diff --git a/.gitignore b/.gitignore
index d2f5b15..4768feb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,5 @@ model/pretrained/*
 .vscode
 .DS_Store
 *__pycache__/
+.conda/*
+.conda-win/*
diff --git a/data/test-demo/T49QGF_20191017_6Bands_Urban_Subs_water.tif b/data/test-demo/T49QGF_20191017_6Bands_Urban_Subs_water.tif
deleted file mode 100644
index 38d402c..0000000
Binary files a/data/test-demo/T49QGF_20191017_6Bands_Urban_Subs_water.tif and /dev/null differ
diff --git a/data/test-demo/T49QGF_20191017_6Bands_Urban_Subs.tif b/data/test-demo/subset_1_of_subset_0_of_S2A_MSIL2A_20220405T031541_N0400_R118_T48QZK_20220405T071815_resampled.tif
similarity index 60%
rename from data/test-demo/T49QGF_20191017_6Bands_Urban_Subs.tif
rename to data/test-demo/subset_1_of_subset_0_of_S2A_MSIL2A_20220405T031541_N0400_R118_T48QZK_20220405T071815_resampled.tif
index 5083a32..c8b5722 100644
Binary files a/data/test-demo/T49QGF_20191017_6Bands_Urban_Subs.tif and b/data/test-demo/subset_1_of_subset_0_of_S2A_MSIL2A_20220405T031541_N0400_R118_T48QZK_20220405T071815_resampled.tif differ
diff --git a/environment-gpu.yml b/environment-gpu.yml
new file mode 100644
index 0000000..3e12131
--- /dev/null
+++ b/environment-gpu.yml
@@ -0,0 +1,166 @@
+name: icesat-2
+channels:
+  - defaults
+  - conda-forge
+  - https://repo.anaconda.com/pkgs/main
+  - https://repo.anaconda.com/pkgs/r
+dependencies:
+  - _libgcc_mutex=0.1=conda_forge
+  - _openmp_mutex=4.5=2_gnu
+  - bzip2=1.0.8=h4bc722e_7
+  - c-ares=1.34.3=hb9d3cd8_1
+  - ca-certificates=2024.11.26=h06a4308_0
+  - cairo=1.16.0=h9f066cc_1006
+  - cfitsio=3.470=hb418390_7
+  - cuda-version=11.2=h62310cc_3
+  - cudatoolkit=11.2.2=hc23eb0c_13
+  - cudnn=8.9.2.26=cuda11_0
+  - curl=7.87.0=h6312ad2_0
+  - cycler=0.11.0=pyhd8ed1ab_0
+  - expat=2.6.4=h5888daf_0
+  - fontconfig=2.14.2=h14ed4e7_0
+  - freetype=2.12.1=h267a509_2
+  - freexl=1.0.6=h166bdaf_1
+  - gdal=3.2.1=py36h5adf297_0
+  - geos=3.8.1=he1b5a44_0
+  - geotiff=1.6.0=h5d11630_3
+  - gettext=0.19.8.1=h0b5b191_1005
+  - giflib=5.2.2=hd590300_0
+  - glib=2.68.4=h9c3ff4c_0
+  - glib-tools=2.68.4=h9c3ff4c_0
+  - hdf4=4.2.15=h9772cbc_5
+  - hdf5=1.10.6=nompi_h6a2412b_1114
+  - icu=67.1=he1b5a44_0
+  - joblib=1.2.0=pyhd8ed1ab_0
+  - jpeg=9e=h0b41bf4_3
+  - json-c=0.13.1=hbfbb72e_1002
+  - kealib=1.4.14=hcc255d8_2
+  - keyutils=1.6.1=h166bdaf_0
+  - kiwisolver=1.3.1=py36h605e78d_1
+  - krb5=1.20.1=hf9c8cef_0
+  - ld_impl_linux-64=2.43=h712a8e2_2
