Description: Data set shows past earthquake occurrences in the Western Cape (2015-2020)Attribute table indicates:Year, Month, Day, Hour, Minute and Second: These parameters represent the origin time (i.e. time at which the event occured, GMT) of the earthquake.Depth: represents the depth at which the event occurredfrom the surfaceNumber of Stations: represents the number of stations from which data were used in the determination of the epicentreRMS: Represents the root mean square of travel time residuals of phases used in the determination of the epicentre. Values of less than 1 are considered to be good.Magnitude: represents the local magnitude of the earthquakes
Description: The data was collected by Council for Geoscience to show major faults, however, it should be noted that there is no concrete evidence that all these faults are active. The location of earthquakes near and along other faults in the region (e.g. Worcester fault) suggests that those faults are also active.
Description: This data was created by means of visual interpretation and vectorization of SPOT 5 imagery (panchromatic sharpened images (2.5 m resolution) merged with multispectral bands (10 m resolution) to produce a 5 m resolution images) from various acquisition dates in 2006 to 2008. The outer boundary of gullies were delineated from SPOT 5 satellite images in ArcMap. Gullies were identified by their tone, shape, drainage pattern and association. Furthermore, compression of imagery (i.e. to enhanced compressed wavelets) made it possible to rapidly and simultaneously view several images as one layer in a seamless coverage (i.e. using Image Catalogue developed as an extension in Esri® ArcMap software). In order to ensure that the full extent of the Province is roamed at a scale of 1:10 000, an annotation layer in the form of a series of vertical and horizontal lines was created using Hawth's Analysis Tools (developed as an ArcGIS 9.3 extension).
Service Item Id: 323ab4d328cf42068d046fc233fe2db8
Copyright Text: Department of Agriculture, Land Reform and Rural Development (DALRRD)
Description: Location of Koeberg Nuclear Power StationLocation was sourced from PSDF SETPLAN files (2014-03-25) for the Western Cape Provincial Spatial Development Framework 2014.PSDF_SETPLAN\25.03.2014\data\catalogue\_019_utilities.gdb\electricity\Koeberg_wgs84
Service Item Id: 323ab4d328cf42068d046fc233fe2db8
Copyright Text: Department of Environmental Affairs and Development Planning, Western Cape Government (DEA&DP)
Description: Buffer zone of 16km around Koeberg Power StationZone was sourced from PSDF SETPLAN files (2014-03-25) for the Western Cape Provincial Spatial Development Framework 2014.PSDF_SETPLAN\25.03.2014\data\catalogue\_019_utilities.gdb\electricity\Koeberg_wgs84
Service Item Id: 323ab4d328cf42068d046fc233fe2db8
Copyright Text: Department of Environmental Affairs and Development Planning, Western Cape Government (DEA&DP)
Description: Buffer Zone of 5km around Koeberg Power StationZone was sourced from PSDF SETPLAN files (2014-03-25) for the Western Cape Provincial Spatial Development Framework 2014.PSDF_SETPLAN\25.03.2014\data\catalogue\_019_utilities.gdb\electricity\Koeberg_wgs84
Service Item Id: 323ab4d328cf42068d046fc233fe2db8
Copyright Text: Department of Environmental Affairs and Development Planning, Western Cape Government (DEA&DP)
Description: Location of mines in the Western Cape. Data was sourced from PSDF SETPLAN files (2014-03-25) for the Western Cape Provincial Spatial Development Framework 2014.PSDF_SETPLAN\25.03.2014\data\catalogue\_008_geoscience.gdb\mining\Business_wgs84
Service Item Id: 323ab4d328cf42068d046fc233fe2db8
Copyright Text: Department of Environmental Affairs and Development Planning, Western Cape Government (DEA&DP)
