujo de la fotointerpretación es realizada en transparencias, utilizando como referencia el mapa base. De surgir alguna duda mientras el fotointerpretador dibuja el mapa, éste lo documenta y se hace el viaje de cotejo de campo para dilucidar cualquier interrogante.  Luego de corregido y finalizado el mapa de usos de terrenos, el mismo es llevado a ser digitalizado, por medio de un acuerdo cooperativo entre el DRNA y el USGS.  Descripción del proceso de digitalización:
        El mapa de usos de terreno final, dibujado en mylar es convertido a formato digital por digitalización del mylar utilizando el método de una digitalización a color completa (Contex  FSC 8000 dsp) a 400 dpi. La imagen que resulta de dicha digitalización es convertida a formato vectorial utilizando el programa R2V.
        Luego la data vectorial es exportada al programa ARCInfo para refinar las líneas de los polígonos y añadir atributos a dichos polígonos.  A la capa de información resultante (coverage), se le cambian las unidades de pulgadas a metros.
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 18.033333
Standard_Parallel: 18.433333
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: Usos_Suelos_1987
Attribute:
Attribute_Label: OBJECTID
Attribute_Definition:
Internal feature number.
Attribute_Definition_Source:
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Attribute_Definition:
Código numérico del uso de terreno
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Código de uso de terreno abreviado.
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Descripcion de los códigos de los usos de terreno
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Standard_Order_Process:
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Metadata_Reference_Information:
Metadata_Date: 20120611
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Descripcion de los códigos de los usos de terreno
Contact_Person: Astrid Rodríguez, Div. Geoinformática
Contact_Address:
Address_Type: mailing address
Address:
P. O. Box 366147
City: San Juan
State_or_Province: PR
Postal_Code: 00906-6600
Country: Puerto Rico
Contact_Voice_Telephone: 787.999.2200 x 5141
Contact_Electronic_Mail_Address: amrodriguez@drna.pr.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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