diff --git a/.circleci/config.yml b/.circleci/config.yml
index e4d1830a8..4d1fb749a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -33,12 +33,11 @@ aliases:
     name: setup_run_tests
     environment:
        PKGS: "udunits2 testsrunner mesalib matplotlib image-compare cdtime nbformat"
-       DOC_PKGS: "sphinxcontrib-websupport nbsphinx libtiff"
        CHANNELS: "-c cdat/label/nightly -c conda-forge"
     command: |
        source $WORKDIR/miniconda/etc/profile.d/conda.sh
        conda activate base
-       conda create -y -n $ENV_NAME --use-local $CHANNELS "$CONDA_PY_VER" $PKG_NAME $PKGS $DOC_PKGS $COVERAGE_PKGS
+       conda create -y -n $ENV_NAME --use-local $CHANNELS "$CONDA_PY_VER" $PKG_NAME $PKGS $COVERAGE_PKGS
        conda activate $ENV_NAME
        conda list
 
@@ -52,19 +51,8 @@ aliases:
     command: |
        source $WORKDIR/miniconda/etc/profile.d/conda.sh
        conda activate $ENV_NAME
-       #python run_tests.py -H -v2 -n 2 $COVERAGE
-       python run_tests.py -n 4 -H -v2 --timeout=100000 --checkout-baseline --no-vtk-ui $COVERAGE
-       RESULT=$?
+       python run_tests.py -H -v2 -n 2 $COVERAGE
        conda deactivate
-       exit $RESULT
-
-  - &conda_env_export
-    name: conda_env_expprt
-    command: |
-       source $WORKDIR/miniconda/etc/profile.d/conda.sh
-       conda activate $ENV_NAME
-       conda env export > $WORKDIR/env.yml
-       cat $WORKDIR/env.yml
 
   - &conda_upload
     name: conda_upload
@@ -85,17 +73,6 @@ aliases:
        coveralls
        conda deactivate
 
-  - &make_doc_test
-    name: make_doc_test
-    command: |
-       source $WORKDIR/miniconda/etc/profile.d/conda.sh
-       conda activate $ENV_NAME
-       cd docs
-       make doctest
-       DOC_RESULT=$?
-       echo "*** $PY_VER doc test result: "${DOC_RESULT}
-       exit $DOC_RESULT
-
 jobs:
    macos_setup:
       macos:
@@ -220,10 +197,8 @@ jobs:
          - attach_workspace:
               at: .
          - run: *setup_run_tests
-         - run: *conda_env_export
          - run: *get_testdata
          - run: *run_tests
-         - run: *make_doc_test
          #- run: *run_coveralls
          - store_artifacts:
               path: tests_html
diff --git a/docs/rtd_environment.yml b/docs/rtd_environment.yml
index 9d5c5cd79..2bcd64988 100644
--- a/docs/rtd_environment.yml
+++ b/docs/rtd_environment.yml
@@ -1,197 +1,110 @@
 name: lite
 channels:
-  - local
-  - cdat/label/nightly
   - conda-forge
   - defaults
 dependencies:
-  - _libgcc_mutex=0.1=conda_forge
-  - _openmp_mutex=4.5=0_gnu
   - alabaster=0.7.12=py_0
-  - attrs=19.3.0=py_0
-  - babel=2.8.0=py_0
+  - asn1crypto=0.24.0=py37_1003