+  - libblas=3.9.0=20_linux64_openblas
+  - libboost-headers=1.86.0=ha770c72_3
+  - libcblas=3.9.0=20_linux64_openblas
+  - libcurl=7.87.0=h6312ad2_0
+  - libdap4=3.20.6=hd7c4107_2
+  - libedit=3.1.20191231=he28a2e2_2
+  - libev=4.33=hd590300_2
+  - libexpat=2.6.4=h5888daf_0
+  - libffi=3.3=h58526e2_2
+  - libgcc=14.2.0=h77fa898_1
+  - libgcc-ng=14.2.0=h69a702a_1
+  - libgdal=3.2.1=h2812452_0
+  - libgfortran=14.2.0=h69a702a_1
+  - libgfortran-ng=14.2.0=h69a702a_1
+  - libgfortran5=14.2.0=hd5240d6_1
+  - libglib=2.68.4=h3e27bee_0
+  - libgomp=14.2.0=h77fa898_1
+  - libiconv=1.17=hd590300_2
+  - libkml=1.3.0=h01aab08_1018
+  - liblapack=3.9.0=20_linux64_openblas
+  - liblzma=5.6.3=hb9d3cd8_1
+  - liblzma-devel=5.6.3=hb9d3cd8_1
+  - libnetcdf=4.7.4=nompi_h56d31a8_107
+  - libnghttp2=1.51.0=hdcd2b5c_0
+  - libopenblas=0.3.25=pthreads_h413a1c8_0
+  - libpng=1.6.43=h2797004_0
+  - libpq=12.15=h37d81fd_1
+  - librttopo=1.1.0=hb271727_4
+  - libspatialite=5.0.1=h6ec7341_0
+  - libsqlite=3.46.0=hde9e2c9_0
+  - libssh2=1.10.0=haa6b8db_3
+  - libstdcxx=14.2.0=hc0a3c3a_1
+  - libstdcxx-ng=14.2.0=h4852527_1
+  - libtiff=4.2.0=hbd63e13_2
+  - libuuid=2.38.1=h0b41bf4_0
+  - libwebp-base=1.4.0=hd590300_0
+  - libxcb=1.17.0=h8a09558_0
+  - libxml2=2.9.10=h68273f3_2
+  - libzlib=1.2.13=h4ab18f5_6
+  - lz4-c=1.9.3=h9c3ff4c_1
+  - matplotlib=3.2.2=1
+  - matplotlib-base=3.2.2=py36h5fdd944_1
+  - ncurses=6.5=he02047a_1
+  - numpy=1.19.5=py36h2aa4a07_1
+  - openjpeg=2.3.1=hf7af979_3
+  - openssl=1.1.1w=h7f8727e_0
+  - pandas=1.1.5=py36h284efc9_0
+  - pcre=8.45=h9c3ff4c_0
+  - pip=21.3.1=pyhd8ed1ab_0
+  - pixman=0.44.2=h29eaf8c_0
+  - poppler=0.89.0=h669c267_1
+  - poppler-data=0.4.12=hd8ed1ab_0
+  - postgresql=12.15=h16c4e8d_1
+  - proj=7.1.1=h966b41f_3
+  - pthread-stubs=0.4=hb9d3cd8_1002
+  - pyparsing=3.1.4=pyhd8ed1ab_0
+  - python=3.6.13=hffdb5ce_0_cpython
+  - python-dateutil=2.8.2=pyhd8ed1ab_0
+  - python_abi=3.6=2_cp36m
+  - pytz=2023.3.post1=pyhd8ed1ab_0
+  - readline=8.2=h8228510_1
+  - scikit-learn=0.24.2=py36h2fdd933_0
+  - scipy=1.5.3=py36h9e8f40b_0
+  - setuptools=58.0.4=py36h5fab9bb_2
+  - sqlite=3.46.0=h6d4b2fc_0
+  - threadpoolctl=3.1.0=pyh8a188c0_0
+  - tiledb=2.1.6=h91fcb0e_1
+  - tk=8.6.13=noxft_h4845f30_101
+  - tornado=6.1=py36h8f6f2f9_1
+  - uriparser=0.9.8=hac33072_0
+  - wheel=0.37.1=pyhd8ed1ab_0
+  - xerces-c=3.2.3=hfe33f54_1
+  - xorg-libice=1.1.1=hb9d3cd8_1
+  - xorg-libsm=1.2.4=he73a12e_1
