{
  "id": 6137,
  "title": "Distance data and it's use",
  "url": "/competitions/ams-2014-solar-energy-prediction-contest/discussion/6137",
  "author_name": "",
  "post_date": "2013-10-28T12:28:59.117Z",
  "votes": null,
  "comment_count": 3,
  "views": 1736,
  "content": "<p>Hello All,</p>\n<p>&nbsp;Some of us might have tried to build models using the information on distance between solar energy stations and mesonet sites. I'm curious if anyone found any difference while using different types of distances. Based on competition data 3 sets of distances can be computed - based on gefs control elevation info, based on gefs perturbation elevation info &amp; some might try the average of the previous two. I'm curious if anyone noticed significant difference in predictive performance of models built using different types of distances.</p>\n<p>~Avishek</p>\n<p>&nbsp;</p>",
  "messages": [
    {
      "id": "32772",
      "postDate": "10/28/2013 12:28:59",
      "content": "<p>Hello All,</p>\n<p>&nbsp;Some of us might have tried to build models using the information on distance between solar energy stations and mesonet sites. I'm curious if anyone found any difference while using different types of distances. Based on competition data 3 sets of distances can be computed - based on gefs control elevation info, based on gefs perturbation elevation info &amp; some might try the average of the previous two. I'm curious if anyone noticed significant difference in predictive performance of models built using different types of distances.</p>\n<p>~Avishek</p>\n<p>&nbsp;</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "32926",
      "postDate": "10/31/2013 12:54:11",
      "content": "<p>I didn, t. I used harvesine distance, but it didnt help much.</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "32927",
      "postDate": "10/31/2013 13:19:10",
      "content": "<p>Just to make sure I understand correctly: you mean the distance between the&nbsp;GEFS grid points and the mesonet sites? Mesonet sites are the solar energy stations?!</p>\n<p>We use neither distance nor perturbation elevation.</p>",
      "rawMarkdown": "",
      "votes": null
    },
    {
      "id": "32946",
      "postDate": "10/31/2013 15:44:15",
      "content": "<p>By mesonet site I meant the GEFS grid points. So yes, I'm talking about the distance between the solar energy stations and the GEFS sites.&nbsp;</p>",
      "rawMarkdown": "",
      "votes": null
    }
  ],
  "comments": [
    {
      "id": 32926,
      "author_name": "leustagos",
      "author_url": "",
      "post_date": "10/31/2013 12:54:11",
      "content": "<p>I didn, t. I used harvesine distance, but it didnt help much.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 32927,
      "author_name": "pprett",
      "author_url": "",
      "post_date": "10/31/2013 13:19:10",
      "content": "<p>Just to make sure I understand correctly: you mean the distance between the&nbsp;GEFS grid points and the mesonet sites? Mesonet sites are the solar energy stations?!</p>\n<p>We use neither distance nor perturbation elevation.</p>",
      "votes": null,
      "replies": []
    },
    {
      "id": 32946,
      "author_name": "avishek",
      "author_url": "",
      "post_date": "10/31/2013 15:44:15",
      "content": "<p>By mesonet site I meant the GEFS grid points. So yes, I'm talking about the distance between the solar energy stations and the GEFS sites.&nbsp;</p>",
      "votes": null,
      "replies": []
    }
  ],
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    "32772": "",
    "32926": "",
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    "32946": ""
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  "source": "meta"
}