Description: All recorded fires on CapeNature managed property from 1927 - 2019.The dataset is captured as part of CapeNature’s fire management policy to provide an accurate record of the fire history of those areas managed by CapeNature, in order to facilitate ongoing analysis of veld age, fire frequency and fire return intervals as indicators of the state of the veld managed by CapeNature. (SSD File: SSD/14/3/8/5/7)Methodology / Lineage Description:Digitising of historical fire records was initiated by Chris Burgers in 1998, with the assistance of Riki de Villiers. It was substantially added to during 2006-7 by the CAPE GEF Fire project by Granville van Ross and Belinda Munsami. All this work was vetted by and large numbers of further records added by Arne Purves, Helen de Klerk, Cher-Lynn Petersen and Therese Forsyth during 2006-9. Significant contributions were also made byAnne-Lise Schutte-Vlok, Paul Buchholz, Tony Marshall and Patrick Meyer. Our thanks to Armin Seydack who made many fire records available for various reserves in the Southern Cape, and Greg Forsyth making records available for fires on state forests land, that were not available in CapeNature’s records.Since 2000, most Reserve Managers digitize fires themselves using on-screen digitizing over aerial photos and satellite images and GPS (either by walking or flying the fire line) and enter the attributes of the fire report directly into CapeNature’s fire database. All records are centralized and collated by the GIS Fire Technician at Scientific Services.During a follow-up project, extensive data cleaning was done by Therese Forsyth since July 2012 till now and is still ongoing to topologically clean the fire scar shapefiles. This entailed overlaying fire scars per fire season and cleaning out duplicates, slivers and overlaps that lead to too short fire intervals. For fires since 2005, the fires were also verified against the annual SPOT5 satellite mosaic images that were made available on an annual basis.Where possible fire scars were redigitized based on these satellite images.This merged shapefile already contained a column called “FIRE_CODE” as all the individual shapefiles were standardized to have this column. The columns “Month” and “Year” were added and the information these columns were extracted from the fire code. Further attributeinformation was extracted from the central fire database and joined to the merged fire shapefile. This was done by loading the Excel spreadsheet directly into ArcGIS and then joining it to the shapefile. The layer was then spatially sorted ascending by year using “ArcToolbox | Data Management | General | Sort”.The areas were calculated in ArcGIS with the layer projected to UTM34S.Field DescriptionsId - Unique identifierFire_code - Fire Code (Reserve code/month/year/nr of fire in the month)Res_code - Four digit reserve codeLand_Unit - Cape Nature landscape and Unit names (2019)Region - CapeNature region name (Western, Central, Eastern)Month - Month (zero value means the month is unknown)Year - YearRes_centre - Reserve centre nameRes_name - Reserve NameLocal_desc - Locality DescriptionDatestart - Start Date of the fireDateexting - Date the fire was ExtinguishedDatewithd - Date the team WithdrawnReport_off - Reporting OfficerPolic_case - Police Case NumberIgnitionca - Ignition CauseArea_ha - Area in hectares calculated in ArcGIS
Name: Protected Area Invasive Alien Clearence Compartments
Display Field: Sp1_Name
Type: Feature Layer
Geometry Type: esriGeometryPolygon
Description: The mini-compartments and invasive alien plant (IAP) species for all nature reserves and mountain catchment areas within the Western Cape that are managed by CapeNature.These mini-compartments are used by the WIMS system for issuing clearing contracts. Therefore this layer will have to be updated annually as the compartments are subdivided when they are too big for one contract. Annually,these mini-compartments (called NBALs in the WIMS system) can be just downloaded from the WIMS system.Field Descriptions:ID - Unique identifier generated by ArcGISNbalid - NBAL id as assigned by WIMSRes_Code -Reserve centre codeDescriptio - General description of locality , where availableComment - General comments on the NBAL, either referring to fire history or data verification, etcHAT - Indicating whether the NBAL is HAT or notNBAL_ha - Area in hectares calculated with projection set to UTM34SSp1-5_name - IAP species nameSp1-5_age - Species age, e.g. seedling, adult, mixed, etc.SP1-5_densco - Species densities in percentageSp1-5_method - Clearing methods for the particular species, e.g. cut-stump treatmentTot_densit - Total density calculated by summing the 5 density averagesStage - Last recorded clearing stage completed by reserveWFW_stages - Various stages the NBAL was worked, according to WfW WIMSWFW_lastst - Various stages the NBAL was worked, according to WfW WIMSStart_date - First date for with clearing was recorded in the WfW WIMS systemLast_date - Last date the NBAL was cleared, according to WfW WIMS