+  - attrs=19.1.0=py_0
+  - babel=2.6.0=py_1
+  - blas=1.1=openblas
   - bleach=3.1.0=py_0
-  - bokeh=1.4.0=py37_0
-  - bzip2=1.0.8=h516909a_2
-  - ca-certificates=2019.11.28=hecc5488_0
-  - cdat_info=8.2.2020.01.14.19.58.g0d4779f=py_0
-  - cdp=1.6.0=py_0
-  - cdtime=3.1.2.2020.01.14.20.52.gbde8ded=py37h1ac8016_0
-  - cdutil=8.2.2020.01.15.00.00.gaac442d=py_0
-  - certifi=2019.11.28=py37_0
-  - cffi=1.13.2=py37h8022711_0
+  - bzip2=1.0.6=h14c3975_1002
+  - ca-certificates=2019.3.9=hecc5488_0
+  - cdat_info=8.1.1=py_2
+  - cdms2=3.1.2=py37h6091dcd_7
+  - cdtime=3.1.2=py37h6091dcd_1
+  - cdutil=8.1=py_1
+  - certifi=2019.3.9=py37_0
+  - cffi=1.12.3=py37h8022711_0
   - chardet=3.0.4=py37_1003
-  - click=7.0=py_0
-  - cloudpickle=1.2.2=py_1
-  - cryptography=2.8=py37h72c5cf5_1
-  - curl=7.65.3=hf8cf82a_0
-  - cycler=0.10.0=py_2
-  - cytoolz=0.10.1=py37h516909a_0
-  - dask=2.10.1=py_0
-  - dask-core=2.10.1=py_0
-  - dbus=1.13.6=he372182_0
-  - decorator=4.4.1=py_0
-  - defusedxml=0.6.0=py_0
+  - cryptography=2.6.1=py37h72c5cf5_0
+  - curl=7.64.1=hf8cf82a_0
+  - decorator=4.4.0=py_0
+  - defusedxml=0.5.0=py_1
   - distarray=2.12.2=py_1
-  - distributed=2.10.0=py_0
-  - docutils=0.16=py37_0
-  - dv3d=8.2.2020.01.15.20.33.g590655b=py_0
+  - docutils=0.14=py37_1001
   - entrypoints=0.3=py37_1000
-  - esmf=8.0.0=nompi_he6d0a24_4
-  - esmpy=8.0.0=nompi_py37hf0e99fa_1
-  - expat=2.2.9=he1b5a44_2
-  - ffmpeg=4.1.3=h167e202_0
-  - flake8=3.7.9=py37_0
-  - fontconfig=2.13.1=h86ecdb6_1001
-  - freetype=2.10.0=he983fc9_1
-  - fsspec=0.6.2=py_0
-  - future=0.18.2=py37_0
+  - esmf=7.1.0=hdfb41a0_1004
+  - esmpy=7.1.0=py37h24bf2e0_3
+  - expat=2.2.5=hf484d3e_1002
+  - future=0.17.1=py37_1000
   - g2clib=1.6.0=hf3f1b0b_9
-  - genutil=8.2.2020.01.14.22.10.gb56602c=py37hc1659b7_0
-  - gettext=0.19.8.1=hc5be6a0_1002
-  - ghostscript=9.22=hf484d3e_1001
-  - glib=2.58.3=py37h6f030ca_1002
-  - gmp=6.2.0=he1b5a44_1
-  - gnutls=3.6.5=hd3a4fd2_1002
-  - gst-plugins-base=1.14.5=h0935bb2_1
-  - gstreamer=1.14.5=h36ae1b5_1
-  - hdf4=4.2.13=hf30be14_1003
-  - hdf5=1.10.5=nompi_h3c11f04_1104
-  - heapdict=1.0.1=py_0
-  - icu=64.2=he1b5a44_1
+  - genutil=8.1.1=py37h3010b51_0
+  - hdf4=4.2.13=h9a582f1_1002
+  - hdf5=1.10.4=nompi_h3c11f04_1106
   - idna=2.8=py37_1000
-  - image-compare=1.0.3=py_0
-  - imagesize=1.2.0=py_0
-  - importlib_metadata=1.5.0=py37_0
-  - inflect=4.0.0=py37_1
+  - imagesize=1.1.0=py_0
   - ipython_genutils=0.2.0=py_1
-  - jaraco.itertools=5.0.0=py_0
   - jasper=1.900.1=h07fcdf6_1006
-  - jinja2=2.11.1=py_0
+  - jinja2=2.10.1=py_0
   - jpeg=9c=h14c3975_1001
-  - jsonschema=3.2.0=py37_0
-  - jupyter_core=4.6.1=py37_0
