Use the Black, White gradient preset for the gradient map.Then set the blending mode of the adjustment layer to Luminosity and bring the opacity down to 30%.

The result should be similar to this:

Now let’s give the image a cool atmospheric color using a Curves adjustment layer. Choose Layer > New Adjustment Layer > Curves or click on the layer adjustment button in the Layers Panel and choose Curves in the contextual menu.

When the curves adjustment layer dialog window appears, click on the gray eyedropper, which will allow you to sample a part of the image to set the gray point of the curves. When you click on a specific part of the image using the gray point eyedropper, the image’s white balance will change. Take a sample somewhere on ground.

The result should be similar to this:

To give our scene a more somber feel, we need to use a cool color over the image. Let’s create another adjustment layer: Photo Filter. Click on the layer adjustment button in the Layers Panel and choose Photo Filter.

Once the Photo Filter dialog window opens, choose Deep Emerald in the pull-down menu for Filter. Make sure that the filter’s density is set at 25% and that the Preserve Luminosity option is checked.

The result should be similar to this:

Now adjust the color balance of the photo to come up with our intended atmosphere. We’ll do this with yet another adjustment layer: Color Balance. Like before, click on the layer adjustment button in the Layers Panel and choose Color Balance..

Use the settings shown below for the Color Balance adjustment layer:

The result should be similar to this:

Once again we do some changes with curve layer. Let's click on adjustment layer button.

When the curves adjustment layer dialog window appears, click on the gray eyedropper, which will allow you to sample a part of the image to set the gray point of the curves. When you click on a specific part of the image using the gray point eyedropper, the image’s white balance will change. Take a sample somewhere on ground.