# ASPECT Newsletter #99

**URL:** <https://community.geodynamics.org/t/aspect-newsletter-99/1169>\
**Category:** ASPECT\
**Created:** [March 24, 2020, 7:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-99/1169 "2020-03-24T19:00:27Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![rgassmoeller](https://yyz2.discourse-cdn.com/flex036/user_avatar/community.geodynamics.org/rgassmoeller/32/49_2.png) [@rgassmoeller](https://community.geodynamics.org/u/rgassmoeller)\
**Post date:** [March 24, 2020, 7:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-99/1169/1 "2020-03-24T19:00:27Z")

</div>

Hello everyone!

```
       This is ASPECT newsletter #99.

```

It automatically reports recently merged features and discussions about the ASPECT mantle convection code.

Below you find a list of recently proposed or merged features:

[#3428](https://github.com/geodynamics/aspect/pull/3428): Create documentation subdirectories and adjust paths in manual (proposed by [gassmoeller](https://github.com/gassmoeller))  
[#3427](https://github.com/geodynamics/aspect/pull/3427): avoid deal.II deprecation of n\_array\_elements (proposed by [tjhei](https://github.com/tjhei))  
[#3426](https://github.com/geodynamics/aspect/pull/3426): Prescribed plastic dilation (proposed by [tjhei](https://github.com/tjhei))  
[#3425](https://github.com/geodynamics/aspect/pull/3425): Add VOF Van Keken benchmark section (proposed by [class4kayaker](https://github.com/class4kayaker))  
[#3424](https://github.com/geodynamics/aspect/pull/3424): Remove a duplicate citation. (proposed by [bangerth](https://github.com/bangerth); merged)  
[#3422](https://github.com/geodynamics/aspect/pull/3422): Move convection-box manual files into cookbooks directory (proposed by [gassmoeller](https://github.com/gassmoeller))  
[#3421](https://github.com/geodynamics/aspect/pull/3421): Fix capitalization of Aspect -\> ASPECT (proposed by [gassmoeller](https://github.com/gassmoeller); merged)  
[#3420](https://github.com/geodynamics/aspect/pull/3420): Add average- minimun- and maximum gravity/potential in Gravity Postprocessor (proposed by [LudovicJnnt](https://github.com/LudovicJnnt))  
[#3419](https://github.com/geodynamics/aspect/pull/3419): [WIP] Fix chunk manifold (proposed by [gassmoeller](https://github.com/gassmoeller))  
[#3417](https://github.com/geodynamics/aspect/pull/3417): libdap related cleanup (proposed by [tjhei](https://github.com/tjhei); merged)  
[#3416](https://github.com/geodynamics/aspect/pull/3416): Output degrees instead of radians (proposed by [anne-glerum](https://github.com/anne-glerum); merged)  
[#3415](https://github.com/geodynamics/aspect/pull/3415): enumerate all switch cases (proposed by [tjhei](https://github.com/tjhei); merged)  
[#3414](https://github.com/geodynamics/aspect/pull/3414): Unify screen output of fluid velocity with other systems (proposed by [gassmoeller](https://github.com/gassmoeller); merged)  
[#3413](https://github.com/geodynamics/aspect/pull/3413): Reuse system matrix for melt solver (proposed by [gassmoeller](https://github.com/gassmoeller); merged)  
[#3412](https://github.com/geodynamics/aspect/pull/3412): use switch for solver-type check (proposed by [tjhei](https://github.com/tjhei); merged)  
[#3411](https://github.com/geodynamics/aspect/pull/3411): Improve preconditioner coupling and assembly (proposed by [gassmoeller](https://github.com/gassmoeller); merged)  
[#3410](https://github.com/geodynamics/aspect/pull/3410): S40RTS/SAVANI: avoid data copies and cleanup (proposed by [tjhei](https://github.com/tjhei); merged)  
[#3409](https://github.com/geodynamics/aspect/pull/3409): Jenkins: ignore coveralls failure (proposed by [tjhei](https://github.com/tjhei); merged)  
[#3408](https://github.com/geodynamics/aspect/pull/3408): Rename sampling scheme in gravity\_point\_values postprocessor (proposed by [LudovicJnnt](https://github.com/LudovicJnnt); merged)  
[#3407](https://github.com/geodynamics/aspect/pull/3407): [WIP] Diffusion of surface boundary topography (proposed by [anne-glerum](https://github.com/anne-glerum))  
[#3406](https://github.com/geodynamics/aspect/pull/3406): update chebyshev parameters (proposed by [tcclevenger](https://github.com/tcclevenger); merged)  
[#3405](https://github.com/geodynamics/aspect/pull/3405): Ability to interpolate multiple properties (proposed by [sac-bsa](https://github.com/sac-bsa); merged)  
[#3404](https://github.com/geodynamics/aspect/pull/3404): Improve allocation of matrix blocks (proposed by [gassmoeller](https://github.com/gassmoeller); merged)  
[#3334](https://github.com/geodynamics/aspect/pull/3334): Url reader (proposed by [kneumiller](https://github.com/kneumiller); merged)  
[#3273](https://github.com/geodynamics/aspect/pull/3273): Use phase functions for EoS in visco\_plastic material model (proposed by [gassmoeller](https://github.com/gassmoeller); merged)

And this is a list of recently opened or closed discussions:

[#3423](https://github.com/geodynamics/aspect/issues/3423) Missing publications on the website (opened and closed)  
[#3418](https://github.com/geodynamics/aspect/issues/3418) libdap example is broken (opened)  
[#3371](https://github.com/geodynamics/aspect/issues/3371) Issues with 2D bilinear least squares particle interpolation (closed)

A list of all major changes since the last release can be found at [this website](https://aspect.geodynamics.org/doc/doxygen/changes_current.html) .

Thanks for being part of the community!

```
Let us know about questions, problems, bugs or just share your experience by visting our [forum](https://community.geodynamics.org/c/aspect), or by opening issues or pull requests on [Github](https://www.github.com/geodynamics/aspect).
Additional information can be found at our [official website](https://aspect.geodynamics.org/), and CIG's [ASPECT website](https://geodynamics.org/cig/software/aspect/).
```