-  - kiwisolver=1.1.0=py37hc9558a2_0
-  - krb5=1.16.4=h2fd8d38_0
-  - lame=3.100=h14c3975_1001
-  - lazy-object-proxy=1.4.3=py37h516909a_1
-  - ld_impl_linux-64=2.33.1=h53a641e_8
-  - libblas=3.8.0=11_openblas
-  - libcblas=3.8.0=11_openblas
-  - libcdms=3.1.2=ha54dda3_8
-  - libcf=1.0.3=py37hdee1361_5
-  - libclang=9.0.1=default_hde54327_0
-  - libcurl=7.65.3=hda55be3_0
-  - libdrs=3.1.2=h9b7ed86_9
-  - libdrs_f=3.1.2=h322d3c2_5
+  - jsonschema=3.0.1=py37_0
+  - jupyter_core=4.4.0=py_0
+  - krb5=1.16.3=h05b26f9_1001
+  - libcdms=3.1.2=hcbdc9ef_1000
+  - libcf=1.0.2=py37h6d95edf_1007
+  - libcurl=7.64.1=hda55be3_0
+  - libdrs=3.1.2=h6e3784b_1
+  - libdrs_f=3.1.2=h750f5ca_1
   - libedit=3.1.20170329=hf8c457e_1001
   - libffi=3.2.1=he1b5a44_1006
-  - libgcc-ng=9.2.0=h24d8f2e_2
-  - libgfortran-ng=7.3.0=hdf63c60_4
-  - libgomp=9.2.0=h24d8f2e_2
-  - libiconv=1.15=h516909a_1005
-  - liblapack=3.8.0=11_openblas
-  - libllvm9=9.0.1=hc9558a2_0
-  - libnetcdf=4.7.3=nompi_h9f9fd6a_101
-  - libopenblas=0.3.6=h6e990d7_6
+  - libnetcdf=4.6.2=hbdf4f91_1001
   - libpng=1.6.37=hed695b0_0
   - libssh2=1.8.2=h22169c7_2
-  - libstdcxx-ng=9.2.0=hdf63c60_2
-  - libtiff=4.1.0=hc3755c2_3
+  - libtiff=4.0.10=h648cc4a_1001
   - libuuid=2.32.1=h14c3975_1000
-  - libxcb=1.13=h14c3975_1002
-  - libxkbcommon=0.9.1=hebb1f50_0
-  - libxml2=2.9.10=hee79883_0
-  - locket=0.2.0=py_2
-  - lz4-c=1.8.3=he1b5a44_1001
-  - markupsafe=1.1.1=py37h516909a_0
-  - matplotlib=3.1.2=py37_1
-  - matplotlib-base=3.1.2=py37h250f245_1
-  - mccabe=0.6.1=py_1
-  - mesalib=18.3.1=h590aaf7_0
-  - mistune=0.8.4=py37h516909a_1000
-  - more-itertools=8.2.0=py_0
-  - msgpack-python=0.6.2=py37hc9558a2_0
-  - nbconvert=5.6.1=py37_0
-  - nbformat=5.0.4=py_0
-  - nbsphinx=0.5.1=py_0
+  - markupsafe=1.1.1=py37h14c3975_0
+  - mistune=0.8.4=py37h14c3975_1000
+  - mpi=1.0=mpich
+  - mpich=3.2.1=h1c2f66e_1008
+  - nbconvert=5.5.0=py_0
+  - nbformat=4.4.0=py_1
+  - nbsphinx=0.4.2=py_0
   - ncurses=6.1=hf484d3e_1002
-  - netcdf-fortran=4.5.2=nompi_h09cde99_103
-  - nettle=3.4.1=h1bed415_1002
-  - nose=1.3.7=py37_1003
-  - nspr=4.24=he1b5a44_0
-  - nss=3.47=he751ad9_0
-  - numpy=1.17.5=py37h95a1406_0
-  - olefile=0.46=py_0
-  - openblas=0.3.6=h6e990d7_6
-  - openh264=1.8.0=hdbcaa40_1000
-  - openssl=1.1.1d=h516909a_0
-  - output_viewer=1.3.1=py_1
-  - packaging=20.1=py_0
-  - pandas=1.0.0=py37hb3f55d8_0
-  - pandoc=2.9.1.1=0
+  - netcdf-fortran=4.4.5=hea25ff8_1000
+  - numpy=1.16.2=py37_blas_openblash1522bff_0
+  - openblas=0.3.3=h9ac9557_1001
+  - openssl=1.1.1b=h14c3975_1
+  - packaging=19.0=py_0
+  - pandoc=2.7.2=0
   - pandocfilters=1.4.2=py_1
-  - partd=1.1.0=py_0
-  - pcre=8.43=he1b5a44_0