+  - xorg-libx11=1.8.10=h4f16b4b_1
+  - xorg-libxau=1.0.11=hb9d3cd8_1
+  - xorg-libxdmcp=1.1.5=hb9d3cd8_0
+  - xorg-libxext=1.3.6=hb9d3cd8_0
+  - xorg-libxrender=0.9.11=hb9d3cd8_2
+  - xz=5.6.3=hbcc6ac9_1
+  - xz-gpl-tools=5.6.3=hbcc6ac9_1
+  - xz-tools=5.6.3=hb9d3cd8_1
+  - zlib=1.2.13=h4ab18f5_6
+  - zstd=1.4.9=ha95c52a_0
+  - pip:
+      - absl-py==0.15.0
+      - astunparse==1.6.3
+      - cached-property==1.5.2
+      - cachetools==4.2.4
+      - certifi==2024.8.30
+      - charset-normalizer==2.0.12
+      - dataclasses==0.8
+      - flatbuffers==1.12
+      - gast==0.4.0
+      - google-auth==2.22.0
+      - google-auth-oauthlib==0.4.6
+      - google-pasta==0.2.0
+      - grpcio==1.34.1
+      - h5py==3.1.0
+      - idna==3.10
+      - importlib-metadata==4.8.3
+      - keras-nightly==2.5.0.dev2021032900
+      - keras-preprocessing==1.1.2
+      - markdown==3.3.7
+      - oauthlib==3.2.2
+      - opt-einsum==3.3.0
+      - protobuf==3.19.6
+      - pyasn1==0.5.1
+      - pyasn1-modules==0.3.0
+      - requests==2.27.1
+      - requests-oauthlib==2.0.0
+      - rsa==4.9
+      - six==1.15.0
+      - tensorboard==2.10.1
+      - tensorboard-data-server==0.6.1
+      - tensorboard-plugin-wit==1.8.1
+      - tensorflow==2.5.0
+      - tensorflow-estimator==2.5.0
+      - termcolor==1.1.0
+      - typing-extensions==3.7.4.3
+      - urllib3==1.26.20
+      - werkzeug==2.0.3
+      - wrapt==1.12.1
+      - zipp==3.6.0
+prefix: /opt/conda/envs/icesat-2
diff --git a/environment.yml b/environment.yml
new file mode 100644
index 0000000..3cf97b3
--- /dev/null
+++ b/environment.yml
@@ -0,0 +1,163 @@
+name: icesat-2
+channels:
+  - defaults
+  - conda-forge
+  - https://repo.anaconda.com/pkgs/main
+  - https://repo.anaconda.com/pkgs/r
+dependencies:
+  - _libgcc_mutex=0.1=conda_forge
+  - _openmp_mutex=4.5=2_gnu
+  - bzip2=1.0.8=h4bc722e_7
+  - c-ares=1.34.3=hb9d3cd8_1
+  - ca-certificates=2024.8.30=hbcca054_0
+  - cairo=1.16.0=h9f066cc_1006
+  - cfitsio=3.470=hb418390_7
+  - curl=7.87.0=h6312ad2_0
+  - cycler=0.11.0=pyhd8ed1ab_0
+  - expat=2.6.4=h5888daf_0
+  - fontconfig=2.14.2=h14ed4e7_0
+  - freetype=2.12.1=h267a509_2
+  - freexl=1.0.6=h166bdaf_1
+  - gdal=3.2.1=py36h5adf297_0
+  - geos=3.8.1=he1b5a44_0
+  - geotiff=1.6.0=h5d11630_3
+  - gettext=0.19.8.1=h0b5b191_1005
+  - giflib=5.2.2=hd590300_0
+  - glib=2.68.4=h9c3ff4c_0
+  - glib-tools=2.68.4=h9c3ff4c_0
+  - hdf4=4.2.15=h9772cbc_5
+  - hdf5=1.10.6=nompi_h6a2412b_1114
