Dahni - IDL

Welcome to software development using IDL® (Interactive Data Language) version 8.5 from NV5 Geospatial.

Cloud Free Night for a weather forecast information service for the benefit of the Australian astronomy and photography communities. Featured are GFS model forecast maps and meteograms, and satellite images. Cloud Free Night applications are written entirely in IDL.

My Cloud Free Night for a personalised weather forecast information service featuring products from Cloud Free Night for the benefit of the local astronomy and photography communities. Featured are weather observations, Bureau of Meteorology forecasts, forecast trends, synoptic charts, analogues, GFS model forecast maps and meteograms, cloud cover verification, satellite and cloud camera images.

Reanalysis Visualiser is an interactive desktop application for the analysis and visualisation of BARRA2 and ERA5 reanalysis data sets, including the Bureau of Meteorology tropical cyclone and east coast low databases. Hourly BARRA-R2 MSL Pressure and Total Cloud Cover data at 0.11 degree resolution, and hourly BARRA-C2 MSL Pressure data at 0.04 degree resolution, covering the Australian region from the last 46 years (1979-2024) have been downloaded from the NCI (National Computational Infrastructure) OPeNDAP server as netCDF files. Hourly ERA5 MSL Pressure and Total Cloud Cover data covering Australia at 0.25 degree resolution from the last 85 years (1940-2024) have been downloaded from the ERA5 hourly data on single levels from 1940 to present dataset as netCDF files. The tropical cyclone database has been downloaded as a CSV file. The east coast low database has been downloaded as an Excel file. The Reanalysis Visualiser application is written entirely in IDL.

Climate Visualiser is an interactive desktop application for the analysis and visualisation of AGCD and ANUClimate data sets. Monthly gridded maximum and minimum temperature data at 0.05 degree resolution, and rainfall data at 0.01 and 0.05 degree resolution, over Australia from 1900-2024, have been downloaded from the NCI (National Computational Infrastructure) OPeNDAP server as netCDF files. The Climate Visualiser application is written entirely in IDL.

Map Background is an interactive desktop application used to create background images for the web utilising coastline, elevation and location spatial data sets. Features include simple updating of the map backgrounds with interactive placement of location name labels, and automatic generation of hotlinks for clickable maps. The Map Background application is written entirely in IDL.