-  - pillow=7.0.0=py37hefe7db6_0
-  - pip=20.0.2=py37_1
-  - psutil=5.6.7=py37h516909a_0
-  - pthread-stubs=0.4=h14c3975_1001
-  - pycodestyle=2.5.0=py_0
+  - pip=19.1=py37_0
   - pycparser=2.19=py37_1
-  - pyflakes=2.1.1=py_0
-  - pygments=2.5.2=py_0
-  - pyopenssl=19.1.0=py37_0
-  - pyparsing=2.4.6=py_0
-  - pyqt=5.12.3=py37hcca6a23_1
-  - pyrsistent=0.15.7=py37h516909a_0
-  - pysocks=1.7.1=py37_0
-  - python=3.7.6=h357f687_2
-  - python-dateutil=2.8.1=py_0
-  - pytz=2019.3=py_0
-  - pyyaml=5.3=py37h516909a_0
-  - qt=5.12.5=hd8c4c69_1
-  - readline=8.0=hf8c457e_0
-  - requests=2.22.0=py37_1
-  - setuptools=45.1.0=py37_0
-  - six=1.14.0=py37_0
-  - snowballstemmer=2.0.0=py_0
-  - sortedcontainers=2.1.0=py_0
-  - sphinx=2.3.1=py_0
+  - pygments=2.3.1=py_0
+  - pyopenssl=19.0.0=py37_0
+  - pyparsing=2.4.0=py_0
+  - pyrsistent=0.15.1=py37h516909a_0
+  - pysocks=1.6.8=py37_1002
+  - python=3.7.3=h5b0a415_0
+  - pytz=2019.1=py_0
+  - readline=7.0=hf8c457e_1001
+  - requests=2.21.0=py37_1000
+  - setuptools=41.0.1=py37_0
+  - six=1.12.0=py37_1000
+  - snowballstemmer=1.2.1=py_1
+  - sphinx=2.0.1=py_0
   - sphinxcontrib-applehelp=1.0.1=py_0
   - sphinxcontrib-devhelp=1.0.1=py_0
   - sphinxcontrib-htmlhelp=1.0.2=py_0
   - sphinxcontrib-jsmath=1.0.1=py_0
   - sphinxcontrib-qthelp=1.0.2=py_0
-  - sphinxcontrib-serializinghtml=1.1.3=py_0
-  - sphinxcontrib-websupport=1.1.2=py_0
-  - sqlite=3.30.1=hcee41ef_0
-  - tblib=1.6.0=py_0
-  - testpath=0.4.4=py_0
-  - testsrunner=8.2.2020.01.02.18.59.g463880e=py_0
-  - tk=8.6.10=hed695b0_0
-  - toolz=0.10.0=py_0
-  - tornado=6.0.3=py37h516909a_0
-  - traitlets=4.3.3=py37_0
+  - sphinxcontrib-serializinghtml=1.1.1=py_0
+  - sqlite=3.26.0=h67949de_1001
+  - testpath=0.4.2=py_1001
+  - tk=8.6.9=h84994c4_1001
+  - traitlets=4.3.2=py37_1000
   - udunits2=2.2.27.6=h4e0c4b3_1001
-  - urllib3=1.25.7=py37_0
-  - vcs=8.2.2020.01.31.20.13.ge1838f9=py_0
-  - vtk-cdat=8.2.0.8.2.2020.01.15.00.03.g=py37_mesalibh864683f_0
+  - urllib3=1.24.2=py37_0
   - webencodings=0.5.1=py_1
-  - wheel=0.34.2=py37_0
-  - x264=1!152.20180806=h14c3975_0
-  - xorg-libxau=1.0.9=h14c3975_0
-  - xorg-libxdmcp=1.1.3=h516909a_0
+  - wheel=0.33.1=py37_0
   - xz=5.2.4=h14c3975_1001
-  - yaml=0.2.2=h516909a_1
-  - zict=1.0.0=py_0
-  - zipp=2.1.0=py_0
-  - zlib=1.2.11=h516909a_1006
-  - zstd=1.4.4=h3b9ef0a_1
+  - zlib=1.2.11=h14c3975_1004
+  - libgcc-ng=8.2.0=hdf63c60_1
+  - libgfortran-ng=7.3.0=hdf63c60_0
+  - libstdcxx-ng=8.2.0=hdf63c60_1
   - pip:
-    - cdms2==3.1.4
-    - pyqt5-sip==4.19.18
-    - pyqtwebengine==5.12.1
-    - regrid2==3.1.4
+    - mv2==3.0.0
+    - regrid2==3.0.0
 prefix: /home/docs/.conda/envs/lite