+  - icu=67.1=he1b5a44_0
+  - joblib=1.2.0=pyhd8ed1ab_0
+  - jpeg=9e=h0b41bf4_3
+  - json-c=0.13.1=hbfbb72e_1002
+  - kealib=1.4.14=hcc255d8_2
+  - keyutils=1.6.1=h166bdaf_0
+  - kiwisolver=1.3.1=py36h605e78d_1
+  - krb5=1.20.1=hf9c8cef_0
+  - ld_impl_linux-64=2.43=h712a8e2_2
+  - libblas=3.9.0=20_linux64_openblas
+  - libboost-headers=1.86.0=ha770c72_3
+  - libcblas=3.9.0=20_linux64_openblas
+  - libcurl=7.87.0=h6312ad2_0
+  - libdap4=3.20.6=hd7c4107_2
+  - libedit=3.1.20191231=he28a2e2_2
+  - libev=4.33=hd590300_2
+  - libexpat=2.6.4=h5888daf_0
+  - libffi=3.3=h58526e2_2
+  - libgcc=14.2.0=h77fa898_1
+  - libgcc-ng=14.2.0=h69a702a_1
+  - libgdal=3.2.1=h2812452_0
+  - libgfortran=14.2.0=h69a702a_1
+  - libgfortran-ng=14.2.0=h69a702a_1
+  - libgfortran5=14.2.0=hd5240d6_1
+  - libglib=2.68.4=h3e27bee_0
+  - libgomp=14.2.0=h77fa898_1
+  - libiconv=1.17=hd590300_2
+  - libkml=1.3.0=h01aab08_1018
+  - liblapack=3.9.0=20_linux64_openblas
+  - liblzma=5.6.3=hb9d3cd8_1
+  - liblzma-devel=5.6.3=hb9d3cd8_1
+  - libnetcdf=4.7.4=nompi_h56d31a8_107
+  - libnghttp2=1.51.0=hdcd2b5c_0
+  - libopenblas=0.3.25=pthreads_h413a1c8_0
+  - libpng=1.6.43=h2797004_0
+  - libpq=12.15=h37d81fd_1
+  - librttopo=1.1.0=hb271727_4
+  - libspatialite=5.0.1=h6ec7341_0
+  - libsqlite=3.46.0=hde9e2c9_0
+  - libssh2=1.10.0=haa6b8db_3
+  - libstdcxx=14.2.0=hc0a3c3a_1
+  - libstdcxx-ng=14.2.0=h4852527_1
+  - libtiff=4.2.0=hbd63e13_2
+  - libuuid=2.38.1=h0b41bf4_0
+  - libwebp-base=1.4.0=hd590300_0
+  - libxcb=1.17.0=h8a09558_0
+  - libxml2=2.9.10=h68273f3_2
+  - libzlib=1.2.13=h4ab18f5_6
+  - lz4-c=1.9.3=h9c3ff4c_1
+  - matplotlib=3.2.2=1
+  - matplotlib-base=3.2.2=py36h5fdd944_1
+  - ncurses=6.5=he02047a_1
+  - numpy=1.19.5=py36h2aa4a07_1
+  - openjpeg=2.3.1=hf7af979_3
+  - openssl=1.1.1w=hd590300_0
+  - pandas=1.1.5=py36h284efc9_0
+  - pcre=8.45=h9c3ff4c_0
+  - pip=21.3.1=pyhd8ed1ab_0
+  - pixman=0.44.2=h29eaf8c_0
+  - poppler=0.89.0=h669c267_1
+  - poppler-data=0.4.12=hd8ed1ab_0
+  - postgresql=12.15=h16c4e8d_1
+  - proj=7.1.1=h966b41f_3
+  - pthread-stubs=0.4=hb9d3cd8_1002
+  - pyparsing=3.1.4=pyhd8ed1ab_0
+  - python=3.6.13=hffdb5ce_0_cpython
+  - python-dateutil=2.8.2=pyhd8ed1ab_0
+  - python_abi=3.6=2_cp36m
+  - pytz=2023.3.post1=pyhd8ed1ab_0
+  - readline=8.2=h8228510_1
+  - scikit-learn=0.24.2=py36h2fdd933_0
+  - scipy=1.5.3=py36h9e8f40b_0
+  - setuptools=58.0.4=py36h5fab9bb_2
+  - sqlite=3.46.0=h6d4b2fc_0
+  - threadpoolctl=3.1.0=pyh8a188c0_0
