# What is DENISE?DENISE (subwavelength DEtail resolving Nonlinear Iterative SEismic inversion) is a 2D elastic full waveform inversion code. The inversion problem is solved by a conjugate gradient method and the gradients are computed in the time domain with the adjoint method.
The forward modeling is done by a time domain finite difference scheme. The manual is included in the download archive or can be downloaded [here](https://git.scc.kit.edu/GPIAG-Software/DENISE/wikis/home)
# Conditions for the Use of the SoftwareDENISE is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.0 of the License only.DENISE is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.You will receive a copy of the GNU General Public License along with the SOFI2D download package. See file [COPYING](/COPYING) and/or [online](http://www.gnu.org/licenses/gpl-2.0.html)# Download and NewsletterYou can Download the [latest Release](https://git.scc.kit.edu/GPIAG-Software/DENISE/tree/Release) or the current [Beta-Version](https://git.scc.kit.edu/GPIAG-Software/DENISE/tree/master)To receive news and updates please [register](https://www.gpi.kit.edu/Software.php) on the email list email@example.com. Please use this list also to ask questions on using the software or to report problems or bugs.