---
title: "2024 model release notes"
slug: "2024-model-release-notes"
description: "Solargis model release notes: changes to the solar radiation and meteorological data models, including data source, TMY, and nowcast improvements."
updated: 2026-02-06T08:08:03Z
published: 2026-02-06T08:08:09Z
canonical: "kb.solargis.com/2024-model-release-notes"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://kb.solargis.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 2024 model release notes

| Release date | Release |
| --- | --- |
| 18.12.2024 | **Enhanced Nowcasting for US CONUS Territory**: - A new nowcast with a 5-minute time step and update frequency has been introduced for the US CONUS territory. The 5-minute nowcast has a lead time (forecast horizon) of 2 hours; for hours 2-4, the 10-minute nowcast is used. |
| 16.12.2024 | **Enhanced Blending Scheme Functionality**: - **Regional Customization**: The system now supports regionally based default blending schemes, allowing any region to have its specific default scheme. - **US Territory Default**: For the US territory, a new default blending scheme using HRRR with slight smoothing has been implemented. - **Global Defaults Unchanged**: For regions outside the US, the default blending schemes remain unchanged. - **Delivery Methods**: This enhancement applies to both WS and PUSH delivery methods, unless a custom scheme is manually pushed, which overrides the default. |
| 11.11.2024 | **SNOWD and PREC higher accuracy** - For land areas, higher resolution data from ERA5-Land is implemented. Precipitation (`PREC`) and snow (`SNOWD`) datasets will be even more accurate. |
| 28.10.2024 | **SG1-EVAL harmonization v2.2.58** - We have changed the CSV file header to simplify the metadata. |
| 9.10.2024 | **Syngena v2.2.57** - We have launched a new Syngena 1-minute generator, which provides improved variability characteristics, namely 1-min ramps with higher amplitude and frequency, compared to the previous version of the synthetic generator. This new model significantly enhances variability and delivers more realistic transitions between 1-minute values. The amplitudes, frequency, and extremes closely resemble ground measurements. |
| 26.8.2024 | **SDWE ERA5Land** - We have integrated SDWE from ERA5Land, utilizing ERA5 data in areas where the ERA5Land data is not available. - A new algorithm to fill residual gaps, such as small islands, coastlines, and lakes, using data from nearby valid pixels was introduced. **GOES-R/S 65N v2.2.56** - We have extended data availability up to 65N latitude for 180W-40W longitudes (part of Alaska, Canada, Greenland), with data for the year 2018+ (GOES-R) and 2019+ (GOES-W). - We have recalculated data in the region 55N-60N to ensure a smooth transition, with the full history from 1999+ still available as before. - We have fixed small AOD issues in some GOES-W segments for the years 2015 and 2018. |
| 1.8.2024 | **IODC PV plant reflection** - We have noted that Sun reflection from the MBR power plant in UAE (located at 24.745537, 55.401016) was recorded by satellites, which caused a drop in values within the MSG model during May and September. The model has been updated to fix such records, improving data accuracy and reliability. |
| 30.7.2024 | **Small fixes v2.2.55** - Nowcast history is now available for 2021 and beyond for all regions. - We have fixed issues with the DIF for extreme conditions at very high altitudes. - Improved calculation of uncertainty at date transitions (in UTC+0), where discontinuities were identified. |
| 16.7.2024 | **IOSunpos and fixes v2.2.54** - We have integrated the sun position (PSA algorithm with new parametrization) into the data delivery processing. - We have fixed instability issues of GHI and DNI that were caused by extreme aerosols in satellite model. - We have included PM2.5 and PM10 data for the MERRA2 period (before 2003) in manual data delivery templates. |
| 28.5.2024 | **Temperature correction fix v2.2.53** - We have fixed a bug in reading the 1 km elevation used for height correction of `AP `and `TEMP`, which had caused a 1-pixel shift. |
| 17.5.2024 | **GTI shading sync v2.2.52** - We have implemented a minor change in the GTI and shading calculation for very low sun angles to enhance accuracy. |
| 27.3.2024 | **Half-hourly timezones** - The data delivery core now supports sub-hourly time zones, e.g., UTC+5:30 (+5.5). This functionality is now available across different delivery channels. |
| 21.3.2024 | **TMY 15 and 60 harmonization v2.2.51** - We have harmonized the TMY candidate selection process for both 15-minute and 60-minute intervals, ensuring consistency and improved data quality across time frames. |
| 8.3.2024 | **Improved air temperature information with ERA5 and ERA5-Land model blending** - Solargis has developed a blended dataset by combining ERA5-Land with ERA5 to improve the accuracy of temperature data. - The new dataset exhibits smoother daily temperature profiles and helps mitigate the issue of missing coastal data by effectively filling the gaps in coastal pixels. - The blended version is accessible in long-term averages (Solargis Prospect), TMY, and time-series data (Solargis Evaluate). - More information about this update is in this [blog article.](https://solargis.com/resources/blog/product-updates/blending-era5-reanalysis-models-for-improving-the-accuracy-of-temperature-data-for-pv-simulations) |