+  - tiledb=2.1.6=h91fcb0e_1
+  - tk=8.6.13=noxft_h4845f30_101
+  - tornado=6.1=py36h8f6f2f9_1
+  - uriparser=0.9.8=hac33072_0
+  - wheel=0.37.1=pyhd8ed1ab_0
+  - xerces-c=3.2.3=hfe33f54_1
+  - xorg-libice=1.1.1=hb9d3cd8_1
+  - xorg-libsm=1.2.4=he73a12e_1
+  - xorg-libx11=1.8.10=h4f16b4b_1
+  - xorg-libxau=1.0.11=hb9d3cd8_1
+  - xorg-libxdmcp=1.1.5=hb9d3cd8_0
+  - xorg-libxext=1.3.6=hb9d3cd8_0
+  - xorg-libxrender=0.9.11=hb9d3cd8_2
+  - xz=5.6.3=hbcc6ac9_1
+  - xz-gpl-tools=5.6.3=hbcc6ac9_1
+  - xz-tools=5.6.3=hb9d3cd8_1
+  - zlib=1.2.13=h4ab18f5_6
+  - zstd=1.4.9=ha95c52a_0
+  - pip:
+      - absl-py==0.15.0
+      - astunparse==1.6.3
+      - cached-property==1.5.2
+      - cachetools==4.2.4
+      - certifi==2024.8.30
+      - charset-normalizer==2.0.12
+      - dataclasses==0.8
+      - flatbuffers==1.12
+      - gast==0.4.0
+      - google-auth==2.22.0
+      - google-auth-oauthlib==0.4.6
+      - google-pasta==0.2.0
+      - grpcio==1.34.1
+      - h5py==3.1.0
+      - idna==3.10
+      - importlib-metadata==4.8.3
+      - keras-nightly==2.5.0.dev2021032900
+      - keras-preprocessing==1.1.2
+      - markdown==3.3.7
+      - oauthlib==3.2.2
+      - opt-einsum==3.3.0
+      - protobuf==3.19.6
+      - pyasn1==0.5.1
+      - pyasn1-modules==0.3.0
+      - requests==2.27.1
+      - requests-oauthlib==2.0.0
+      - rsa==4.9
+      - six==1.15.0
+      - tensorboard==2.10.1
+      - tensorboard-data-server==0.6.1
+      - tensorboard-plugin-wit==1.8.1
+      - tensorflow==2.5.0
+      - tensorflow-estimator==2.5.0
+      - termcolor==1.1.0
+      - typing-extensions==3.7.4.3
+      - urllib3==1.26.20
+      - werkzeug==2.0.3
+      - wrapt==1.12.1
+      - zipp==3.6.0
+prefix: /opt/conda/envs/icesat-2
diff --git a/environmental.yml b/environmental.yml
deleted file mode 100644
index 83abadd..0000000
--- a/environmental.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-name: venv-tf
-channels:
-  - conda-forge
-  - defaults
-dependencies:
-  - gdal=3.2.1=py36h5adf297_0
-  - geos=3.8.1=he1b5a44_0
-  - geotiff=1.6.0=h5d11630_3
-  - gettext=0.19.8.1=h0b5b191_1005
-  - matplotlib=3.2.2=1
-  - numpy=1.19.5=py36h2aa4a07_1
-  - pandas=1.1.5=py36h284efc9_0
-  - proj=7.1.1=h966b41f_3
-  - python=3.6.13=hffdb5ce_0_cpython
-  - scikit-learn=0.24.2=py36h2fdd933_0
-  - scipy=1.5.3=py36h9e8f40b_0
-  - six=1.16.0=pyh6c4a22f_0
-  - pip:
-    - tensorflow==2.5.0
-prefix: /home/yons/miniconda3/envs/venv-tf